Changelog

All notable changes to this fork are documented here. The format follows Keep a Changelog; this fork continues from upstream taganaka/SpeedTest 1.15.

[1.17.0] - 2026-08-08

Line quality test — --quality and --quality-server host:port report the latency spread (min / avg / max), jitter and packet loss over a burst of 60 pings, reconnecting mid-burst so losses are counted instead of aborting the run. Both flags were advertised in --help before but were never implemented: --quality printed the usage text and exited with a failure, and --quality-server was rejected as an unrecognized option.
Sub-millisecond ping resolution (SpeedTestClient::pingMicros). The old whole-millisecond rounding made every sample on a fast link read as 0–1 ms, which left the quality figures meaningless.
IPv6 support. Sockets were hardcoded to AF_INET, so IPv6-only servers and IPv6-only clients could never connect. host:port parsing now also accepts IPv6 literals, bracketed ([2606:9340:1002::10]:8080) or bare.
Portable static binaries via Dockerfile.static (docker build -f Dockerfile.static -o dist .). musl-based, no shared library dependencies at all, verified on Alpine, Fedora and Debian. musl is used deliberately: glibc's getaddrinfo needs NSS plugins at runtime and does not link statically in a reliable way.
Runtime CA store detection (CaCerts.h). A static binary otherwise carries the certificate path of the distro it was built on; the trust store is now located at run time, so HTTPS keeps verifying certificates on any host.

Certificate verification was effectively random. strict_ssl_verify was never initialised, so CURLOPT_SSL_VERIFYPEER received whatever happened to be on the stack — TLS verification was silently disabled whenever that byte was zero. It now defaults to on, and --insecure remains the explicit opt-out.
Every server appeared to be ~9000 km away. api.ipapi.is moved from its nested response shape (location.latitude, company.name) to a flat one (lat, lon, company_name, cc). The parser swallowed the failure and left the client at latitude 0, so distances — and therefore the nearest-server ordering — were computed from the Gulf of Guinea. Both shapes are now accepted. The ISP name had gone blank for the same reason.
Connecting to an unreachable host could block for minutes; connects now time out after 5 seconds (SpeedTest_CONNECT_TIMEOUT_SEC).
--test-server host without a port silently used port 0 instead of 8080.
Failed IP lookups now report the underlying curl error, with a hint about ca-certificates / --insecure when the cause is a missing trust store.

-DENABLE_STATIC=ON produces a genuinely static binary where static libraries exist. It previously used pkg-config's *_STATIC_LIBRARIES (which loses link order) and still pulled in the shared libssl.so from find_package(OpenSSL), so -static could not link at all. On distros without static libraries it now warns and points at Dockerfile.static.
Release workflow publishes static x86_64 and aarch64 binaries with checksums, and takes its release notes from this file.

Interactive server picker, the default when running in a terminal: arrow keys or j/k to move, Enter to select, / to filter, s to cycle the sort order (distance / ping / city / sponsor), r to re-ping, a to ping everything, q to quit. Pings are measured lazily for visible rows on eight worker threads and update live. --no-select keeps the old automatic lowest-ping behaviour, and that is also the fallback when there is no terminal (a pipe, cron, a script).
--list[=N] — table of the nearest servers with a real measured ping.
--city NAME — restrict candidates to servers matching a city, sponsor, country or host name.
--last and --history[=N] — review previous results without re-testing. Every completed run is appended to $XDG_STATE_HOME/speedtest++/history.jsonl (~/.local/state by default).
Live progress display: an npm-style spinner with the current aggregate throughput, replacing the row of dots. Falls back to dots when stdout is not a terminal and stays silent for --output text|json.
Yandex Internetometer mode (--yandex) for networks where speedtest.net is unreachable, based on internetometer-cli. Probe URLs from the API are accepted only over HTTPS from Yandex-owned hosts, and redirects are disabled. When a Russian IP is detected, the normal run suggests the mode.
Shell completions for fish and zsh, installed by make install.
A restyled result card, --output json support throughout, and --insecure.

Server versions were compared as floats, so 2.11 < 2.3 and every current speedtest server was rejected as too old. Latency-based selection therefore never actually compared servers — bestServer() silently returned the nearest one. Versions are now compared component by component.
The server list only ever contained 10 servers. The legacy XML endpoint picks those itself, and nearby cities were missing from it entirely. The list now comes from the JSON API (~70 servers around the client), with the XML endpoint kept as a fallback.
Segfault on an unresolvable host: gethostbyname_r can report success and leave result empty, which the code then dereferenced.
close() left the descriptor set, so a later connect() returned success on a dead socket.
--test-server no longer reports Ping: 0 ms for a server it cannot reach; it fails with a clear message and fills in the server's details from the list.

cmake_minimum_required raised to 3.10; a fresh clone would not configure at all with the previous 2.7.