_content/blog: 1.24 release blog

Change-Id: Iccfad311a4ce034ee84482bc5dbac21eb3b8c3b6
Reviewed-on: https://go-review.googlesource.com/c/website/+/644755
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Commit-Queue: Junyang Shao <shaojunyang@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>

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+---
+title: Go 1.24 is released!
+date: 2025-02-11
+by:
+- Junyang Shao, on behalf of the Go team
+summary:
+  Go 1.24 brings generic type aliases, map performance improvements, FIPS 140
+  compliance and more.
+---
+
+Today the Go team is excited to release Go 1.24,
+which you can get by visiting the [download page](/dl/).
+
+Go 1.24 comes with many improvements over Go 1.23. Here are some of the notable
+changes; for the full list, refer to the [release notes](/doc/go1.24).
+
+## Language changes
+
+<!-- go.dev/issue/46477 -->
+Go 1.24 now fully supports [generic type aliases](/issue/46477): a type alias
+may be parameterized like a defined type.
+See the [language spec](/ref/spec#Alias_declarations) for details.
+
+## Performance improvements
+
+<!-- go.dev/issue/54766, go.dev/cl/614795, go.dev/issue/68578 -->
+Several performance improvements in the runtime have decreased CPU overhead
+by 2–3% on average across a suite of representative benchmarks. These
+improvements include a new builtin `map` implementation based on
+[Swiss Tables](https://abseil.io/about/design/swisstables), more efficient
+memory allocation of small objects, and a new runtime-internal mutex
+implementation.
+
+## Tool improvements
+
+- <!-- go.dev/issue/48429 -->
+  The `go` command now provides a mechanism for tracking tool dependencies for a
+  module. Use `go get -tool` to add a `tool` directive to the current module. Use
+  `go tool [tool name]` to run the tools declared with the `tool` directive.
+  Read more on the [go command](/doc/go1.24#go-command) in the release notes.
+- <!-- go.dev/issue/44251 -->
+  The new `test` analyzer in `go vet` subcommand reports common mistakes in
+  declarations of tests, fuzzers, benchmarks, and examples in test packages.
+  Read more on [vet](/doc/go1.24#vet) in the release notes.
+
+## Standard library additions
+
+- The standard library now includes [a new set of mechanisms to facilitate
+  FIPS 140-3 compliance](/doc/security/fips140). Applications require no source code
+  changes to use the new mechanisms for approved algorithms. Read more
+  on [FIPS 140-3 compliance](/doc/go1.24#fips140) in the release notes.
+  Apart from FIPS 140, several packages that were previously in the
+  [x/crypto](/pkg/golang.org/x/crypto) module are now available in the
+  [standard library](/doc/go1.24#crypto-mlkem).
+
+- Benchmarks may now use the faster and less error-prone
+  [`testing.B.Loop`](/pkg/testing#B.Loop) method to perform benchmark iterations
+  like `for b.Loop() { ... }` in place of the typical loop structures involving
+  `b.N` like `for range b.N`. Read more on
+  [the new benchmark function](/doc/go1.24#new-benchmark-function) in the
+  release notes.
+
+- The new [`os.Root`](/pkg/os#Root) type provides the ability to perform
+  filesystem operations isolated under a specific directory. Read more on
+  [filesystem access](/doc/go1.24#directory-limited-filesystem-access) in the
+  release notes.
+
+- The runtime provides a new finalization mechanism,
+  [`runtime.AddCleanup`](/pkg/runtime#AddCleanup), that is more flexible,
+  more efficient, and less error-prone than
+  [`runtime.SetFinalizer`](/pkg/runtime#SetFinalizer). Read more on
+  [cleanups](/doc/go1.24#improved-finalizers) in the release notes.
+
+## Improved WebAssembly support
+
+<!-- go.dev/issue/65199, CL 603055 -->
+Go 1.24 adds a new `go:wasmexport` directive for Go programs to export
+functions to the WebAssembly host, and supports building a Go program as a WASI
+[reactor/library](https://github.com/WebAssembly/WASI/blob/63a46f61052a21bfab75a76558485cf097c0dbba/legacy/application-abi.md#current-unstable-abi).
+Read more on [WebAssembly](/doc/go1.24#wasm) in the release notes.
+
+---
+
+
+Please read the [Go 1.24 release notes](/doc/go1.24) for the complete and
+detailed information. Don't forget to watch for follow-up blog posts that
+will go in more depth on some of the topics mentioned here!
+
+Thank you to everyone who contributed to this release by writing code and
+documentation, reporting bugs, sharing feedback, and testing the release
+candidates. Your efforts helped to ensure that Go 1.24 is as stable as possible.
+As always, if you notice any problems, please [file an issue](/issue/new).
+
+Enjoy Go 1.24!