v1.3.0 - the "fix a lot of stuff and make it faster" release

[markuswustenberg]

So many changes! Thank you to all contributors, you're great! 😎

Here are the highlights:

• @Hendrikto found some nice performance improvements by introducing an internal raw type, that you'll get automatically by just keeping on using the Text/Textf and Raw/Rawf functions. He also fixed the benchmarks, which turned out to actually measure the wrong thing because of behind-the-scenes compiler optimizations in the benchmark code itself. Thanks, @Hendrikto!
• I've added a new experimental x/slices package, as a way of letting people have the Map/Filter/Reduce workflow that's been requested so many times over the years. Note that the x package is for experimental stuff, so it doesn't have the same compatibility guarantees as the rest of the gomponents module.
• It's now possible to use go fix in your codebase to automatically move away from deprecated functions (in this case, some HTML helpers).

There are a lot of smaller additions, fixes, and performance improvements. See the full list below.

Again, thank you to all contributors!

PS: You'll notice my coding agent @maragubot as a contributor. Rest assured, I still review and merge all changes to gomponents manually.

What's Changed

• Bump actions/setup-go from 5 to 6 by @dependabot[bot] in Bump actions/setup-go from 5 to 6 #267
• Add Claude Code GitHub Workflow by @markuswustenberg in Add Claude Code GitHub Workflow #269
• Add Open boolean attribute for HTML details element by @markuswustenberg in Add Open boolean attribute for HTML details element #270
• Bump actions/checkout from 4 to 5 by @dependabot[bot] in Bump actions/checkout from 4 to 5 #271
• Enhance Claude with global CLAUDE.md by @markuswustenberg in Enhance Claude with global CLAUDE.md #274
• Add the output HTML element by @rynhndrcksn in Add the output HTML element #279
• Bump actions/checkout from 5 to 6 by @dependabot[bot] in Bump actions/checkout from 5 to 6 #281
• Add the spellcheck attribute by @maragubot in Add the spellcheck attribute #283
• Bump golangci/golangci-lint-action from 8 to 9 by @dependabot[bot] in Bump golangci/golangci-lint-action from 8 to 9 #280
• Add x/slices package with Map, Filter, and Reduce by @maragubot in Add x/slices package with Map, Filter, and Reduce #284
• Improve documentation for JoinAttrs by @maragubot in Improve documentation for JoinAttrs #285
• Fix JoinAttrs double-escaping HTML entities by @maragubot in Fix JoinAttrs double-escaping HTML entities #288
• Change components.HTML5Props fields from []g.Node to g.Group by @maragubot in Change components.HTML5Props fields from []g.Node to g.Group #290
• Add compile-time checks for interface satisfaction by @gaiaz-iusipov in Add compile-time checks for interface satisfaction #291
• Add Go 1.26 to CI by @maragubot in Add Go 1.26 to CI #294
• Add persist-credentials: false to all checkout steps by @maragubot in Add persist-credentials: false to all checkout steps #295
• Mark deprecated functions for automatic replacement by @Hendrikto in Mark deprecated functions for automatic replacement #297
• Use latest stable Go for linting by @maragubot in Use latest stable Go for linting #298
• Fix benchmarks by using testing.B.Loop in Go 1.24+ by @Hendrikto in Fix benchmarks by using testing.B.Loop in Go 1.24+ #296
• Fix JoinAttrs for empty-valued, whitespace-only, and boolean attributes by @maragubot in Fix JoinAttrs for empty-valued, whitespace-only, and boolean attributes #303
• Add fuzz test for JoinAttrs by @maragubot in Add fuzz test for JoinAttrs #301
• Replace synthetic benchmark with realistic full-page benchmark by @maragubot in Replace synthetic benchmark with realistic full-page benchmark #304
• Reduce allocations for Attr by splitting into non-variadic helpers by @maragubot in Reduce allocations for Attr by splitting into non-variadic helpers #305
• Replace isVoidElement map with switch statement by @maragubot in Replace isVoidElement map with switch statement #306
• Add implementation diary for benchmark optimization by @maragubot in Add implementation diary for benchmark optimization #308
• Bump codecov/codecov-action from 5 to 6 by @dependabot[bot] in Bump codecov/codecov-action from 5 to 6 #309
• Fix inconsistent import styles in README examples by @maragubot in Fix inconsistent import styles in README examples #310
• Optimize Raw[f] design by @Hendrikto in Optimize Raw[f] design #307
• Add implementation for sizes attribute by @kwiat1990 in Add implementation for sizes attribute #316
• Optimize Text[f] by @Hendrikto in Optimize Text[f] #311
• Update docs to note deprecated element/attribute aliases by @maragubot in Update docs to note deprecated element/attribute aliases #318

New Contributors

• @rynhndrcksn made their first contribution in Add the output HTML element #279
• @maragubot made their first contribution in Add the spellcheck attribute #283
• @gaiaz-iusipov made their first contribution in Add compile-time checks for interface satisfaction #291
• @Hendrikto made their first contribution in Mark deprecated functions for automatic replacement #297
• @kwiat1990 made their first contribution in Add implementation for sizes attribute #316

Full Changelog: v1.2.0...v1.3.0

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This discussion was created from the release v1.3.0 - the "fix a lot of stuff and make it faster" release.

[Hendrikto]

Maybe it is worth pointing out that users can now migrate away from deprecated functions by using go fix, since the inline directives were added.

[markuswustenberg]

Added. :-)