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# Changelog
All notable changes to this project will be documented in this file. This project adheres to [Semantic Versioning](http://semver.org/).
## [unreleased](https://github.com/nlohmann/json/releases/tag/unreleased) (2024-12-22)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.11.3...unreleased)
- Impossible de read json file create with nlohmann::ordered\_json::dump [\#4556](https://github.com/nlohmann/json/issues/4556)
- Error C2039 : 'json\_sax\_dom\_callback\_parser': is not a member of 'nlohmann::json\_abi\_v3\_11\_3::detail' [\#4529](https://github.com/nlohmann/json/issues/4529)
- `json_fwd.hpp` don't define default template arguments for ordered\_map [\#4518](https://github.com/nlohmann/json/issues/4518)
- new repo version seems stop create any the ingress-nginx controller with opentelemetry-cpp.git [\#4515](https://github.com/nlohmann/json/issues/4515)
- Error converting to/from scoped enumerations [\#4499](https://github.com/nlohmann/json/issues/4499)
- Default initialized iterators are not comparable [\#4493](https://github.com/nlohmann/json/issues/4493)
- Bug json.exception.type\_error.302 [\#4492](https://github.com/nlohmann/json/issues/4492)
- tests fail to build with clang-19 and libc++ due to unsupported `std::char_traits` [\#4490](https://github.com/nlohmann/json/issues/4490)
- Brace-Initialization Fails with json::parse and Key Access on Linux [\#4488](https://github.com/nlohmann/json/issues/4488)
- Crash when parsing nullptr [\#4485](https://github.com/nlohmann/json/issues/4485)
- Namespace macros are not respected in many instances [\#4484](https://github.com/nlohmann/json/issues/4484)
- ohos model to json string garbage characters [\#4481](https://github.com/nlohmann/json/issues/4481)
- Missing newlines in deserialized string [\#4479](https://github.com/nlohmann/json/issues/4479)
- Latest tag not available on NuGet [\#4478](https://github.com/nlohmann/json/issues/4478)
- Invalid union access for get\_ref/get\_ptr with unsigned integer [\#4475](https://github.com/nlohmann/json/issues/4475)
- /accesswallet [\#4469](https://github.com/nlohmann/json/issues/4469)
- struct reflect json with error C2440 [\#4467](https://github.com/nlohmann/json/issues/4467)
- Compiler error when using macro NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE [\#4463](https://github.com/nlohmann/json/issues/4463)
- Issue when dumping a vector of derived classes [\#4462](https://github.com/nlohmann/json/issues/4462)
- whit std::wstring compile error [\#4460](https://github.com/nlohmann/json/issues/4460)
- Inconsisten operator\[\] [\#4458](https://github.com/nlohmann/json/issues/4458)
- json parse enclosing json object with \[\] [\#4457](https://github.com/nlohmann/json/issues/4457)
- \[bug\] nlohmann::json constructor behaves improperly [\#4450](https://github.com/nlohmann/json/issues/4450)
- parse OOM [\#4449](https://github.com/nlohmann/json/issues/4449)
- Library Cannot Parse JSON File It Wrote [\#4448](https://github.com/nlohmann/json/issues/4448)
- Unexpected Integer Conversion of JSON Values on ARM64 [\#4447](https://github.com/nlohmann/json/issues/4447)
- Structure declared in natvis file template doesn't seem to match current structure of `basic_json<>` [\#4438](https://github.com/nlohmann/json/issues/4438)
- A lot of EOT in json file [\#4436](https://github.com/nlohmann/json/issues/4436)
- CVE-2024-34062 [\#4429](https://github.com/nlohmann/json/issues/4429)
- CVE-2024-39689 [\#4428](https://github.com/nlohmann/json/issues/4428)
- CVE-2024-5569 [\#4427](https://github.com/nlohmann/json/issues/4427)
- CVE-2024-37891 [\#4426](https://github.com/nlohmann/json/issues/4426)
- Tornado vulnerabilities [\#4425](https://github.com/nlohmann/json/issues/4425)
- CVE-2024-35195 [\#4424](https://github.com/nlohmann/json/issues/4424)
- CVE-2024-22195, CVE-2024-34064 [\#4423](https://github.com/nlohmann/json/issues/4423)
- CVE-2024-3651 [\#4422](https://github.com/nlohmann/json/issues/4422)
- CVE-2024-22190 [\#4421](https://github.com/nlohmann/json/issues/4421)
- CVE-2024-39705 [\#4420](https://github.com/nlohmann/json/issues/4420)
- Failing to read complex Unicode string embedded in JSON [\#4417](https://github.com/nlohmann/json/issues/4417)
- Unable to parse JSON string from snake case to camel case [\#4399](https://github.com/nlohmann/json/issues/4399)
- Crashes when I try to use ‘json::at\(\)’ on a properly structured, non null, and correctly constructed ‘.json’ file [\#4387](https://github.com/nlohmann/json/issues/4387)
- JSON\_BuildTests fail when JSON\_DisableEnumSerialization is set to ON [\#4384](https://github.com/nlohmann/json/issues/4384)
- JSON can't parse a simple data [\#4383](https://github.com/nlohmann/json/issues/4383)
- json.exception.type\_error.302 [\#4373](https://github.com/nlohmann/json/issues/4373)
- iteration\_proxy has limited usefulness in C++20 range views [\#4371](https://github.com/nlohmann/json/issues/4371)
- Clone is long due to large history [\#4370](https://github.com/nlohmann/json/issues/4370)
- Can't use nlohmann on Linux [\#4363](https://github.com/nlohmann/json/issues/4363)
- CodeQL suppressions lack justification [\#4361](https://github.com/nlohmann/json/issues/4361)
- \[json.exception.parse\_error.101\] parse error at line 1, column 4520: syntax error while parsing value - invalid string: forbidden character after backslash; last read: '".\? [\#4352](https://github.com/nlohmann/json/issues/4352)
- Cannot unflatten json object [\#4349](https://github.com/nlohmann/json/issues/4349)
- Json parsed from raw string does not interpret lists of objects like json parsed from file [\#4341](https://github.com/nlohmann/json/issues/4341)
- natvis not updated to 3.11.3 [\#4340](https://github.com/nlohmann/json/issues/4340)
- Wrong function name in documentation example [\#4334](https://github.com/nlohmann/json/issues/4334)
- git ref got interpreted as number [\#4332](https://github.com/nlohmann/json/issues/4332)
- Is float valid number been limited? [\#4322](https://github.com/nlohmann/json/issues/4322)
- Crash when construct a new json object [\#4321](https://github.com/nlohmann/json/issues/4321)
- gdb-pretty-print broken since m\_data added [\#4309](https://github.com/nlohmann/json/issues/4309)
- Docs have incorrect info for `update()` [\#4307](https://github.com/nlohmann/json/issues/4307)
- CBOR data cannot be decoded [\#4301](https://github.com/nlohmann/json/issues/4301)
- Inconsistent behaviour of json construction using `std::initializer_list` [\#4299](https://github.com/nlohmann/json/issues/4299)
- Assertion failed when accessing non-existing object with const json object [\#4297](https://github.com/nlohmann/json/issues/4297)
- Validatable release artifacts are not sufficient for packaging \(trying to run tests\) [\#4296](https://github.com/nlohmann/json/issues/4296)
- ordered json pointer corruption [\#4289](https://github.com/nlohmann/json/issues/4289)
- Incorrect floating point parsing [\#4285](https://github.com/nlohmann/json/issues/4285)
- Segfault on parse when using "\#pragma pack \(push, 1\)" [\#4284](https://github.com/nlohmann/json/issues/4284)
- Simple example with nlohmann::ordered\_json doesn't compile [\#4282](https://github.com/nlohmann/json/issues/4282)
- Program crashes with ordered\_json, but works fine with json [\#4279](https://github.com/nlohmann/json/issues/4279)
- JSON parses as array when assigned in initializer list. [\#4278](https://github.com/nlohmann/json/issues/4278)
- Can't run `make amalgamate` [\#4275](https://github.com/nlohmann/json/issues/4275)
- Parsing the unicode string got the wrong result [\#4272](https://github.com/nlohmann/json/issues/4272)
- Issue with including \<version\> [\#4241](https://github.com/nlohmann/json/issues/4241)
- Exception when trying to insert my json object inside json file [\#4239](https://github.com/nlohmann/json/issues/4239)
- `to_json` is erroneously converting enums with underlying unsigned types to signed numbers [\#4236](https://github.com/nlohmann/json/issues/4236)
- Build failure on macOS Sonoma 14.1.1 [\#4228](https://github.com/nlohmann/json/issues/4228)
- Deprecation warning on save action in check-amalgamation CI step [\#4227](https://github.com/nlohmann/json/issues/4227)
- 3.11.3: test suite fails in 4 units [\#4224](https://github.com/nlohmann/json/issues/4224)
- Exception thrown when dumping utf-8 characters when using std::string [\#4213](https://github.com/nlohmann/json/issues/4213)
- patch\_inplace assumes StringType is std::string [\#4134](https://github.com/nlohmann/json/issues/4134)
- Getting a weak-vtables warning with clang on ubuntu 22.04 [\#4087](https://github.com/nlohmann/json/issues/4087)
- SAX interface unexpectedly gets locale-altered float representation. [\#4084](https://github.com/nlohmann/json/issues/4084)
- Feat: hash pin github workflow dependencies [\#4058](https://github.com/nlohmann/json/issues/4058)
- compiler error using clang-16.0.5 when using gcc-13.1 standard library [\#4051](https://github.com/nlohmann/json/issues/4051)
- Missing requirement on `plantuml` binary package [\#4026](https://github.com/nlohmann/json/issues/4026)
- Compile failure for macos 10.10 SDK + darwin14 [\#3991](https://github.com/nlohmann/json/issues/3991)
- Test suite does not compile with C++20 and Clang 17 [\#3979](https://github.com/nlohmann/json/issues/3979)
- `modernize-avoid-c-arrays` clang-tidy warning when using `NLOHMANN_JSON_SERIALIZE_ENUM` macro [\#3924](https://github.com/nlohmann/json/issues/3924)
- JSON\_DIAGNOSTICS trigger assertion [\#3915](https://github.com/nlohmann/json/issues/3915)
- Compiler warning 'array-bounds' on g++12.2.0 on Ubuntu 22.10 kinetic with RelWithDebugInfo [\#3808](https://github.com/nlohmann/json/issues/3808)
- The MSVC team recently test JSON project failed to run test on release configuration on windows\_x64. [\#3542](https://github.com/nlohmann/json/issues/3542)
- Bad JSON diff when removing object in array of object [\#3146](https://github.com/nlohmann/json/issues/3146)
- Limit AppVeyor use [\#3089](https://github.com/nlohmann/json/issues/3089)
- pkgconfig integration wrongly rendered if tests are run [\#2907](https://github.com/nlohmann/json/issues/2907)
- Compile error for json in template and variadic macros. [\#2794](https://github.com/nlohmann/json/issues/2794)
- How to Serialize derived class to JSON object? [\#2199](https://github.com/nlohmann/json/issues/2199)
- \[C++17\] Allow std::optional to convert to nlohmann::json [\#1749](https://github.com/nlohmann/json/issues/1749)
- Fix typo in nlohmann\_define\_derived\_type.md [\#4565](https://github.com/nlohmann/json/pull/4565) ([gregmarr](https://github.com/gregmarr))
- Add ONLY\_SERIALIZE for NLOHMANN\_DEFINE\_DERIVED\_TYPE\_\* macros [\#4562](https://github.com/nlohmann/json/pull/4562) ([EinarsNG](https://github.com/EinarsNG))
- Suppress modernize-use-integer-sign-comparison [\#4558](https://github.com/nlohmann/json/pull/4558) ([nlohmann](https://github.com/nlohmann))
- Bump actions/upload-artifact from 4.4.3 to 4.5.0 [\#4557](https://github.com/nlohmann/json/pull/4557) ([dependabot[bot]](https://github.com/apps/dependabot))
- Clean up CI [\#4553](https://github.com/nlohmann/json/pull/4553) ([nlohmann](https://github.com/nlohmann))
- \[StepSecurity\] ci: Harden GitHub Actions [\#4551](https://github.com/nlohmann/json/pull/4551) ([step-security-bot](https://github.com/step-security-bot))
- Fix token permissions warnings [\#4550](https://github.com/nlohmann/json/pull/4550) ([nlohmann](https://github.com/nlohmann))
- Add step to build the documentation [\#4549](https://github.com/nlohmann/json/pull/4549) ([nlohmann](https://github.com/nlohmann))
- Bump mkdocs-material from 9.5.48 to 9.5.49 in /docs/mkdocs [\#4548](https://github.com/nlohmann/json/pull/4548) ([dependabot[bot]](https://github.com/apps/dependabot))
- Move reuse dependency to requirements.txt file [\#4547](https://github.com/nlohmann/json/pull/4547) ([nlohmann](https://github.com/nlohmann))
- Clean up [\#4546](https://github.com/nlohmann/json/pull/4546) ([nlohmann](https://github.com/nlohmann))
- ⬆️ Bump ossf/scorecard-action from 2.3.3 to 2.4.0 [\#4545](https://github.com/nlohmann/json/pull/4545) ([dependabot[bot]](https://github.com/apps/dependabot))
- ⬆️ Bump lukka/get-cmake from 3.31.0 to 3.31.2 [\#4544](https://github.com/nlohmann/json/pull/4544) ([dependabot[bot]](https://github.com/apps/dependabot))
- ⬆️ Bump github/codeql-action from 2.27.9 to 3.27.9 [\#4543](https://github.com/nlohmann/json/pull/4543) ([dependabot[bot]](https://github.com/apps/dependabot))
- ⬆️ Bump watchdog from 2.1.7 to 6.0.0 in /tools/serve\_header [\#4542](https://github.com/nlohmann/json/pull/4542) ([dependabot[bot]](https://github.com/apps/dependabot))
- ⬆️ Bump pyyaml from 6.0 to 6.0.2 in /tools/serve\_header [\#4541](https://github.com/nlohmann/json/pull/4541) ([dependabot[bot]](https://github.com/apps/dependabot))
- ⬆️ Bump actions/github-script from 6.4.0 to 7.0.1 [\#4540](https://github.com/nlohmann/json/pull/4540) ([dependabot[bot]](https://github.com/apps/dependabot))
- \[StepSecurity\] Apply security best practices [\#4539](https://github.com/nlohmann/json/pull/4539) ([step-security-bot](https://github.com/step-security-bot))
- Set parents after insert call [\#4537](https://github.com/nlohmann/json/pull/4537) ([nlohmann](https://github.com/nlohmann))
- Allow patch and diff to be used with arbitrary string types [\#4536](https://github.com/nlohmann/json/pull/4536) ([nlohmann](https://github.com/nlohmann))
- Add more package managers [\#4533](https://github.com/nlohmann/json/pull/4533) ([nlohmann](https://github.com/nlohmann))
- Replace EOF with char\_traits [\#4532](https://github.com/nlohmann/json/pull/4532) ([nlohmann](https://github.com/nlohmann))
- Fix return value of get\_ptr for unsigned integers [\#4525](https://github.com/nlohmann/json/pull/4525) ([nlohmann](https://github.com/nlohmann))
- Add more GCC warning flags [\#4524](https://github.com/nlohmann/json/pull/4524) ([nlohmann](https://github.com/nlohmann))
- Update licenses [\#4521](https://github.com/nlohmann/json/pull/4521) ([nlohmann](https://github.com/nlohmann))
- json start/end position implementation [\#4517](https://github.com/nlohmann/json/pull/4517) ([sushshring](https://github.com/sushshring))
- Overwork documentation [\#4516](https://github.com/nlohmann/json/pull/4516) ([nlohmann](https://github.com/nlohmann))
- Allow comparing default initialized iterators [\#4512](https://github.com/nlohmann/json/pull/4512) ([nlohmann](https://github.com/nlohmann))
- fix: integer parsed as float when EINTR set in errno [\#4506](https://github.com/nlohmann/json/pull/4506) ([StuartGorman](https://github.com/StuartGorman))
- Make SAX output locale-independent [\#4505](https://github.com/nlohmann/json/pull/4505) ([nlohmann](https://github.com/nlohmann))
- Skip enum tests when JSON\_DisableEnumSerialization=ON [\#4504](https://github.com/nlohmann/json/pull/4504) ([nlohmann](https://github.com/nlohmann))
- Fix weak-vtables warning [\#4500](https://github.com/nlohmann/json/pull/4500) ([nlohmann](https://github.com/nlohmann))
- Suppress warnings in NLOHMANN\_JSON\_SERIALIZE\_ENUM [\#4497](https://github.com/nlohmann/json/pull/4497) ([nlohmann](https://github.com/nlohmann))
- Add comment for \#4494 [\#4496](https://github.com/nlohmann/json/pull/4496) ([nlohmann](https://github.com/nlohmann))
- Add test for libstdc++ [\#4495](https://github.com/nlohmann/json/pull/4495) ([nlohmann](https://github.com/nlohmann))
- Another desperate try to fix the CI [\#4489](https://github.com/nlohmann/json/pull/4489) ([nlohmann](https://github.com/nlohmann))
- Possible fix for \#4485 [\#4487](https://github.com/nlohmann/json/pull/4487) ([jordan-hoang](https://github.com/jordan-hoang))
- Update CONTRIBUTING.md [\#4486](https://github.com/nlohmann/json/pull/4486) ([zerocukor287](https://github.com/zerocukor287))
- Allow overriding the CMake target name [\#4483](https://github.com/nlohmann/json/pull/4483) ([iboB](https://github.com/iboB))
- Update is\_structured.md [\#4472](https://github.com/nlohmann/json/pull/4472) ([thetimr](https://github.com/thetimr))
- Add CPack support [\#4459](https://github.com/nlohmann/json/pull/4459) ([zjyhjqs](https://github.com/zjyhjqs))
- CMake: generate a pkg-config file that follow pkg-config conventions [\#4456](https://github.com/nlohmann/json/pull/4456) ([dcbaker](https://github.com/dcbaker))
- Update natvis to reflect 3.11.3 and the current structure of basic\_json [\#4451](https://github.com/nlohmann/json/pull/4451) ([gmyers18](https://github.com/gmyers18))
- Docs: fix typos of 'whether' in `operator_{gt,le,lt}.md` [\#4412](https://github.com/nlohmann/json/pull/4412) ([tsnl](https://github.com/tsnl))
- Remove alwayslink=True Bazel flag [\#4396](https://github.com/nlohmann/json/pull/4396) ([mering](https://github.com/mering))
- Optimize binary `get_number` implementation by reading multiple bytes at once [\#4391](https://github.com/nlohmann/json/pull/4391) ([TianyiChen](https://github.com/TianyiChen))
- Make iterator\_proxy\_value a forward\_iterator \(\#4371\) [\#4372](https://github.com/nlohmann/json/pull/4372) ([captaincrutches](https://github.com/captaincrutches))
- Add lgtm explanation [\#4362](https://github.com/nlohmann/json/pull/4362) ([nlohmann](https://github.com/nlohmann))
- chore: fix some typos in comments [\#4345](https://github.com/nlohmann/json/pull/4345) ([laterlaugh](https://github.com/laterlaugh))
- Fix gdb pretty printer [\#4343](https://github.com/nlohmann/json/pull/4343) ([MrJia1997](https://github.com/MrJia1997))
- Fix for incorrect function name in documentation example [\#4342](https://github.com/nlohmann/json/pull/4342) ([alexprabhat99](https://github.com/alexprabhat99))
- Fixed an error in the `Custom data source` example. [\#4335](https://github.com/nlohmann/json/pull/4335) ([philip-paul-mueller](https://github.com/philip-paul-mueller))
- Updated exception handling to catch const reference in out\_of\_range [\#4331](https://github.com/nlohmann/json/pull/4331) ([LeilaShcheglova](https://github.com/LeilaShcheglova))
- \#4307 Updated docx to 3.10.5 from 3.10.4 [\#4310](https://github.com/nlohmann/json/pull/4310) ([AniketDhemare](https://github.com/AniketDhemare))
- Align astyle flags in Makefile with CI [\#4277](https://github.com/nlohmann/json/pull/4277) ([serge-s](https://github.com/serge-s))
- Suppress Clang-Tidy warnings [\#4276](https://github.com/nlohmann/json/pull/4276) ([nlohmann](https://github.com/nlohmann))
- Remove broken link from CONTRIBUTING.md [\#4274](https://github.com/nlohmann/json/pull/4274) ([serge-s](https://github.com/serge-s))
- Fix version in json\_has\_static\_rtti.md [\#4269](https://github.com/nlohmann/json/pull/4269) ([ALF-ONE](https://github.com/ALF-ONE))
- Add support of multi-dim C-style array member of struct. [\#4262](https://github.com/nlohmann/json/pull/4262) ([peng-wang-cn](https://github.com/peng-wang-cn))
- Docs: Fix wrong code usage in the Value access section of `json_pointer.md` [\#4255](https://github.com/nlohmann/json/pull/4255) ([Fallen-Breath](https://github.com/Fallen-Breath))
- Fix `to_json` for enums when the enum has an unsigned underlying type. [\#4237](https://github.com/nlohmann/json/pull/4237) ([TheJCAB](https://github.com/TheJCAB))
- feat: Rebase `feature/optional` to `develop` [\#4036](https://github.com/nlohmann/json/pull/4036) ([fsandhei](https://github.com/fsandhei))
- Add NLOHMANN\_DEFINE\_DERIVED\_TYPE\_\* macros [\#4033](https://github.com/nlohmann/json/pull/4033) ([rotolof](https://github.com/rotolof))
## [v3.11.3](https://github.com/nlohmann/json/releases/tag/v3.11.3) (2023-11-28)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.11.2...v3.11.3)
- Parser and constructor resolve integer types differently [\#4207](https://github.com/nlohmann/json/issues/4207)
- README.md overuses `template` keyword before `get` function [\#4205](https://github.com/nlohmann/json/issues/4205)
- Exception SIGSEGV - Segmentation violation signal on file parsing \(v3.11.2, linux, doctest\) [\#4193](https://github.com/nlohmann/json/issues/4193)
- In highly nested functions, passing json into a function leads to a segmentation fault/bus error [\#4186](https://github.com/nlohmann/json/issues/4186)
- why a single-object json file appears in an array [\#4183](https://github.com/nlohmann/json/issues/4183)
- Initializing `json` by direct initialization and copy initialization invokes different constructors [\#4174](https://github.com/nlohmann/json/issues/4174)
- Deprecation warning about std::char\_traits\<unsigned char\> [\#4163](https://github.com/nlohmann/json/issues/4163)
- LLVM 16.0.6 issues warning for literal operators when Wdeprecated-literal-operator [\#4129](https://github.com/nlohmann/json/issues/4129)
- GCC compiler warning about violating the C++ One Definition Rule \[-Wodr\] [\#4116](https://github.com/nlohmann/json/issues/4116)
- error: building nlohmann-json:arm64-osx failed with: BUILD\_FAILED [\#4091](https://github.com/nlohmann/json/issues/4091)
- dump\(\): Non-conforming with JSON-spec escape of strings? [\#4088](https://github.com/nlohmann/json/issues/4088)
- Compiling in visual studio 2022 gives a warning [\#4081](https://github.com/nlohmann/json/issues/4081)
- Upgrade CMake minimum version [\#4076](https://github.com/nlohmann/json/issues/4076)
- \ character in the content of a string cause error in parser.? [\#4067](https://github.com/nlohmann/json/issues/4067)
- JSON Parsing Freeze Issue on Nintendo Switch [\#4066](https://github.com/nlohmann/json/issues/4066)
- Clang++ compilation fails on extremely small example [\#4061](https://github.com/nlohmann/json/issues/4061)
- how about open a new repository for header only version？ [\#4060](https://github.com/nlohmann/json/issues/4060)
- json::count returns only 0 or 1 [\#4052](https://github.com/nlohmann/json/issues/4052)
- std::function error [\#4050](https://github.com/nlohmann/json/issues/4050)
- Json package not compiling properly [\#4042](https://github.com/nlohmann/json/issues/4042)
- Explicit conversion example in docs should use `template get` [\#4038](https://github.com/nlohmann/json/issues/4038)
- Improve wording of parse\_error exception [\#4037](https://github.com/nlohmann/json/issues/4037)
- Parse error on valid JSON file [\#4028](https://github.com/nlohmann/json/issues/4028)
- Empty JSON object returns size of 1 [\#4027](https://github.com/nlohmann/json/issues/4027)
- Help needed to fix CI [\#4025](https://github.com/nlohmann/json/issues/4025)
- Security vulnerabilities detected: CVE-2022-24439, WS-2022-0438, WS-2022-0437 [\#4020](https://github.com/nlohmann/json/issues/4020)
- multithreading use from\_msgpack leading very slow [\#4016](https://github.com/nlohmann/json/issues/4016)
- Error with sol for Lua: items\(\) is not a recognized container [\#4012](https://github.com/nlohmann/json/issues/4012)
- Parser does not read non ascii characters : ŞÜİĞ [\#4007](https://github.com/nlohmann/json/issues/4007)
- malloc\(\): unaligned fastbin chunk detected [\#3999](https://github.com/nlohmann/json/issues/3999)
- try/catch block doesn't work while accessing const json& array. [\#3998](https://github.com/nlohmann/json/issues/3998)
- a bug about list [\#3995](https://github.com/nlohmann/json/issues/3995)
- heap corruption when i use nlohmann::json::accept function to check a valid json [\#3994](https://github.com/nlohmann/json/issues/3994)
- Exception on gcc but not apple clang [\#3986](https://github.com/nlohmann/json/issues/3986)
- Can't support convert the type? std::string json\_str = R"\({"value": "3.1415"}\)"; float value = j\["value"\].get\<float\>\(\); [\#3984](https://github.com/nlohmann/json/issues/3984)
- `#pragma once` not supported with C++20 modules in clang [\#3974](https://github.com/nlohmann/json/issues/3974)
- const array\_t::operator\[\] results in buffer overflow / segv on nullptr on out of bounds access [\#3973](https://github.com/nlohmann/json/issues/3973)
- Set minimal permissions to Github Workflows [\#3971](https://github.com/nlohmann/json/issues/3971)
- Parsing array error [\#3968](https://github.com/nlohmann/json/issues/3968)
- why I can return tuple as json? [\#3961](https://github.com/nlohmann/json/issues/3961)
- type must be number, but is null [\#3956](https://github.com/nlohmann/json/issues/3956)
- Class Composition of json members produces incorrect json when constructing with initialization list [\#3955](https://github.com/nlohmann/json/issues/3955)
- exit without error message [\#3948](https://github.com/nlohmann/json/issues/3948)
- NLOHMANN\_DEFINE\_TYPE\_INTRUSIVE doesn't work with "json\_fwd.hpp" [\#3946](https://github.com/nlohmann/json/issues/3946)
- Dangerous use of pull\_request\_target [\#3945](https://github.com/nlohmann/json/issues/3945)
- Test \#7: test-bjdata\_cpp11 ............................\*\*\*Failed [\#3941](https://github.com/nlohmann/json/issues/3941)
- Memory leak detection with basic usage of NLOHMANN\_JSON\_SERIALIZE\_ENUM [\#3939](https://github.com/nlohmann/json/issues/3939)
- Parse doesnt work [\#3936](https://github.com/nlohmann/json/issues/3936)
- Clean up badges [\#3935](https://github.com/nlohmann/json/issues/3935)
- \[json.exception.type\_error.305\] cannot use operator\[\] with a string argument with array [\#3931](https://github.com/nlohmann/json/issues/3931)
- GCC 13 build failures [\#3927](https://github.com/nlohmann/json/issues/3927)
- Exception throw even though code is inside try/catch [\#3926](https://github.com/nlohmann/json/issues/3926)
- Please fix failing tests [\#3923](https://github.com/nlohmann/json/issues/3923)
- Security vulnerability in dependency: future 0.18.2 [\#3922](https://github.com/nlohmann/json/issues/3922)
- json pretty printer causes python exceptions on non-json types [\#3919](https://github.com/nlohmann/json/issues/3919)
- how does a normal basic\_json\<\> object cuase assertion `false` [\#3918](https://github.com/nlohmann/json/issues/3918)
- The library can not parse JSON generate by Chome DevTools Protocol [\#3903](https://github.com/nlohmann/json/issues/3903)
- Typo in `cmake/test.cmake` [\#3902](https://github.com/nlohmann/json/issues/3902)
- Parser adds wrapping array when compiled with GCC [\#3897](https://github.com/nlohmann/json/issues/3897)
- when i use for\(auto iter& : jsonObject\) it occure some error [\#3893](https://github.com/nlohmann/json/issues/3893)
- Check Drone CI [\#3890](https://github.com/nlohmann/json/issues/3890)
- Json::accept\(std::ifstream\) [\#3884](https://github.com/nlohmann/json/issues/3884)
- \[json.exception.parse\_error.101\] parse error at line 1, column 1: syntax error while parsing value - unexpected end of input; expected '\[', '{', or a literal [\#3882](https://github.com/nlohmann/json/issues/3882)
- Memory leak when exception is thrown in adl\_serializer::to\_json [\#3881](https://github.com/nlohmann/json/issues/3881)
- building with cmake [\#3880](https://github.com/nlohmann/json/issues/3880)
- \[json.exception.type\_error.316\] invalid UTF-8 byte at index 0: 0xB6 [\#3879](https://github.com/nlohmann/json/issues/3879)
- Visual Studio 2015 C2664 error std::pair\< [\#3867](https://github.com/nlohmann/json/issues/3867)
- I want the data field to be empty serialized and deserialized to each other [\#3866](https://github.com/nlohmann/json/issues/3866)
- Generated natvis is invalid XML [\#3858](https://github.com/nlohmann/json/issues/3858)
- Json Arrays have inconsistent nesting levels across different OSs [\#3854](https://github.com/nlohmann/json/issues/3854)
- Occur error when parse character '\' [\#3844](https://github.com/nlohmann/json/issues/3844)
- Proccess crash as soon as I parse json [\#3843](https://github.com/nlohmann/json/issues/3843)
- json::parse and constructor with the same json generates different type [\#3842](https://github.com/nlohmann/json/issues/3842)
- json::accept return false on valid JSON [\#3838](https://github.com/nlohmann/json/issues/3838)
- decode\(state, codep, byte\) generates warnings. [\#3837](https://github.com/nlohmann/json/issues/3837)
- Arithmetic operators are not working as expected [\#3832](https://github.com/nlohmann/json/issues/3832)
- array\_index does not catch std::invalid\_argument exception from std::stoull [\#3831](https://github.com/nlohmann/json/issues/3831)
- 3.11.2: test suite is failing in two units [\#3828](https://github.com/nlohmann/json/issues/3828)
- Compile Error on g++ using get\(\) function [\#3827](https://github.com/nlohmann/json/issues/3827)
- nlohmann::json::parse can't handle the "€" symbol. [\#3825](https://github.com/nlohmann/json/issues/3825)
- When reading a non-existent key, I unexpectedly get a value. Is it the wrong way I use it? [\#3811](https://github.com/nlohmann/json/issues/3811)
- Code analysis warning string\_concat.hpp C26800: Use of a moved from object [\#3805](https://github.com/nlohmann/json/issues/3805)
- The code used to build with 3.10.2 but fails now [\#3804](https://github.com/nlohmann/json/issues/3804)
- Inconsistent Behaviour of NaN & Null Values [\#3799](https://github.com/nlohmann/json/issues/3799)
- json\_fwd.hpp doesn't work [\#3796](https://github.com/nlohmann/json/issues/3796)
- Compilation fails in MSVC 22 [\#3787](https://github.com/nlohmann/json/issues/3787)
- parsing json with missing key throws exception [\#3784](https://github.com/nlohmann/json/issues/3784)
- Allow to disable inline namespaces completley [\#3746](https://github.com/nlohmann/json/issues/3746)
- double free or Assertion failed! [\#3729](https://github.com/nlohmann/json/issues/3729)
- Amalgated json\_fwd.hpp not included in include.zip [\#3727](https://github.com/nlohmann/json/issues/3727)
- INT64\_MIN/MAX not defined for newer g++ [\#3722](https://github.com/nlohmann/json/issues/3722)
- Compilation error with JSON\_DIAGNOSTICS enabled [\#3717](https://github.com/nlohmann/json/issues/3717)
- class-level enum not serialized as string via NLOHMANN\_JSON\_SERIALIZE\_ENUM [\#3715](https://github.com/nlohmann/json/issues/3715)
- Local copy given by operator\[\] or at\(\) [\#3704](https://github.com/nlohmann/json/issues/3704)
- nlohmann::to\_json method not acting as expected with nlohmann::adl\_serializer specialization. [\#3340](https://github.com/nlohmann/json/issues/3340)
- braced-init-list: array vs other constructor [\#2583](https://github.com/nlohmann/json/issues/2583)
- JSON for Modern C++ 3.11.3 [\#4222](https://github.com/nlohmann/json/pull/4222) ([nlohmann](https://github.com/nlohmann))
- Update documentation for the next release [\#4216](https://github.com/nlohmann/json/pull/4216) ([nlohmann](https://github.com/nlohmann))
- Fix failing CI checks [\#4215](https://github.com/nlohmann/json/pull/4215) ([colbychaskell](https://github.com/colbychaskell))
- Fix CI \(again\) [\#4196](https://github.com/nlohmann/json/pull/4196) ([nlohmann](https://github.com/nlohmann))
- fix cmake header path in install with custom CMAKE\_INSTALL\_INCLUDEDIR [\#4194](https://github.com/nlohmann/json/pull/4194) ([bebuch](https://github.com/bebuch))
- Add more specific error message when attempting to parse empty input [\#4180](https://github.com/nlohmann/json/pull/4180) ([colbychaskell](https://github.com/colbychaskell))
- Fix char\_traits deprecation warning [\#4179](https://github.com/nlohmann/json/pull/4179) ([colbychaskell](https://github.com/colbychaskell))
- Fix MinGW CI [\#4175](https://github.com/nlohmann/json/pull/4175) ([scribam](https://github.com/scribam))
- Fix spellcheck issue [\#4173](https://github.com/nlohmann/json/pull/4173) ([mwestphal](https://github.com/mwestphal))
- Fix source highlighting in user defined type macros docs [\#4169](https://github.com/nlohmann/json/pull/4169) ([ZeronSix](https://github.com/ZeronSix))
- Fix deprecation warning [\#4161](https://github.com/nlohmann/json/pull/4161) ([nlohmann](https://github.com/nlohmann))
- Fix CI [\#4160](https://github.com/nlohmann/json/pull/4160) ([nlohmann](https://github.com/nlohmann))
- Update index.md [\#4159](https://github.com/nlohmann/json/pull/4159) ([miny1233](https://github.com/miny1233))
- Update index.md [\#4149](https://github.com/nlohmann/json/pull/4149) ([HO-COOH](https://github.com/HO-COOH))
- Correct a typo in serve\_header/README.md [\#4143](https://github.com/nlohmann/json/pull/4143) ([felixonmars](https://github.com/felixonmars))
- Fixed init-list construction when size\_type is not int [\#4140](https://github.com/nlohmann/json/pull/4140) ([tomalakgeretkal](https://github.com/tomalakgeretkal))
- Update CODEOWNERS [\#4126](https://github.com/nlohmann/json/pull/4126) ([tarolling](https://github.com/tarolling))
- Accept NEW CMake policies up to CMake 3.14 [\#4112](https://github.com/nlohmann/json/pull/4112) ([craigscott-crascit](https://github.com/craigscott-crascit))
- Fix typo in afl\_driver.cpp [\#4109](https://github.com/nlohmann/json/pull/4109) ([eltociear](https://github.com/eltociear))
- Capture exceptions by const& in docs. [\#4099](https://github.com/nlohmann/json/pull/4099) ([iwanders](https://github.com/iwanders))
- Fix CI, again [\#4083](https://github.com/nlohmann/json/pull/4083) ([nlohmann](https://github.com/nlohmann))
- Fix Clang-Tidy warnings [\#4047](https://github.com/nlohmann/json/pull/4047) ([nlohmann](https://github.com/nlohmann))
- Fix compile error with \_HAS\_STATIC\_RTTI=0 [\#4046](https://github.com/nlohmann/json/pull/4046) ([ALF-ONE](https://github.com/ALF-ONE))
- Add to CONTRIBUTING.md that `make pretty` is required for test updates. [\#4045](https://github.com/nlohmann/json/pull/4045) ([gregmarr](https://github.com/gregmarr))
- Added to tests the file unit-algorithm.cpp \(c++ 11\) functions from algorithm library [\#4044](https://github.com/nlohmann/json/pull/4044) ([Tomerkm](https://github.com/Tomerkm))
- Use template get instead of get in examples [\#4039](https://github.com/nlohmann/json/pull/4039) ([tusooa](https://github.com/tusooa))
- Support Apple's Swift Package Manager [\#4010](https://github.com/nlohmann/json/pull/4010) ([aleksproger](https://github.com/aleksproger))
- Add Vcpkg port version badge [\#3988](https://github.com/nlohmann/json/pull/3988) ([njakob](https://github.com/njakob))
- Fix CI + new Doctest [\#3985](https://github.com/nlohmann/json/pull/3985) ([nlohmann](https://github.com/nlohmann))
- Set minimal permissions to Github Workflows [\#3972](https://github.com/nlohmann/json/pull/3972) ([joycebrum](https://github.com/joycebrum))
- Refactor amalgamation workflow to avoid dangerous use of pull\_request\_target [\#3969](https://github.com/nlohmann/json/pull/3969) ([joycebrum](https://github.com/joycebrum))
- Fix typo in test.cmake [\#3951](https://github.com/nlohmann/json/pull/3951) ([theevilone45](https://github.com/theevilone45))
- tests/unit-iterators2: use std::ranges::equals for range comparisons [\#3950](https://github.com/nlohmann/json/pull/3950) ([ArsenArsen](https://github.com/ArsenArsen))
- 3935, removed lgtm badge and added Cirrus CI badge [\#3937](https://github.com/nlohmann/json/pull/3937) ([haadfida](https://github.com/haadfida))
- ⬆️ Bump future from 0.18.2 to 0.18.3 in /docs/mkdocs [\#3934](https://github.com/nlohmann/json/pull/3934) ([dependabot[bot]](https://github.com/apps/dependabot))
- Change 2022 to 2023 [\#3932](https://github.com/nlohmann/json/pull/3932) ([floriansegginger](https://github.com/floriansegginger))
- PrettyPrinter: Check if match is valid before accessing group [\#3920](https://github.com/nlohmann/json/pull/3920) ([Finkman](https://github.com/Finkman))
- Fix CI issues [\#3906](https://github.com/nlohmann/json/pull/3906) ([barcode](https://github.com/barcode))
- Prevent memory leak when exception is thrown in adl\_serializer::to\_json [\#3901](https://github.com/nlohmann/json/pull/3901) ([barcode](https://github.com/barcode))
- custom allocators: define missing 'rebind' type [\#3895](https://github.com/nlohmann/json/pull/3895) ([trofi](https://github.com/trofi))
- Try old MinGW script [\#3892](https://github.com/nlohmann/json/pull/3892) ([nlohmann](https://github.com/nlohmann))
- Upgrade Python packages [\#3891](https://github.com/nlohmann/json/pull/3891) ([nlohmann](https://github.com/nlohmann))
- Fix warning about moved from object [\#3889](https://github.com/nlohmann/json/pull/3889) ([nlohmann](https://github.com/nlohmann))
- Remove a magic number [\#3888](https://github.com/nlohmann/json/pull/3888) ([nlohmann](https://github.com/nlohmann))
- Add migration guide [\#3887](https://github.com/nlohmann/json/pull/3887) ([nlohmann](https://github.com/nlohmann))
- Clang 15 [\#3876](https://github.com/nlohmann/json/pull/3876) ([nlohmann](https://github.com/nlohmann))
- Bump certifi from 2022.6.15 to 2022.12.7 in /docs/mkdocs [\#3872](https://github.com/nlohmann/json/pull/3872) ([dependabot[bot]](https://github.com/apps/dependabot))
- Fix natvis XML [\#3863](https://github.com/nlohmann/json/pull/3863) ([nlohmann](https://github.com/nlohmann))
- Fix pipeline [\#3862](https://github.com/nlohmann/json/pull/3862) ([nlohmann](https://github.com/nlohmann))
- Add CIFuzz CI GitHub action [\#3845](https://github.com/nlohmann/json/pull/3845) ([DavidKorczynski](https://github.com/DavidKorczynski))
- Add serialization-only user defined type macros [\#3816](https://github.com/nlohmann/json/pull/3816) ([ZeronSix](https://github.com/ZeronSix))
- Bump joblib from 1.1.0 to 1.2.0 in /docs/mkdocs [\#3781](https://github.com/nlohmann/json/pull/3781) ([dependabot[bot]](https://github.com/apps/dependabot))
- Fix some typos for n-dimensional arrays [\#3767](https://github.com/nlohmann/json/pull/3767) ([striezel](https://github.com/striezel))
- Fix 'declaration hides global declaration' warning [\#3751](https://github.com/nlohmann/json/pull/3751) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix typos in .md files [\#3748](https://github.com/nlohmann/json/pull/3748) ([tocic](https://github.com/tocic))
- Update Codacy link [\#3740](https://github.com/nlohmann/json/pull/3740) ([nlohmann](https://github.com/nlohmann))
- Add missing files to release artifacts [\#3728](https://github.com/nlohmann/json/pull/3728) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add dark mode toggle to documentation [\#3726](https://github.com/nlohmann/json/pull/3726) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add clang-tools to required tools for ci\_static\_analysis\_clang [\#3724](https://github.com/nlohmann/json/pull/3724) ([nlohmann](https://github.com/nlohmann))
- Replace limit macros with std::numeric\_limits [\#3723](https://github.com/nlohmann/json/pull/3723) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add missing \<numeric\> include [\#3719](https://github.com/nlohmann/json/pull/3719) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add Bazel build support [\#3709](https://github.com/nlohmann/json/pull/3709) ([Vertexwahn](https://github.com/Vertexwahn))
- Use official Clang/GCC containers [\#3703](https://github.com/nlohmann/json/pull/3703) ([nlohmann](https://github.com/nlohmann))
- Add 'Check amalgamation' workflow [\#3693](https://github.com/nlohmann/json/pull/3693) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Allow custom base class as node customization point [\#3110](https://github.com/nlohmann/json/pull/3110) ([barcode](https://github.com/barcode))
## [v3.11.2](https://github.com/nlohmann/json/releases/tag/v3.11.2) (2022-08-12)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.11.1...v3.11.2)
- MSVC natvis visualizer does not work after introduction of inline ABI namespace [\#3696](https://github.com/nlohmann/json/issues/3696)
- The use of parenthesis gives compilation errors in some situations [\#3682](https://github.com/nlohmann/json/issues/3682)
- extern from/to\_json result in linker error [\#3657](https://github.com/nlohmann/json/issues/3657)
- json\_fwd.hpp no longer standalone [\#3656](https://github.com/nlohmann/json/issues/3656)
- regression: `.value<size_t>` is compilation error. [\#3655](https://github.com/nlohmann/json/issues/3655)
- Regression: no match for 'operator!=' comparing json\_pointer and const char \*/string\_t [\#3654](https://github.com/nlohmann/json/issues/3654)
- Regression: call to member function 'value' is ambiguous [\#3652](https://github.com/nlohmann/json/issues/3652)
- macOS 10.15 Actions runner image deprecation [\#3612](https://github.com/nlohmann/json/issues/3612)
- generate\_natvis.py: validate version number; cleanup [\#3698](https://github.com/nlohmann/json/pull/3698) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add Python script for generating Natvis file and update file for 3.11.2 [\#3697](https://github.com/nlohmann/json/pull/3697) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- fix typo in json\_pointer.md [\#3692](https://github.com/nlohmann/json/pull/3692) ([eltociear](https://github.com/eltociear))
- Add amalgamated json-fwd.hpp to release [\#3687](https://github.com/nlohmann/json/pull/3687) ([nlohmann](https://github.com/nlohmann))
- Documentation updates for 3.11.2 [\#3686](https://github.com/nlohmann/json/pull/3686) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Make json\_pointer usable as map key \(again\) [\#3685](https://github.com/nlohmann/json/pull/3685) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Deprecate json\_pointer/string\_t comparisons [\#3684](https://github.com/nlohmann/json/pull/3684) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Restructure inline namespace and allow version component to be disabled [\#3683](https://github.com/nlohmann/json/pull/3683) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Properly constrain non-string json\_pointer overloads [\#3681](https://github.com/nlohmann/json/pull/3681) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Amalgamate the forward declaration header [\#3679](https://github.com/nlohmann/json/pull/3679) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix 'const' qualifier on bool& has no effect [\#3678](https://github.com/nlohmann/json/pull/3678) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix whitespace in workflow files [\#3675](https://github.com/nlohmann/json/pull/3675) ([nlohmann](https://github.com/nlohmann))
- Attempt to fix labeler permissions [\#3674](https://github.com/nlohmann/json/pull/3674) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Refine 'Publish documentation' workflow [\#3673](https://github.com/nlohmann/json/pull/3673) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Documentation change [\#3672](https://github.com/nlohmann/json/pull/3672) ([nlohmann](https://github.com/nlohmann))
- Add labeler action [\#3671](https://github.com/nlohmann/json/pull/3671) ([nlohmann](https://github.com/nlohmann))
- Complete contributor list [\#3670](https://github.com/nlohmann/json/pull/3670) ([nlohmann](https://github.com/nlohmann))
- Add json\_pointer/string\_t equality comparison operators [\#3664](https://github.com/nlohmann/json/pull/3664) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Reimplement value\(\) access functions [\#3663](https://github.com/nlohmann/json/pull/3663) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Complete contributor list [\#3662](https://github.com/nlohmann/json/pull/3662) ([nlohmann](https://github.com/nlohmann))
- Adjust naming of GitHub action jobs [\#3661](https://github.com/nlohmann/json/pull/3661) ([nlohmann](https://github.com/nlohmann))
- Publish documentation on push to develop branch [\#3660](https://github.com/nlohmann/json/pull/3660) ([nlohmann](https://github.com/nlohmann))
- Add Discord badge to README [\#3651](https://github.com/nlohmann/json/pull/3651) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Miscellaneous small fixes [\#3643](https://github.com/nlohmann/json/pull/3643) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Minor BJData fixes [\#3637](https://github.com/nlohmann/json/pull/3637) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Update CI [\#3626](https://github.com/nlohmann/json/pull/3626) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
## [v3.11.1](https://github.com/nlohmann/json/releases/tag/v3.11.1) (2022-08-01)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.11.0...v3.11.1)
- Regression: no matching literal operator for call to 'operator""\_json' [\#3645](https://github.com/nlohmann/json/issues/3645)
- \_json operator""\(\) [\#3644](https://github.com/nlohmann/json/issues/3644)
- Fix global UDLs [\#3646](https://github.com/nlohmann/json/pull/3646) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
## [v3.11.0](https://github.com/nlohmann/json/releases/tag/v3.11.0) (2022-08-01)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.5...v3.11.0)
- ICPC: warning \#1098: the qualifier on this friend declaration is ignored [\#3632](https://github.com/nlohmann/json/issues/3632)
- Starting with 3.10.4, just adding `\#include json.hpp` causes compile error: `overload resolution selected deleted operator '=' [\#3620](https://github.com/nlohmann/json/issues/3620)
- xwidgets doesn't compile with version \>3.10.3 [\#3602](https://github.com/nlohmann/json/issues/3602)
- json\_pointer\_\_pop\_back.cpp example does not compile [\#3600](https://github.com/nlohmann/json/issues/3600)
- nlohmann::json::array 'push\_back' is ambiguous [\#3589](https://github.com/nlohmann/json/issues/3589)
- Multiple versions causing conflict [\#3588](https://github.com/nlohmann/json/issues/3588)
- ERROR: ThreadSanitizer: SEGV on unknown address [\#3584](https://github.com/nlohmann/json/issues/3584)
- unicode4 test consistently fails on RISC-V hardware [\#3579](https://github.com/nlohmann/json/issues/3579)
- sax\_parse\(iterator, json\_sax\_t \*\) string callback clobbers spaces [\#3574](https://github.com/nlohmann/json/issues/3574)
- Nlohmann JSON Parse crash with raylib-cpp [\#3570](https://github.com/nlohmann/json/issues/3570)
- ordered\_json doesn't accept keys of types other than string\_t \(e.g., string\_view\) [\#3558](https://github.com/nlohmann/json/issues/3558)
- turning an object into an array [\#3547](https://github.com/nlohmann/json/issues/3547)
- json:parse\_bjdata\_fuzzer: ASSERT: ref\_stack.back\(\)-\>is\_array\(\) [\#3541](https://github.com/nlohmann/json/issues/3541)
- Warning about potential null dereference in GCC 12.1 \(Fedora 36\) [\#3525](https://github.com/nlohmann/json/issues/3525)
- Enable 32bit unit test in CI [\#3524](https://github.com/nlohmann/json/issues/3524)
- Error when roundtripping BJData [\#3519](https://github.com/nlohmann/json/issues/3519)
- ASSERT error while parsing BJData [\#3513](https://github.com/nlohmann/json/issues/3513)
- An exception occurred when sending a string with double quotes [\#3504](https://github.com/nlohmann/json/issues/3504)
- Binary reader for BJData creates incorrect SAX events [\#3503](https://github.com/nlohmann/json/issues/3503)
- It can't support "nan", "inf", "-inf" for float type [\#3494](https://github.com/nlohmann/json/issues/3494)
- ASAN error while parsing BJData \(Heap-buffer-overflow READ 1\) [\#3492](https://github.com/nlohmann/json/issues/3492)
- UBSAN error while parsing BJData \(Null-dereference\) [\#3491](https://github.com/nlohmann/json/issues/3491)
- UBSAN error while parsing BJData \(Invalid-bool-value\) [\#3490](https://github.com/nlohmann/json/issues/3490)
- json:parse\_bjdata\_fuzzer reaches assertion [\#3475](https://github.com/nlohmann/json/issues/3475)
- Compilation with -fmodules-ts and use inside of a module [\#3472](https://github.com/nlohmann/json/issues/3472)
- json.exception.parse\_error.101 only occurs outside of IDE [\#3467](https://github.com/nlohmann/json/issues/3467)
- json:parse\_bjdata\_fuzzer reaches assertion [\#3461](https://github.com/nlohmann/json/issues/3461)
- NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE\_WITH\_DEFAULT can not parse { "key" : null} [\#3458](https://github.com/nlohmann/json/issues/3458)
- Unable to compile when using Microsoft's \_CRTDBG [\#3457](https://github.com/nlohmann/json/issues/3457)
- Compilation errors when including `<filesystem>` and using `--std=c++17` or above \(MinGW/Win10\) [\#3449](https://github.com/nlohmann/json/issues/3449)
- Weird things on for statement [\#3447](https://github.com/nlohmann/json/issues/3447)
- Parsing error when there is a json string within a Json [\#3445](https://github.com/nlohmann/json/issues/3445)
- ordered\_json vs json types comparison [\#3443](https://github.com/nlohmann/json/issues/3443)
- Error occurred when converting nlohmann::json to std::any [\#3428](https://github.com/nlohmann/json/issues/3428)
- I was forced to report an assertion error when copying an array of strings [\#3419](https://github.com/nlohmann/json/issues/3419)
- About Serialization Error invalid UTF-8 byte at index [\#3414](https://github.com/nlohmann/json/issues/3414)
- Comparison of NaN differs between json and float [\#3409](https://github.com/nlohmann/json/issues/3409)
- when i use it in C++ sserver,it it constantly show that fatal error: adl\_serializer.hpp: No such file or directory [\#3404](https://github.com/nlohmann/json/issues/3404)
- parse error [\#3403](https://github.com/nlohmann/json/issues/3403)
- CMake script MAIN\_PROJECT always OFF [\#3390](https://github.com/nlohmann/json/issues/3390)
- Parser unable to handle large floating point numbers [\#3389](https://github.com/nlohmann/json/issues/3389)
- Compilation error if json\_pointer is used with alternative string type [\#3388](https://github.com/nlohmann/json/issues/3388)
- Unit tests conversions & items fail to build \(Clang \<4.0/C++14 only\) [\#3384](https://github.com/nlohmann/json/issues/3384)
- Regression test for \#3070 is not being run and fails when enabled [\#3377](https://github.com/nlohmann/json/issues/3377)
- Refactor unit tests to use more convenient doctest assertion macros [\#3365](https://github.com/nlohmann/json/issues/3365)
- An json.h issue reported in a static code analyzer [\#3361](https://github.com/nlohmann/json/issues/3361)
- Mixing different JSON\_DIAGNOSTICS settings in separately compiled units leads to core [\#3360](https://github.com/nlohmann/json/issues/3360)
- json::out\_of\_range exception matches against lot of others while testing [\#3352](https://github.com/nlohmann/json/issues/3352)
- use mipsel-openwrt-linux-g++ -std=c++11 to compile, it has some errors "error: 'snprintf' is not a member of 'std'" [\#3349](https://github.com/nlohmann/json/issues/3349)
- Add proper issue templates [\#3348](https://github.com/nlohmann/json/issues/3348)
- switch from json to ordered\_json [\#3343](https://github.com/nlohmann/json/issues/3343)
- Json dump use to compilation errors [\#3339](https://github.com/nlohmann/json/issues/3339)
- Ambiguous conversion from nlohmann::basic\_json\<\> to custom class. [\#3333](https://github.com/nlohmann/json/issues/3333)
- Iterator doesn't satisfy std::incrementable because post-increment may change constness [\#3331](https://github.com/nlohmann/json/issues/3331)
- Inconsistent handling of floating point numbers after parse\(\) [\#3329](https://github.com/nlohmann/json/issues/3329)
- Documentation for `ordered_json` should show proper use of the `parse()` function. [\#3325](https://github.com/nlohmann/json/issues/3325)
- "type must be boolean, but is object" error thrown on non-boolean object [\#3319](https://github.com/nlohmann/json/issues/3319)
- Incomplete Type in request parms [\#3318](https://github.com/nlohmann/json/issues/3318)
- 小米 MIX4 MIUI13 bug [\#3316](https://github.com/nlohmann/json/issues/3316)
- json.exception.parse\_error.101 when parsing data received over a socket [\#3313](https://github.com/nlohmann/json/issues/3313)
- Parse to custom class from unordered\_json breaks on G++11.2.0 with C++20 [\#3312](https://github.com/nlohmann/json/issues/3312)
- try to assign dumped string to a class member varible [\#3300](https://github.com/nlohmann/json/issues/3300)
- includedir in pkgconfig is error if install\_headers\(\) has subdir argument. [\#3284](https://github.com/nlohmann/json/issues/3284)
- SHA-256 sum of json-3.10.5.tar.xz changes over time \(but not the content itself\) [\#3281](https://github.com/nlohmann/json/issues/3281)
- items\(\) method does not follow order of json message [\#3278](https://github.com/nlohmann/json/issues/3278)
- Perplexing template deduction failure serialising a 3rd party type using base class [\#3267](https://github.com/nlohmann/json/issues/3267)
- json.hpp 'isfinite' is not a member of 'std' also isinf; snprintf; stoull and to\_string members of std [\#3263](https://github.com/nlohmann/json/issues/3263)
- JSON build fails for C++ cmake [\#3256](https://github.com/nlohmann/json/issues/3256)
- Unexpected implicit conversion [\#3254](https://github.com/nlohmann/json/issues/3254)
- Add a function that checks for valid json in a C++ string [\#3245](https://github.com/nlohmann/json/issues/3245)
- Replace use of standard IO from error handling [\#3239](https://github.com/nlohmann/json/issues/3239)
- Use Catch for unit tests [\#3232](https://github.com/nlohmann/json/issues/3232)
- Exception thrown during initialization causes a memory leak [\#3215](https://github.com/nlohmann/json/issues/3215)
- Tests failing when compiling with c++20 [\#3207](https://github.com/nlohmann/json/issues/3207)
- ambiguous regression [\#3204](https://github.com/nlohmann/json/issues/3204)
- Deserialization: if class is\_constructible from std::string wrong from\_json overload is being selected, compilation failed [\#3171](https://github.com/nlohmann/json/issues/3171)
- 'clang++ ./json.hpp' with no usage: Compiler syntax problem in clang 3.7.0 \(tizen :/ \) [\#3153](https://github.com/nlohmann/json/issues/3153)
- build failure on upcoming gcc-12: test/src/unit-regression1.cpp:392:22: error: ambiguous overload for 'operator=' [\#3138](https://github.com/nlohmann/json/issues/3138)
- Applying JSON patch creates parent object [\#3134](https://github.com/nlohmann/json/issues/3134)
- Iterators cannot be used with range-v3 [\#3130](https://github.com/nlohmann/json/issues/3130)
- std::shared\_ptr\<T\> == nlohmann::json compiles, which seem undesirable [\#3026](https://github.com/nlohmann/json/issues/3026)
- Error in test\download\_test\_data.vcxproj custom build step when compiling with Visual Studio 2019 16.7.7 msbuild on Windows 10 [\#2593](https://github.com/nlohmann/json/issues/2593)
- Consider putting the user-defined literals in a namespace [\#1682](https://github.com/nlohmann/json/issues/1682)
- Using versioned namespaces [\#1539](https://github.com/nlohmann/json/issues/1539)
- How can I use std::string\_view as the json\_key to "operator \[\]" ? [\#1529](https://github.com/nlohmann/json/issues/1529)
- serialize std::variant\<...\> [\#1261](https://github.com/nlohmann/json/issues/1261)
- Prepare 3.11.0 release [\#3635](https://github.com/nlohmann/json/pull/3635) ([nlohmann](https://github.com/nlohmann))
- Fix warning [\#3634](https://github.com/nlohmann/json/pull/3634) ([nlohmann](https://github.com/nlohmann))
- Add license header to new files [\#3633](https://github.com/nlohmann/json/pull/3633) ([nlohmann](https://github.com/nlohmann))
- Add a unit test including windows.h [\#3631](https://github.com/nlohmann/json/pull/3631) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fixed latest build error in msvc platform [\#3630](https://github.com/nlohmann/json/pull/3630) ([Lioncky](https://github.com/Lioncky))
- Add regression tests for \#3204 and \#3333 [\#3629](https://github.com/nlohmann/json/pull/3629) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix patch::add creating nonexistent parents [\#3628](https://github.com/nlohmann/json/pull/3628) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Adjust JSON Pointer examples [\#3622](https://github.com/nlohmann/json/pull/3622) ([nlohmann](https://github.com/nlohmann))
- Disable exceptions on ICPC [\#3621](https://github.com/nlohmann/json/pull/3621) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- build: install .pc and .cmake files to share/ [\#3619](https://github.com/nlohmann/json/pull/3619) ([Tachi107](https://github.com/Tachi107))
- Fix MinGW CI failures [\#3618](https://github.com/nlohmann/json/pull/3618) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix Unicode test timeout \(for real this time!\) [\#3614](https://github.com/nlohmann/json/pull/3614) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Use 'concurrency' in GitHub workflows [\#3610](https://github.com/nlohmann/json/pull/3610) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Use swap\(\) by ADL [\#3609](https://github.com/nlohmann/json/pull/3609) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Move UDLs out of the global namespace [\#3605](https://github.com/nlohmann/json/pull/3605) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Re-add value\_type detection to distinguish string types [\#3604](https://github.com/nlohmann/json/pull/3604) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add operator\<\<\(json\_pointer\) [\#3601](https://github.com/nlohmann/json/pull/3601) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add documentation for comparing json and ordered\_json [\#3599](https://github.com/nlohmann/json/pull/3599) ([nlohmann](https://github.com/nlohmann))
- Clean up after \#3581 [\#3596](https://github.com/nlohmann/json/pull/3596) ([nlohmann](https://github.com/nlohmann))
- Add assertion if nullptr is passed to parse function [\#3593](https://github.com/nlohmann/json/pull/3593) ([nlohmann](https://github.com/nlohmann))
- Minor documentation fixes [\#3592](https://github.com/nlohmann/json/pull/3592) ([nlohmann](https://github.com/nlohmann))
- Add versioned, ABI-tagged inline namespace and namespace macros [\#3590](https://github.com/nlohmann/json/pull/3590) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add badge for https://repology.org/project/nlohmann-json/versions [\#3586](https://github.com/nlohmann/json/pull/3586) ([nlohmann](https://github.com/nlohmann))
- Add error message if test suite cannot be found [\#3585](https://github.com/nlohmann/json/pull/3585) ([nlohmann](https://github.com/nlohmann))
- add patch\_inplace function [\#3581](https://github.com/nlohmann/json/pull/3581) ([wolfv](https://github.com/wolfv))
- Enable overriding test properties and set Unicode test timeouts [\#3580](https://github.com/nlohmann/json/pull/3580) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Ignore output directory [\#3572](https://github.com/nlohmann/json/pull/3572) ([NN---](https://github.com/NN---))
- Optimize output vector adapter write [\#3569](https://github.com/nlohmann/json/pull/3569) ([romainreignier](https://github.com/romainreignier))
- Add overloads for more key types to ordered\_map and fix ordered\_map::erase\(first, last\) with first == last [\#3564](https://github.com/nlohmann/json/pull/3564) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Make certain usage patterns more prominent in the README [\#3557](https://github.com/nlohmann/json/pull/3557) ([jez](https://github.com/jez))
- CI: fix "JSON\_MultipleHeaders" option spelling [\#3555](https://github.com/nlohmann/json/pull/3555) ([karzhenkov](https://github.com/karzhenkov))
- More documentation updates for 3.11.0 [\#3553](https://github.com/nlohmann/json/pull/3553) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Use DOCTEST\_\* compiler macros and suppress pragmas warning [\#3550](https://github.com/nlohmann/json/pull/3550) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add unit test to make sure iterator\_input\_adapter advances iterators correctly [\#3548](https://github.com/nlohmann/json/pull/3548) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Use REUSE framework [\#3546](https://github.com/nlohmann/json/pull/3546) ([nlohmann](https://github.com/nlohmann))
- Use `std::iterator_traits` to extract `iterator_category` [\#3544](https://github.com/nlohmann/json/pull/3544) ([Mike-Leo-Smith](https://github.com/Mike-Leo-Smith))
- BJData dimension length can not be string\_t::npos, fix \#3541 [\#3543](https://github.com/nlohmann/json/pull/3543) ([fangq](https://github.com/fangq))
- Allow disabling default enum conversions [\#3536](https://github.com/nlohmann/json/pull/3536) ([richardhozak](https://github.com/richardhozak))
- Add to\_json\(\) for std::vector\<bool\>::reference [\#3534](https://github.com/nlohmann/json/pull/3534) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- CI: Enable 32bit unit test \(3\) [\#3532](https://github.com/nlohmann/json/pull/3532) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Use new CI image [\#3528](https://github.com/nlohmann/json/pull/3528) ([nlohmann](https://github.com/nlohmann))
- Fix ndarray dimension signedness, fix ndarray length overflow \(2\); add 32bit unit test [\#3523](https://github.com/nlohmann/json/pull/3523) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Small documentation fixes [\#3520](https://github.com/nlohmann/json/pull/3520) ([nlohmann](https://github.com/nlohmann))
- Add assertion to converting constructor [\#3517](https://github.com/nlohmann/json/pull/3517) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- CI: Remove -Wstrict-overflow [\#3516](https://github.com/nlohmann/json/pull/3516) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix nlohmann/json\#3513, explain is\_ndarray flag [\#3514](https://github.com/nlohmann/json/pull/3514) ([fangq](https://github.com/fangq))
- Prevent ndarray size vector from recursive use, fix nlohmann/json\#3503 [\#3505](https://github.com/nlohmann/json/pull/3505) ([fangq](https://github.com/fangq))
- prevent ndarray dimension vector from recusive array, nlohmann/json\#3500 [\#3502](https://github.com/nlohmann/json/pull/3502) ([fangq](https://github.com/fangq))
- Discard optimized containers with negative counts in UBJSON/BJData \(\#3491,\#3492,\#3490\) [\#3500](https://github.com/nlohmann/json/pull/3500) ([fangq](https://github.com/fangq))
- Update json.hpp [\#3499](https://github.com/nlohmann/json/pull/3499) ([ivanovmp](https://github.com/ivanovmp))
- Add assertion for invariant in SAX-DOM parser [\#3498](https://github.com/nlohmann/json/pull/3498) ([nlohmann](https://github.com/nlohmann))
- Add more macOS builders [\#3485](https://github.com/nlohmann/json/pull/3485) ([nlohmann](https://github.com/nlohmann))
- change bjdata ndarray flag to detect negative size, as part of \#3475 [\#3479](https://github.com/nlohmann/json/pull/3479) ([fangq](https://github.com/fangq))
- Document fuzzer usage [\#3478](https://github.com/nlohmann/json/pull/3478) ([nlohmann](https://github.com/nlohmann))
- Add build step for ICPC \(with fixes\) [\#3465](https://github.com/nlohmann/json/pull/3465) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Complete documentation for 3.11.0 [\#3464](https://github.com/nlohmann/json/pull/3464) ([nlohmann](https://github.com/nlohmann))
- Handle invalid BJData optimized type, fix \#3461 [\#3463](https://github.com/nlohmann/json/pull/3463) ([fangq](https://github.com/fangq))
- Reorganize directories [\#3462](https://github.com/nlohmann/json/pull/3462) ([nlohmann](https://github.com/nlohmann))
- Enable rapid testing and development on Compiler Explorer [\#3456](https://github.com/nlohmann/json/pull/3456) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- cpplint 1.6.0 [\#3454](https://github.com/nlohmann/json/pull/3454) ([nlohmann](https://github.com/nlohmann))
- Disable regression test for \#3070 on GCC \<8.4 [\#3451](https://github.com/nlohmann/json/pull/3451) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix C++20/gcc-12 issues \(Part 2\) [\#3446](https://github.com/nlohmann/json/pull/3446) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Overwork documentation [\#3444](https://github.com/nlohmann/json/pull/3444) ([nlohmann](https://github.com/nlohmann))
- Fix typo in basic\_json documentation [\#3439](https://github.com/nlohmann/json/pull/3439) ([jhnlee](https://github.com/jhnlee))
- Exclude std::any from implicit conversion \(fixes \#3428\) [\#3437](https://github.com/nlohmann/json/pull/3437) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Document which version introduced the macros [\#3431](https://github.com/nlohmann/json/pull/3431) ([nlohmann](https://github.com/nlohmann))
- Fix constraints on from\_json\(\) for strings \(fixes \#3171, \#3267, \#3312, \#3384\) [\#3427](https://github.com/nlohmann/json/pull/3427) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- at.md: fix typo [\#3426](https://github.com/nlohmann/json/pull/3426) ([heinemml](https://github.com/heinemml))
- Implement support for string\_view \(attempt no. 3\) [\#3423](https://github.com/nlohmann/json/pull/3423) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- CI: speedup AppVeyor builds by ~30% [\#3422](https://github.com/nlohmann/json/pull/3422) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Restore disabled check for \#3070 \(except on MSVC\) [\#3421](https://github.com/nlohmann/json/pull/3421) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Update CI image [\#3420](https://github.com/nlohmann/json/pull/3420) ([nlohmann](https://github.com/nlohmann))
- Add check if different version is also included [\#3418](https://github.com/nlohmann/json/pull/3418) ([nlohmann](https://github.com/nlohmann))
- Report the right \_\_cplusplus value for MSVC in basic\_json meta\(\) [\#3417](https://github.com/nlohmann/json/pull/3417) ([flagarde](https://github.com/flagarde))
- CI: windows-2016 has been deprecated; remove jobs [\#3416](https://github.com/nlohmann/json/pull/3416) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Re-template json\_pointer on string type [\#3415](https://github.com/nlohmann/json/pull/3415) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Refactor unit tests to use more convenient doctest assertion macros \(Part 2\) [\#3405](https://github.com/nlohmann/json/pull/3405) ([kkarbowiak](https://github.com/kkarbowiak))
- Refactor unit tests to use more convenient doctest assertion macros [\#3393](https://github.com/nlohmann/json/pull/3393) ([kkarbowiak](https://github.com/kkarbowiak))
- Improve unit testing \(Part 1\) [\#3380](https://github.com/nlohmann/json/pull/3380) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix C++20/gcc-12 issues \(Part 1\) [\#3379](https://github.com/nlohmann/json/pull/3379) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add clarification to avoid misunderstanding that cause \#3360 [\#3378](https://github.com/nlohmann/json/pull/3378) ([puffetto](https://github.com/puffetto))
- Fix ordered\_map ctor with initializer\_list \(fixes \#3343\) [\#3370](https://github.com/nlohmann/json/pull/3370) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Fix and update CI [\#3368](https://github.com/nlohmann/json/pull/3368) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- FetchContent\_MakeAvailable [\#3351](https://github.com/nlohmann/json/pull/3351) ([nlohmann](https://github.com/nlohmann))
- Avoid clash with Arduino defines [\#3338](https://github.com/nlohmann/json/pull/3338) ([DarkZeros](https://github.com/DarkZeros))
- Support UBJSON-derived Binary JData \(BJData\) format [\#3336](https://github.com/nlohmann/json/pull/3336) ([fangq](https://github.com/fangq))
- Make iterator operator++/--\(int\) equality-preserving [\#3332](https://github.com/nlohmann/json/pull/3332) ([falbrechtskirchinger](https://github.com/falbrechtskirchinger))
- Add note on parsing ordered\_json [\#3326](https://github.com/nlohmann/json/pull/3326) ([nlohmann](https://github.com/nlohmann))
- Fix CITATION.cff and add automatic validation of your citation metadata [\#3320](https://github.com/nlohmann/json/pull/3320) ([fdiblen](https://github.com/fdiblen))
- .github/workflows/windows.yml: Add support for Visual Studio 2022 [\#3295](https://github.com/nlohmann/json/pull/3295) ([t-b](https://github.com/t-b))
- Add maintainer targets to create source archive [\#3289](https://github.com/nlohmann/json/pull/3289) ([nlohmann](https://github.com/nlohmann))
- Fix a typo [\#3265](https://github.com/nlohmann/json/pull/3265) ([fhuberts](https://github.com/fhuberts))
- Fix typo [\#3249](https://github.com/nlohmann/json/pull/3249) ([rex4539](https://github.com/rex4539))
- Add documentation for JSON Lines [\#3247](https://github.com/nlohmann/json/pull/3247) ([nlohmann](https://github.com/nlohmann))
- Improve documentation InputType and IteratorType [\#3246](https://github.com/nlohmann/json/pull/3246) ([nlohmann](https://github.com/nlohmann))
- Remove stringstream [\#3244](https://github.com/nlohmann/json/pull/3244) ([nlohmann](https://github.com/nlohmann))
- fix \_MSC\_VER version to check for std::filesystem [\#3240](https://github.com/nlohmann/json/pull/3240) ([gcerretani](https://github.com/gcerretani))
- Add macros NLOHMANN\_DEFINE\_TYPE\_INTRUSIVE\_WITH\_DEFAULT and ...\_NON\_INTRUSIVE\_WITH\_DEFAULT [\#3143](https://github.com/nlohmann/json/pull/3143) ([pketelsen](https://github.com/pketelsen))
## [v3.10.5](https://github.com/nlohmann/json/releases/tag/v3.10.5) (2022-01-03)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.4...v3.10.5)
- \#include \<filesystem\> doesn't work with gcc-7 when `-std=c++17` is specified. [\#3203](https://github.com/nlohmann/json/issues/3203)
- Not able to use nlohmann json with c++ code built using emscripten to wasm [\#3200](https://github.com/nlohmann/json/issues/3200)
- Warning for shadowed variables [\#3188](https://github.com/nlohmann/json/issues/3188)
- Accessing missing keys on const json object leads to assert [\#3183](https://github.com/nlohmann/json/issues/3183)
- Data member is available, but null is reported, and program throws error [\#3173](https://github.com/nlohmann/json/issues/3173)
- serialization problem, from\_json need construct new object [\#3169](https://github.com/nlohmann/json/issues/3169)
- std::filesystem unavailable on macOS lower deployment targets [\#3156](https://github.com/nlohmann/json/issues/3156)
- \[json.exception.type\_error.305\] cannot use operator\[\] with a string argument with string [\#3151](https://github.com/nlohmann/json/issues/3151)
- json::dump\(\) is not compatible with C++ standards [\#3147](https://github.com/nlohmann/json/issues/3147)
- Issue with json::parse decoding codepoints [\#3142](https://github.com/nlohmann/json/issues/3142)
- Simple parse of json object thinks it should be an array [\#3136](https://github.com/nlohmann/json/issues/3136)
- How to properly read a Json string that may be null in some cases? [\#3135](https://github.com/nlohmann/json/issues/3135)
- Deadlock on create json - windows only [\#3129](https://github.com/nlohmann/json/issues/3129)
- Wrong parsing of int64 values nearest of limit [\#3126](https://github.com/nlohmann/json/issues/3126)
- ordered\_json doesn't support range based erase [\#3108](https://github.com/nlohmann/json/issues/3108)
- Apple build failed with json/single\_include/nlohmann/json.hpp:4384:57: 'path' is unavailable [\#3097](https://github.com/nlohmann/json/issues/3097)
- GCC 7.5.0 with --std=c++17: filesystem: No such file or directory [\#3090](https://github.com/nlohmann/json/issues/3090)
- Drop Travis CI [\#3087](https://github.com/nlohmann/json/issues/3087)
- ordered\_json::reset\(\) compile error with nvcc [\#3013](https://github.com/nlohmann/json/issues/3013)
- Support for unordered\_map as object\_t [\#2932](https://github.com/nlohmann/json/issues/2932)
- Compiler warning with Intel compiler, same as \#755 [\#2712](https://github.com/nlohmann/json/issues/2712)
- Compiler warnings with NVCC 11.2 [\#2676](https://github.com/nlohmann/json/issues/2676)
- some static analysis warning at line 11317 [\#1390](https://github.com/nlohmann/json/issues/1390)
- Compiling with icpc [\#755](https://github.com/nlohmann/json/issues/755)
- Fix compilation error with NVCC [\#3234](https://github.com/nlohmann/json/pull/3234) ([nlohmann](https://github.com/nlohmann))
- Remove Travis CI [\#3233](https://github.com/nlohmann/json/pull/3233) ([nlohmann](https://github.com/nlohmann))
- Add build step for NVCC and fix a warning [\#3227](https://github.com/nlohmann/json/pull/3227) ([nlohmann](https://github.com/nlohmann))
- Update cpplint [\#3225](https://github.com/nlohmann/json/pull/3225) ([nlohmann](https://github.com/nlohmann))
- Fix: Warning for shadowed variables \(\#3188\) [\#3193](https://github.com/nlohmann/json/pull/3193) ([kernie](https://github.com/kernie))
- Fix FAQ hyperlink typo in readme [\#3148](https://github.com/nlohmann/json/pull/3148) ([Prince-Mendiratta](https://github.com/Prince-Mendiratta))
- Docs: Update `skip_comments` to `ignore_comments` [\#3145](https://github.com/nlohmann/json/pull/3145) ([daniel-kun](https://github.com/daniel-kun))
- fix typos in documentation [\#3140](https://github.com/nlohmann/json/pull/3140) ([striezel](https://github.com/striezel))
- Fix spelling [\#3125](https://github.com/nlohmann/json/pull/3125) ([axic](https://github.com/axic))
- Extend std specializations [\#3121](https://github.com/nlohmann/json/pull/3121) ([nlohmann](https://github.com/nlohmann))
- Add missing erase\(first, last\) function to ordered\_map [\#3109](https://github.com/nlohmann/json/pull/3109) ([nlohmann](https://github.com/nlohmann))
- Fix typos in operator\[\] documentation [\#3102](https://github.com/nlohmann/json/pull/3102) ([axnsan12](https://github.com/axnsan12))
- Add C++17 copies of the test binaries [\#3101](https://github.com/nlohmann/json/pull/3101) ([nlohmann](https://github.com/nlohmann))
- Add examples for parsing from iterator pair [\#3100](https://github.com/nlohmann/json/pull/3100) ([nlohmann](https://github.com/nlohmann))
- Update CI [\#3088](https://github.com/nlohmann/json/pull/3088) ([nlohmann](https://github.com/nlohmann))
- Consolidate documentation [\#3071](https://github.com/nlohmann/json/pull/3071) ([nlohmann](https://github.com/nlohmann))
- Add recursive update function [\#3069](https://github.com/nlohmann/json/pull/3069) ([nlohmann](https://github.com/nlohmann))
## [v3.10.4](https://github.com/nlohmann/json/releases/tag/v3.10.4) (2021-10-16)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.3...v3.10.4)
- Compiler error in output serializer due to 'incompatible initializer' [\#3081](https://github.com/nlohmann/json/issues/3081)
- Strange behaviour when using std::sort on std::vector\<json\> [\#3080](https://github.com/nlohmann/json/issues/3080)
- Unhandled exception: nlohmann::detail::parse\_error [\#3078](https://github.com/nlohmann/json/issues/3078)
- explicit constructor with default does not compile [\#3077](https://github.com/nlohmann/json/issues/3077)
- Parse an object but get an array using GCC [\#3076](https://github.com/nlohmann/json/issues/3076)
- Version 3.10.3 breaks backward-compatibility with 3.10.2 [\#3070](https://github.com/nlohmann/json/issues/3070)
- Feature request, Add to\_json/from\_json to align with other to/from binary api. [\#3067](https://github.com/nlohmann/json/issues/3067)
- vcpkg is out of date [\#3066](https://github.com/nlohmann/json/issues/3066)
- Revert invalid fix [\#3082](https://github.com/nlohmann/json/pull/3082) ([nlohmann](https://github.com/nlohmann))
- Allow to use get with explicit constructor [\#3079](https://github.com/nlohmann/json/pull/3079) ([nlohmann](https://github.com/nlohmann))
- fix std::filesystem::path regression [\#3073](https://github.com/nlohmann/json/pull/3073) ([theodelrieu](https://github.com/theodelrieu))
## [v3.10.3](https://github.com/nlohmann/json/releases/tag/v3.10.3) (2021-10-08)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.2...v3.10.3)
- Parsing an emtpy string returns a string with size 1 instead of expected 0 [\#3057](https://github.com/nlohmann/json/issues/3057)
- Linking error "duplicate symbol: std::type\_info::operator==" on static build with MinGW [\#3042](https://github.com/nlohmann/json/issues/3042)
- Yet another assertion failure when inserting into arrays with JSON\_DIAGNOSTICS set [\#3032](https://github.com/nlohmann/json/issues/3032)
- accept and parse function not work well with a pure number string [\#3029](https://github.com/nlohmann/json/issues/3029)
- push\_back doesn't work for serializing containers [\#3027](https://github.com/nlohmann/json/issues/3027)
- Strange behaviour when creating array with single element [\#3025](https://github.com/nlohmann/json/issues/3025)
- Input ordered\_json doesn't work [\#3023](https://github.com/nlohmann/json/issues/3023)
- Issue iterating through 'items' [\#3021](https://github.com/nlohmann/json/issues/3021)
- Cannot spell the namespace right [\#3015](https://github.com/nlohmann/json/issues/3015)
- JSON Parse error when reading json object from file [\#3011](https://github.com/nlohmann/json/issues/3011)
- Parent pointer not properly set when using update\(\) [\#3007](https://github.com/nlohmann/json/issues/3007)
- Overwriting terminated null character [\#3001](https://github.com/nlohmann/json/issues/3001)
- 'operator =' is ambiguous on VS2017 [\#2997](https://github.com/nlohmann/json/issues/2997)
- JSON Patch for Array Elements [\#2994](https://github.com/nlohmann/json/issues/2994)
- JSON Parse throwing error [\#2983](https://github.com/nlohmann/json/issues/2983)
- to\_{binary format} does not provide a mechanism for specifying a custom allocator for the returned type. [\#2982](https://github.com/nlohmann/json/issues/2982)
- 3.10.1 zip json.hpp has version number 3.10.0 instead of 3.10.1 [\#2973](https://github.com/nlohmann/json/issues/2973)
- Assertion failure when serializing array with JSON\_DIAGNOSTICS set [\#2926](https://github.com/nlohmann/json/issues/2926)
- Fix Clang version [\#3040](https://github.com/nlohmann/json/pull/3040) ([nlohmann](https://github.com/nlohmann))
- Fix assertion failure for JSON\_DIAGNOSTICS [\#3037](https://github.com/nlohmann/json/pull/3037) ([carlsmedstad](https://github.com/carlsmedstad))
- meta: fix is\_compatible/constructible traits [\#3020](https://github.com/nlohmann/json/pull/3020) ([theodelrieu](https://github.com/theodelrieu))
- Set parent pointers for values inserted via update\(\) \(fixes \#3007\). [\#3008](https://github.com/nlohmann/json/pull/3008) ([AnthonyVH](https://github.com/AnthonyVH))
- Allow allocators for output\_vector\_adapter [\#2989](https://github.com/nlohmann/json/pull/2989) ([nlohmann](https://github.com/nlohmann))
- Re-add Clang 12 [\#2986](https://github.com/nlohmann/json/pull/2986) ([nlohmann](https://github.com/nlohmann))
- Use new Docker image [\#2981](https://github.com/nlohmann/json/pull/2981) ([nlohmann](https://github.com/nlohmann))
- Update docset generation script [\#2967](https://github.com/nlohmann/json/pull/2967) ([nlohmann](https://github.com/nlohmann))
## [v3.10.2](https://github.com/nlohmann/json/releases/tag/v3.10.2) (2021-08-26)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.1...v3.10.2)
- Annoying -Wundef on new JSON\_DIAGNOSTICS macro [\#2975](https://github.com/nlohmann/json/issues/2975)
- += issue with multiple redirection. [\#2970](https://github.com/nlohmann/json/issues/2970)
- "incomplete type ‘nlohmann::detail::wide\_string\_input\_helper" compilation error [\#2969](https://github.com/nlohmann/json/issues/2969)
- Fix -Wunused warnings on JSON\_DIAGNOSTICS [\#2976](https://github.com/nlohmann/json/pull/2976) ([gcerretani](https://github.com/gcerretani))
## [v3.10.1](https://github.com/nlohmann/json/releases/tag/v3.10.1) (2021-08-24)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.10.0...v3.10.1)
- JSON\_DIAGNOSTICS assertion for ordered\_json [\#2962](https://github.com/nlohmann/json/issues/2962)
- Inserting in unordered json using a pointer retains the leading slash [\#2958](https://github.com/nlohmann/json/issues/2958)
- Test \#9: test-cbor test case sample.json fails in debug mode - Stack overflow [\#2955](https://github.com/nlohmann/json/issues/2955)
- 3.10.0 broke at least the Bear project [\#2953](https://github.com/nlohmann/json/issues/2953)
- 2 tests fail in 3.10.0: cmake\_fetch\_content\_configure, cmake\_fetch\_content\_build [\#2951](https://github.com/nlohmann/json/issues/2951)
- ctest \(58+60,/67 cmake\_import\_configure\) fails when build with -D JSON\_Install:BOOL=OFF because of missing nlohmann\_jsonTargets.cmake [\#2946](https://github.com/nlohmann/json/issues/2946)
- Document vcpkg usage [\#2944](https://github.com/nlohmann/json/issues/2944)
- Linker error LNK2005 when compiling \(x64\) json-3.10.0.zip with Visual Studio 2019 16.11.1 [\#2941](https://github.com/nlohmann/json/issues/2941)
- Move Travis jobs to travis-ci.com [\#2938](https://github.com/nlohmann/json/issues/2938)
- Fixed typo in docs/api/basic\_json/parse.md [\#2968](https://github.com/nlohmann/json/pull/2968) ([mbadhan](https://github.com/mbadhan))
- Add link to Homebrew package [\#2966](https://github.com/nlohmann/json/pull/2966) ([nlohmann](https://github.com/nlohmann))
- Fix parent update for diagnostics with ordered\_json [\#2963](https://github.com/nlohmann/json/pull/2963) ([nlohmann](https://github.com/nlohmann))
- Set stack size for some unit tests when using MSVC [\#2961](https://github.com/nlohmann/json/pull/2961) ([nlohmann](https://github.com/nlohmann))
- Add regression test [\#2960](https://github.com/nlohmann/json/pull/2960) ([nlohmann](https://github.com/nlohmann))
- Update Travis badge [\#2959](https://github.com/nlohmann/json/pull/2959) ([nlohmann](https://github.com/nlohmann))
- Fix some extra ";" clang warnings [\#2957](https://github.com/nlohmann/json/pull/2957) ([Hallot](https://github.com/Hallot))
- Add documentation for integration via vcpkg [\#2954](https://github.com/nlohmann/json/pull/2954) ([nlohmann](https://github.com/nlohmann))
- Avoid duplicate AppVeyor builds [\#2952](https://github.com/nlohmann/json/pull/2952) ([nlohmann](https://github.com/nlohmann))
- 🚨 fix gdb\_pretty\_printer failure on basic types [\#2950](https://github.com/nlohmann/json/pull/2950) ([senyai](https://github.com/senyai))
- Add header to use value\_t [\#2948](https://github.com/nlohmann/json/pull/2948) ([nlohmann](https://github.com/nlohmann))
- Skip some tests if JSON\_Install is not set [\#2947](https://github.com/nlohmann/json/pull/2947) ([nlohmann](https://github.com/nlohmann))
- Remove outdated json\_unit test binary [\#2945](https://github.com/nlohmann/json/pull/2945) ([nlohmann](https://github.com/nlohmann))
- Updating the Homebrew Command [\#2943](https://github.com/nlohmann/json/pull/2943) ([amirmasoudabdol](https://github.com/amirmasoudabdol))
## [v3.10.0](https://github.com/nlohmann/json/releases/tag/v3.10.0) (2021-08-17)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.9.1...v3.10.0)
- Latest version 3.9.1 uses throw instead of JSON\_THROW in the amalgamated json.hpp file [\#2934](https://github.com/nlohmann/json/issues/2934)
- Copy to a variable inside a Structure [\#2933](https://github.com/nlohmann/json/issues/2933)
- warning C4068: unknown pragma 'GCC' on MSVC/cl [\#2924](https://github.com/nlohmann/json/issues/2924)
- Errors during ninja test [\#2918](https://github.com/nlohmann/json/issues/2918)
- compiler warning: "not return a value" [\#2917](https://github.com/nlohmann/json/issues/2917)
- Comparison floating points causes warning [\#2909](https://github.com/nlohmann/json/issues/2909)
- Why can't I have std::vector\<json&\> testList? [\#2900](https://github.com/nlohmann/json/issues/2900)
- \[json.hpp\] from releases doesnt work [\#2897](https://github.com/nlohmann/json/issues/2897)
- g++ \(11\) -Wuseless-cast gives lots of warnings [\#2893](https://github.com/nlohmann/json/issues/2893)
- Cannot serialize and immediatly deserialize json to/from bson [\#2892](https://github.com/nlohmann/json/issues/2892)
- Floating-point precision conversion error [\#2876](https://github.com/nlohmann/json/issues/2876)
- How to avoid escaping for an already escaped string in .dump\(\) [\#2870](https://github.com/nlohmann/json/issues/2870)
- can't parse std::vector\<std::byte\> [\#2869](https://github.com/nlohmann/json/issues/2869)
- ASAN detects memory leaks [\#2865](https://github.com/nlohmann/json/issues/2865)
- Binary subtype field cannot represent all CBOR tags [\#2863](https://github.com/nlohmann/json/issues/2863)
- string literals possibly being parsed as another type due to the presence of only digits and full-stops [\#2852](https://github.com/nlohmann/json/issues/2852)
- json::parse\(\) works only with absolute paths [\#2851](https://github.com/nlohmann/json/issues/2851)
- Compiler Warnings on Raspberry Pi OS [\#2850](https://github.com/nlohmann/json/issues/2850)
- Braced initialization and aggregate initialization behavior is different for `json::array()` function call. [\#2848](https://github.com/nlohmann/json/issues/2848)
- 3.9.1: test suite is failing [\#2845](https://github.com/nlohmann/json/issues/2845)
- Documentation for macro JSON\_NO\_IO is missing [\#2842](https://github.com/nlohmann/json/issues/2842)
- Assertion failure when inserting into arrays with JSON\_DIAGNOSTICS set [\#2838](https://github.com/nlohmann/json/issues/2838)
- HELP! There is a memory leak in the code?! [\#2837](https://github.com/nlohmann/json/issues/2837)
- Elegant conversion of a 2-D-json array to a standard C++ array [\#2805](https://github.com/nlohmann/json/issues/2805)
- Swift Package Manager support [\#2802](https://github.com/nlohmann/json/issues/2802)
- Referencing a subkey which doesn't exist gives crash [\#2797](https://github.com/nlohmann/json/issues/2797)
- Failed benchmark due to renamed branch [\#2796](https://github.com/nlohmann/json/issues/2796)
- Build Errors with VS 2019 and json Version 3.9.1 when attempting to replicate SAX Example [\#2782](https://github.com/nlohmann/json/issues/2782)
- Value with spaces cannot be parsed [\#2781](https://github.com/nlohmann/json/issues/2781)
- \[Question\] CBOR rfc support. [\#2779](https://github.com/nlohmann/json/issues/2779)
- Using JSON.hpp header file in Visual Studio 2013 \(C++ Project\) [\#2775](https://github.com/nlohmann/json/issues/2775)
- compilation error on clang-8 + C++17 [\#2759](https://github.com/nlohmann/json/issues/2759)
- Undefined symbol EOF [\#2755](https://github.com/nlohmann/json/issues/2755)
- Parsing a string into json object behaves differently under g++ and MinGW compilers. [\#2746](https://github.com/nlohmann/json/issues/2746)
- big git history size [\#2742](https://github.com/nlohmann/json/issues/2742)
- How to get reference of std::vector\<T\> [\#2735](https://github.com/nlohmann/json/issues/2735)
- CMake failure in VS2019 Community [\#2734](https://github.com/nlohmann/json/issues/2734)
- Possibility to use with custom c++ version to use in intel sgx enclaves [\#2730](https://github.com/nlohmann/json/issues/2730)
- Possibility to use without the dependency to file io and streams to use in intel sgx enclaves [\#2728](https://github.com/nlohmann/json/issues/2728)
- error C2784& error C2839... in my visual studio 2015 compiler [\#2726](https://github.com/nlohmann/json/issues/2726)
- `-fno-expection` not respected anymore in 3.9.1 [\#2725](https://github.com/nlohmann/json/issues/2725)
- When exceptions disabled with JSON\_NOEXCEPTION, lib just aborts without any message [\#2724](https://github.com/nlohmann/json/issues/2724)
- Critical error detected c0000374 on windows10 msvc 2019 16.8.5 [\#2710](https://github.com/nlohmann/json/issues/2710)
- unused parameter error/warning [\#2706](https://github.com/nlohmann/json/issues/2706)
- How to store data into a Map from json file [\#2691](https://github.com/nlohmann/json/issues/2691)
- Tests do not compile with pre-release glibc [\#2686](https://github.com/nlohmann/json/issues/2686)
- compile errors .... chromium-style [\#2680](https://github.com/nlohmann/json/issues/2680)
- .dump\(\) not allowing compact form [\#2678](https://github.com/nlohmann/json/issues/2678)
- error: no matching function for call to ‘nlohmann::basic\_json\<\>::value\(int, std::set\<int\>&\)’ [\#2671](https://github.com/nlohmann/json/issues/2671)
- Compiler warning: unused parameter [\#2668](https://github.com/nlohmann/json/issues/2668)
- Deserializing to a struct as shown on the project homepage throws compile time errors [\#2665](https://github.com/nlohmann/json/issues/2665)
- Unable to compile on MSVC 2019 with SDL checking enabled: This function or variable may be unsafe [\#2664](https://github.com/nlohmann/json/issues/2664)
- terminating with uncaught exception of type nlohmann::detail::type\_error: \[json.exception.type\_error.302\] type must be array, but is object [\#2661](https://github.com/nlohmann/json/issues/2661)
- unused-parameter on OSX when Diagnostics is off [\#2658](https://github.com/nlohmann/json/issues/2658)
- std::pair wrong serialization [\#2655](https://github.com/nlohmann/json/issues/2655)
- The result of json is\_number\_integer\(\) function is wrong when read a json file [\#2653](https://github.com/nlohmann/json/issues/2653)
- 2 backslash cause problem [\#2652](https://github.com/nlohmann/json/issues/2652)
- No support for using an external/system copy of Hedley [\#2651](https://github.com/nlohmann/json/issues/2651)
- error: incomplete type 'qfloat16' used in type trait expression [\#2650](https://github.com/nlohmann/json/issues/2650)
- Unused variable in exception class when not using improved diagnostics [\#2646](https://github.com/nlohmann/json/issues/2646)
- I am trying to do this - converting from wstring works incorrectly! [\#2642](https://github.com/nlohmann/json/issues/2642)
- Exception 207 On ARM Processor During Literal String Parsing [\#2634](https://github.com/nlohmann/json/issues/2634)
- double free or corruption \(!prev\) error on Json push\_back and write [\#2632](https://github.com/nlohmann/json/issues/2632)
- nlohmann::detail::parse\_error: syntax error while parsing CBOR string: expected length specification \(0x60-0x7B\) or indefinite string type \(0x7F\) [\#2629](https://github.com/nlohmann/json/issues/2629)
- please allow disabling implicit conversions in non-single-file use [\#2621](https://github.com/nlohmann/json/issues/2621)
- Preserve decimal formatting [\#2618](https://github.com/nlohmann/json/issues/2618)
- Visual Studio Visual Assist code issues reported by VA code inspection of file json.hpp [\#2615](https://github.com/nlohmann/json/issues/2615)
- Missing get function and no viable overloaded '=' on mac [\#2610](https://github.com/nlohmann/json/issues/2610)
- corruption when parse from string [\#2603](https://github.com/nlohmann/json/issues/2603)
- Parse from byte-vector results in compile error [\#2602](https://github.com/nlohmann/json/issues/2602)
- Memory leak when working on ARM Linux [\#2601](https://github.com/nlohmann/json/issues/2601)
- Unhandled exception in test-cbor.exe Stack overflow when debugging project with Visual Studio 2019 16.7.7 compiled with c++17 or c++latest [\#2598](https://github.com/nlohmann/json/issues/2598)
- Error in download\_test\_data.vcxproj when compiling with Visual Studio 2019 16.7.7 Professional msbuild on Windows 10 2004 Professional [\#2594](https://github.com/nlohmann/json/issues/2594)
- Warnings C4715 and C4127 when building json-3.9.1 with Visual Studio 2019 16.7.7 [\#2592](https://github.com/nlohmann/json/issues/2592)
- I tried some change to dump\(\) for \[1,2,3...\] [\#2584](https://github.com/nlohmann/json/issues/2584)
- try/catch block does not catch parsing error [\#2579](https://github.com/nlohmann/json/issues/2579)
- Serializing uint64\_t is broken for large values [\#2578](https://github.com/nlohmann/json/issues/2578)
- deserializing arrays should be part of the library [\#2575](https://github.com/nlohmann/json/issues/2575)
- Deserialization to std::array with non-default constructable types fails [\#2574](https://github.com/nlohmann/json/issues/2574)
- Compilation error when trying to use same type for number\_integer\_t and number\_unsigned\_t in basic\_json template specification. [\#2573](https://github.com/nlohmann/json/issues/2573)
- compiler error: directive output may be truncated writing between 2 and 8 bytes [\#2572](https://github.com/nlohmann/json/issues/2572)
- Incorrect convert map to json when key cannot construct an string i.e. int [\#2564](https://github.com/nlohmann/json/issues/2564)
- no matching function for call to ‘nlohmann::basic\_json\<\>::basic\_json\(\<brace-enclosed initializer list\>\)’ [\#2559](https://github.com/nlohmann/json/issues/2559)
- type\_error factory creates a dangling pointer \(in VisualStudio 2019\) [\#2535](https://github.com/nlohmann/json/issues/2535)
- Cannot assign from ordered\_json vector\<CustomStruct\> to value in not ordered json [\#2528](https://github.com/nlohmann/json/issues/2528)
- Qt6: Break changes [\#2519](https://github.com/nlohmann/json/issues/2519)
- valgrind memcheck Illegal instruction when use nlohmann::json::parse [\#2518](https://github.com/nlohmann/json/issues/2518)
- Buffer overflow [\#2515](https://github.com/nlohmann/json/issues/2515)
- Including CTest in the top-level CMakeLists.txt sets BUILD\_TESTING=ON for parent projects [\#2513](https://github.com/nlohmann/json/issues/2513)
- Compilation error when using NLOHMANN\_JSON\_SERIALIZE\_ENUM ordered\_json on libc++ [\#2491](https://github.com/nlohmann/json/issues/2491)
- Missing "void insert\( InputIt first, InputIt last \);" overload in nlohmann::ordered\_map [\#2490](https://github.com/nlohmann/json/issues/2490)
- Could not find a package configuration file provided by "nlohmann\_json" [\#2482](https://github.com/nlohmann/json/issues/2482)
- json becomes empty for unknown reason [\#2470](https://github.com/nlohmann/json/issues/2470)
- Using std::wstring as StringType fails compiling [\#2459](https://github.com/nlohmann/json/issues/2459)
- Sample code in GIF slide outdated \(cannot use emplace\(\) with array\) [\#2457](https://github.com/nlohmann/json/issues/2457)
- from\_json\<std::wstring\> is treated as an array on latest MSVC [\#2453](https://github.com/nlohmann/json/issues/2453)
- MemorySanitizer: use-of-uninitialized-value [\#2449](https://github.com/nlohmann/json/issues/2449)
- I need help [\#2441](https://github.com/nlohmann/json/issues/2441)
- type conversion failing with clang ext\_vector\_type [\#2436](https://github.com/nlohmann/json/issues/2436)
- json::parse\(\) can't be resolved under specific circumstances [\#2427](https://github.com/nlohmann/json/issues/2427)
- from\_\*\(ptr, len\) deprecation [\#2426](https://github.com/nlohmann/json/issues/2426)
- Error ONLY in release mode [\#2425](https://github.com/nlohmann/json/issues/2425)
- "Custom data source" exemple make no sense [\#2423](https://github.com/nlohmann/json/issues/2423)
- Refuses to compile in project [\#2419](https://github.com/nlohmann/json/issues/2419)
- Compilation failure of tests with C++20 standard \(caused by change of u8 literals\) [\#2413](https://github.com/nlohmann/json/issues/2413)
- No matching function for call to 'input\_adapter' under Xcode of with nlohmann version 3.9.1 [\#2412](https://github.com/nlohmann/json/issues/2412)
- Git tags are not valid semvers [\#2409](https://github.com/nlohmann/json/issues/2409)
- after dump, stderr output disappear [\#2403](https://github.com/nlohmann/json/issues/2403)
- Using custom string. [\#2398](https://github.com/nlohmann/json/issues/2398)
- value\(\) throws unhandled exception for partially specified json object [\#2393](https://github.com/nlohmann/json/issues/2393)
- assertion on runtime causes program to stop when accessing const json with missing key [\#2392](https://github.com/nlohmann/json/issues/2392)
- Usage with -fno-elide-constructors causes dump\(\) output to be array of `null`s [\#2387](https://github.com/nlohmann/json/issues/2387)
- Build fails with clang-cl due to override of CMAKE\_CXX\_COMPILER\(?\) [\#2384](https://github.com/nlohmann/json/issues/2384)
- std::optional not working with primitive types [\#2383](https://github.com/nlohmann/json/issues/2383)
- Unexpected array when initializing a json const& on gcc 4.8.5 using uniform syntax [\#2370](https://github.com/nlohmann/json/issues/2370)
- setprecision support [\#2362](https://github.com/nlohmann/json/issues/2362)
- json::parse\(allow\_exceptions = false\) documentation is misleading. [\#2360](https://github.com/nlohmann/json/issues/2360)
- std::begin and std::end usage without specifying std namespace [\#2359](https://github.com/nlohmann/json/issues/2359)
- Custom object conversion to json hangs in background thread [\#2358](https://github.com/nlohmann/json/issues/2358)
- Add support of nullable fields to NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE and NLOHMANN\_DEFINE\_TYPE\_INTRUSIVE [\#2356](https://github.com/nlohmann/json/issues/2356)
- the portfile for the vcpkg is not working. [\#2351](https://github.com/nlohmann/json/issues/2351)
- Compiler warns of implicit fallthrough when defining preprocessor macro NDEBUG [\#2348](https://github.com/nlohmann/json/issues/2348)
- Compile error on Intel compiler running in Windows [\#2346](https://github.com/nlohmann/json/issues/2346)
- Build error caused by overwriting CMAKE\_CXX\_COMPILER [\#2343](https://github.com/nlohmann/json/issues/2343)
- Error: an attribute list cannot appear here JSON\_HEDLEY\_DEPRECATED\_FOR [\#2342](https://github.com/nlohmann/json/issues/2342)
- compiler warning [\#2341](https://github.com/nlohmann/json/issues/2341)
- 3.9.0: tests make build non-reproducible [\#2324](https://github.com/nlohmann/json/issues/2324)
- Initialization different between gcc/clang [\#2311](https://github.com/nlohmann/json/issues/2311)
- Attempt to `get()` a numeric value as a type which cannot represent it should throw [\#2310](https://github.com/nlohmann/json/issues/2310)
- Surprising behaviour with overloaded operators [\#2256](https://github.com/nlohmann/json/issues/2256)
- ADL issue in input\_adapter [\#2248](https://github.com/nlohmann/json/issues/2248)
- Output adapters should be templated. [\#2172](https://github.com/nlohmann/json/issues/2172)
- error when using nlohmann::json, std::function and std::bind [\#2147](https://github.com/nlohmann/json/issues/2147)
- Remove undefined behavior for const operator\[\] [\#2111](https://github.com/nlohmann/json/issues/2111)
- json\({}\) gives null instead of empty object with GCC and -std=c++17 [\#2046](https://github.com/nlohmann/json/issues/2046)
- GDB pretty printing support [\#1952](https://github.com/nlohmann/json/issues/1952)
- Always compile tests with all warnings enabled and error out on warnings [\#1798](https://github.com/nlohmann/json/issues/1798)
- Fixes Cppcheck warnings [\#1759](https://github.com/nlohmann/json/issues/1759)
- How to get position info or parser context with custom from\_json\(\) that may throw exceptions? [\#1508](https://github.com/nlohmann/json/issues/1508)
- Suggestion to improve value\(\) accessors with respect to move semantics [\#1275](https://github.com/nlohmann/json/issues/1275)
- Add Key name to Exception [\#932](https://github.com/nlohmann/json/issues/932)
- Overwork warning flags [\#2936](https://github.com/nlohmann/json/pull/2936) ([nlohmann](https://github.com/nlohmann))
- Treat MSVC warnings as errors [\#2930](https://github.com/nlohmann/json/pull/2930) ([nlohmann](https://github.com/nlohmann))
- All: fix warnings when compiling with -Wswitch-enum [\#2927](https://github.com/nlohmann/json/pull/2927) ([fhuberts](https://github.com/fhuberts))
- Guard GCC pragmas [\#2925](https://github.com/nlohmann/json/pull/2925) ([nlohmann](https://github.com/nlohmann))
- Supress -Wfloat-equal on intended float comparisions [\#2911](https://github.com/nlohmann/json/pull/2911) ([Finkman](https://github.com/Finkman))
- Fix binary subtypes [\#2908](https://github.com/nlohmann/json/pull/2908) ([nlohmann](https://github.com/nlohmann))
- Fix useless-cast warnings [\#2902](https://github.com/nlohmann/json/pull/2902) ([nlohmann](https://github.com/nlohmann))
- Add regression test [\#2898](https://github.com/nlohmann/json/pull/2898) ([nlohmann](https://github.com/nlohmann))
- Refactor Unicode tests [\#2889](https://github.com/nlohmann/json/pull/2889) ([nlohmann](https://github.com/nlohmann))
- CMake cleanup [\#2885](https://github.com/nlohmann/json/pull/2885) ([nlohmann](https://github.com/nlohmann))
- Avoid string in case of empty CBOR objects [\#2879](https://github.com/nlohmann/json/pull/2879) ([nlohmann](https://github.com/nlohmann))
- Suppress C4127 warning in unit-json\_pointer.cpp [\#2875](https://github.com/nlohmann/json/pull/2875) ([nlohmann](https://github.com/nlohmann))
- Fix truncation warning [\#2874](https://github.com/nlohmann/json/pull/2874) ([nlohmann](https://github.com/nlohmann))
- Fix memory leak in to\_json [\#2872](https://github.com/nlohmann/json/pull/2872) ([nlohmann](https://github.com/nlohmann))
- Fix assertion failure in diagnostics [\#2866](https://github.com/nlohmann/json/pull/2866) ([nlohmann](https://github.com/nlohmann))
- Update documentation [\#2861](https://github.com/nlohmann/json/pull/2861) ([nlohmann](https://github.com/nlohmann))
- Consistency with `using` in README.md [\#2826](https://github.com/nlohmann/json/pull/2826) ([justanotheranonymoususer](https://github.com/justanotheranonymoususer))
- Properly constrain the basic\_json conversion operator [\#2825](https://github.com/nlohmann/json/pull/2825) ([ldionne](https://github.com/ldionne))
- Fix CI [\#2817](https://github.com/nlohmann/json/pull/2817) ([nlohmann](https://github.com/nlohmann))
- Specified git branch for google benchmark fetch in benchmark test [\#2795](https://github.com/nlohmann/json/pull/2795) ([grafail](https://github.com/grafail))
- Add C++ standards to macOS matrix [\#2790](https://github.com/nlohmann/json/pull/2790) ([nlohmann](https://github.com/nlohmann))
- Update URLs to HTTPS [\#2789](https://github.com/nlohmann/json/pull/2789) ([TotalCaesar659](https://github.com/TotalCaesar659))
- Link to Conan Center package added [\#2771](https://github.com/nlohmann/json/pull/2771) ([offa](https://github.com/offa))
- Keep consistent formatting [\#2770](https://github.com/nlohmann/json/pull/2770) ([jasmcaus](https://github.com/jasmcaus))
- Add a cmake option to use SYSTEM in target\_include\_directories [\#2762](https://github.com/nlohmann/json/pull/2762) ([jpl-mac](https://github.com/jpl-mac))
- replace EOF with std::char\_traits\<char\>::eof\(\) [\#2756](https://github.com/nlohmann/json/pull/2756) ([nlohmann](https://github.com/nlohmann))
- Fix typo in README [\#2754](https://github.com/nlohmann/json/pull/2754) ([mortenfyhn](https://github.com/mortenfyhn))
- Update documentation [\#2749](https://github.com/nlohmann/json/pull/2749) ([nlohmann](https://github.com/nlohmann))
- Add documentation for numbers [\#2747](https://github.com/nlohmann/json/pull/2747) ([nlohmann](https://github.com/nlohmann))
- Use Clang 12 in CI [\#2737](https://github.com/nlohmann/json/pull/2737) ([nlohmann](https://github.com/nlohmann))
- Fixes \#2730 [\#2731](https://github.com/nlohmann/json/pull/2731) ([theShmoo](https://github.com/theShmoo))
- Possibility to use without the dependency to file io and streams to use in intel sgx enclaves [\#2729](https://github.com/nlohmann/json/pull/2729) ([theShmoo](https://github.com/theShmoo))
- Update json.hpp [\#2707](https://github.com/nlohmann/json/pull/2707) ([raduteo](https://github.com/raduteo))
- pkg-config.pc.in: Don't concatenate paths [\#2690](https://github.com/nlohmann/json/pull/2690) ([doronbehar](https://github.com/doronbehar))
- add more CI steps [\#2689](https://github.com/nlohmann/json/pull/2689) ([nlohmann](https://github.com/nlohmann))
- Update doctest from 2.4.4 to 2.4.6 \(fixes \#2686\) [\#2687](https://github.com/nlohmann/json/pull/2687) ([musicinmybrain](https://github.com/musicinmybrain))
- License fix [\#2683](https://github.com/nlohmann/json/pull/2683) ([nlohmann](https://github.com/nlohmann))
- Update parse\_exceptions.md - correct `json::exception::parse_error` [\#2679](https://github.com/nlohmann/json/pull/2679) ([frasermarlow](https://github.com/frasermarlow))
- Remove HEDLEY annotation from exception::what\(\) [\#2673](https://github.com/nlohmann/json/pull/2673) ([remyjette](https://github.com/remyjette))
- Fix amount of entries in the json object [\#2659](https://github.com/nlohmann/json/pull/2659) ([abbaswasim](https://github.com/abbaswasim))
- Fix missing 1.78 in example in README.md [\#2625](https://github.com/nlohmann/json/pull/2625) ([wawiesel](https://github.com/wawiesel))
- Add GDB pretty printer [\#2607](https://github.com/nlohmann/json/pull/2607) ([nlohmann](https://github.com/nlohmann))
- readme: fix tilde character display [\#2582](https://github.com/nlohmann/json/pull/2582) ([bl-ue](https://github.com/bl-ue))
- Add support for deserialization of STL containers of non-default constructable types \(fixes \#2574\). [\#2576](https://github.com/nlohmann/json/pull/2576) ([AnthonyVH](https://github.com/AnthonyVH))
- Better diagnostics [\#2562](https://github.com/nlohmann/json/pull/2562) ([nlohmann](https://github.com/nlohmann))
- CI targets [\#2561](https://github.com/nlohmann/json/pull/2561) ([nlohmann](https://github.com/nlohmann))
- Add switch to skip non-reproducible tests. [\#2560](https://github.com/nlohmann/json/pull/2560) ([nlohmann](https://github.com/nlohmann))
- Fix compilation of input\_adapter\(container\) in edge cases [\#2553](https://github.com/nlohmann/json/pull/2553) ([jasujm](https://github.com/jasujm))
- Allow parsing from std::byte containers [\#2550](https://github.com/nlohmann/json/pull/2550) ([nlohmann](https://github.com/nlohmann))
- Travis doesn't run any tests in C++17 mode [\#2540](https://github.com/nlohmann/json/pull/2540) ([karzhenkov](https://github.com/karzhenkov))
- Doctest is updated to v2.4.3 [\#2538](https://github.com/nlohmann/json/pull/2538) ([YarikTH](https://github.com/YarikTH))
- Fix warnings [\#2537](https://github.com/nlohmann/json/pull/2537) ([nlohmann](https://github.com/nlohmann))
- Fix a shadowing warning [\#2536](https://github.com/nlohmann/json/pull/2536) ([nlohmann](https://github.com/nlohmann))
- Clarify license of is\_complete\_type implementation [\#2534](https://github.com/nlohmann/json/pull/2534) ([nlohmann](https://github.com/nlohmann))
- Do not unconditionally redefine C++14 constructs [\#2533](https://github.com/nlohmann/json/pull/2533) ([nlohmann](https://github.com/nlohmann))
- Doctest is updated to v2.4.1 [\#2525](https://github.com/nlohmann/json/pull/2525) ([YarikTH](https://github.com/YarikTH))
- Add MAIN\_PROJECT check for test and install options [\#2514](https://github.com/nlohmann/json/pull/2514) ([globberwops](https://github.com/globberwops))
- Ranged insert test section is added in unit-ordered\_json.cpp [\#2512](https://github.com/nlohmann/json/pull/2512) ([YarikTH](https://github.com/YarikTH))
- Add asserts to suppress C28020 [\#2447](https://github.com/nlohmann/json/pull/2447) ([jbzdarkid](https://github.com/jbzdarkid))
- Change argument name "subtype" in byte\_container\_with\_subtype [\#2444](https://github.com/nlohmann/json/pull/2444) ([linev](https://github.com/linev))
- 📝 add CPM.Cmake example [\#2406](https://github.com/nlohmann/json/pull/2406) ([leozz37](https://github.com/leozz37))
- Fix move constructor of json\_ref [\#2405](https://github.com/nlohmann/json/pull/2405) ([karzhenkov](https://github.com/karzhenkov))
- Properly select "Release" build for Travis [\#2375](https://github.com/nlohmann/json/pull/2375) ([karzhenkov](https://github.com/karzhenkov))
- Update Hedley [\#2367](https://github.com/nlohmann/json/pull/2367) ([nlohmann](https://github.com/nlohmann))
- Fix and extend documentation of discarded values [\#2363](https://github.com/nlohmann/json/pull/2363) ([nlohmann](https://github.com/nlohmann))
- Fix typos in documentation [\#2354](https://github.com/nlohmann/json/pull/2354) ([rbuch](https://github.com/rbuch))
- Remove "\#define private public" from tests [\#2352](https://github.com/nlohmann/json/pull/2352) ([nlohmann](https://github.com/nlohmann))
- Remove -Wimplicit-fallthrough warning [\#2349](https://github.com/nlohmann/json/pull/2349) ([nlohmann](https://github.com/nlohmann))
- Fix code to work without exceptions [\#2347](https://github.com/nlohmann/json/pull/2347) ([nlohmann](https://github.com/nlohmann))
- fix cmake script overwriting compiler path [\#2344](https://github.com/nlohmann/json/pull/2344) ([ongjunjie](https://github.com/ongjunjie))
## [v3.9.1](https://github.com/nlohmann/json/releases/tag/v3.9.1) (2020-08-06)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.9.0...v3.9.1)
- Can't parse not formatted JSON. [\#2340](https://github.com/nlohmann/json/issues/2340)
- parse returns desired array contained in array when JSON text begins with square bracket on gcc 7.5.0 [\#2339](https://github.com/nlohmann/json/issues/2339)
- Unexpected deserialization difference between Mac and Linux [\#2338](https://github.com/nlohmann/json/issues/2338)
- Reading ordered\_json from file causes compile error [\#2331](https://github.com/nlohmann/json/issues/2331)
- ignore\_comment=true fails on multiple consecutive lines starting with comments [\#2330](https://github.com/nlohmann/json/issues/2330)
- Update documentation about Homebrew installation and CMake integration - Homebrew [\#2326](https://github.com/nlohmann/json/issues/2326)
- Chinese character initialize error [\#2325](https://github.com/nlohmann/json/issues/2325)
- json.update and vector\<pair\>does not work with ordered\_json [\#2315](https://github.com/nlohmann/json/issues/2315)
- Ambiguous call to overloaded function [\#2210](https://github.com/nlohmann/json/issues/2210)
- Fix fallthrough warning [\#2333](https://github.com/nlohmann/json/pull/2333) ([nlohmann](https://github.com/nlohmann))
- Fix lexer to properly cope with repeated comments [\#2332](https://github.com/nlohmann/json/pull/2332) ([nlohmann](https://github.com/nlohmann))
- Fix name of Homebrew formula in documentation [\#2327](https://github.com/nlohmann/json/pull/2327) ([nlohmann](https://github.com/nlohmann))
- fix typo [\#2320](https://github.com/nlohmann/json/pull/2320) ([wx257osn2](https://github.com/wx257osn2))
- Fix a bug due to missing overloads in ordered\_map container [\#2319](https://github.com/nlohmann/json/pull/2319) ([nlohmann](https://github.com/nlohmann))
- cmake: install pkg-config file relative to current\_binary\_dir [\#2318](https://github.com/nlohmann/json/pull/2318) ([eli-schwartz](https://github.com/eli-schwartz))
- Fixed installation of pkg-config file on other than Ubuntu [\#2314](https://github.com/nlohmann/json/pull/2314) ([xvitaly](https://github.com/xvitaly))
## [v3.9.0](https://github.com/nlohmann/json/releases/tag/v3.9.0) (2020-07-27)
[Full Changelog](https://github.com/nlohmann/json/compare/v3.8.0...v3.9.0)
- Unknown Type Name clang error when using NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE [\#2313](https://github.com/nlohmann/json/issues/2313)
- Clang 10.0 / GCC 10.1 warnings on disabled exceptions [\#2304](https://github.com/nlohmann/json/issues/2304)
- Application stalls indefinitely with message byte size 10 [\#2293](https://github.com/nlohmann/json/issues/2293)
- linker error [\#2292](https://github.com/nlohmann/json/issues/2292)
- Add support for high-precision numbers in UBJSON encoding [\#2286](https://github.com/nlohmann/json/issues/2286)
- NLOHMANN\_DEFINE\_TYPE\_NON\_INTRUSIVE fails if the length of the argument is 10 [\#2280](https://github.com/nlohmann/json/issues/2280)
- Custom types : MACRO expansion bug [\#2267](https://github.com/nlohmann/json/issues/2267)
- to/from\_json Failing To Convert String [\#2238](https://github.com/nlohmann/json/issues/2238)
- clang 9.0 report warning: unused type alias 'size\_type' \[-Wunused-local-typedef\] [\#2221](https://github.com/nlohmann/json/issues/2221)
- Enormous array created when working with map\<int,T\> [\#2220](https://github.com/nlohmann/json/issues/2220)
- Can I disable sorting of json values [\#2219](https://github.com/nlohmann/json/issues/2219)
- Getting Qt types to work [\#2217](https://github.com/nlohmann/json/issues/2217)
- Convert to Qt QVariant [\#2216](https://github.com/nlohmann/json/issues/2216)
- How to custom serialize same data type of vector? [\#2215](https://github.com/nlohmann/json/issues/2215)
- json constructor does not support std::optional [\#2214](https://github.com/nlohmann/json/issues/2214)
- Failing to Parse Valid JSON [\#2209](https://github.com/nlohmann/json/issues/2209)
- \(De-\)Serialization of std::variant with namespaces [\#2208](https://github.com/nlohmann/json/issues/2208)
- Addint support for complex type [\#2207](https://github.com/nlohmann/json/issues/2207)
- array\_index possible out of range [\#2205](https://github.com/nlohmann/json/issues/2205)
- Object deserialized as array [\#2204](https://github.com/nlohmann/json/issues/2204)
- Sending to a function a reference to a sub-branch [\#2200](https://github.com/nlohmann/json/issues/2200)
- JSON incorrectly serialized [\#2198](https://github.com/nlohmann/json/issues/2198)
- Exception Unhandled out\_of\_range error [\#2197](https://github.com/nlohmann/json/issues/2197)
- msgpack serialisation : float is treated as 64bit float, not 32bit float. [\#2196](https://github.com/nlohmann/json/issues/2196)
- Is it possible to use compile-time type guarantees for JSON structures? [\#2195](https://github.com/nlohmann/json/issues/2195)
- Question : performance against python dict [\#2194](https://github.com/nlohmann/json/issues/2194)
- vs2017 compile error [\#2192](https://github.com/nlohmann/json/issues/2192)
- Check if a key exists [\#2191](https://github.com/nlohmann/json/issues/2191)
- Failed to run tests due to missing test data on builders without Internet access [\#2190](https://github.com/nlohmann/json/issues/2190)
- 3.8.0: unit-cbor.cpp test failures [\#2189](https://github.com/nlohmann/json/issues/2189)
- 'nlohmann/json.hpp' file not found [\#2188](https://github.com/nlohmann/json/issues/2188)
- How to send json data over the wire? [\#2185](https://github.com/nlohmann/json/issues/2185)
- Ubuntu 16 not supporting nlohmann/json? [\#2184](https://github.com/nlohmann/json/issues/2184)
- .get\<std::string\> causing emdash errors [\#2180](https://github.com/nlohmann/json/issues/2180)
- Object properties should not be re-sorted alphabetically [\#2179](https://github.com/nlohmann/json/issues/2179)
- Custom type registration : instrusive API [\#2175](https://github.com/nlohmann/json/issues/2175)
- Many version of the function "void to\_json\(json& j, const MyStruct& struct\)" [\#2171](https://github.com/nlohmann/json/issues/2171)
- How should strings be escaped? [\#2155](https://github.com/nlohmann/json/issues/2155)
- Adding a value to an existing json puts it at the beginning instead of the end [\#2149](https://github.com/nlohmann/json/issues/2149)
- The header file is big, can we use what we need. [\#2134](https://github.com/nlohmann/json/issues/2134)
- Changing the default format for unordered\_map \(or other set\) [\#2132](https://github.com/nlohmann/json/issues/2132)
- Getting size of deserialized bson document [\#2131](https://github.com/nlohmann/json/issues/2131)
- implicit conversion failure [\#2128](https://github.com/nlohmann/json/issues/2128)
- Error thrown when parsing in a subclass [\#2124](https://github.com/nlohmann/json/issues/2124)
- explicit conversion to string not considered for std::map keys in GCC8 [\#2096](https://github.com/nlohmann/json/issues/2096)
- Add support for JSONC [\#2061](https://github.com/nlohmann/json/issues/2061)
- Library provides template arg for string\_type but assumes std::string in some places [\#2059](https://github.com/nlohmann/json/issues/2059)
- incremental parsing with sax\_parser [\#2030](https://github.com/nlohmann/json/issues/2030)
- Question about flatten and unflatten [\#1989](https://github.com/nlohmann/json/issues/1989)