The GHC developers are very pleased to announce the availability
of the release candidate for GHC 9.10.2. Binary distributions, source
distributions, and documentation are available at [downloads.haskell.org][] and
via [GHCup](https://www.haskell.org/ghcup/).
GHC 9.10.2 is a bug-fix release fixing over 50 issues of a variety of
severities and scopes, including:
* Significantly improved performance when dynamically loading Haskell symbols (#23415).
* Fixing a bug where the simplifier sometimes destroyed join points during float out, which could impact performance (#24768).
* Reduced memory fragmentation in the non-moving GC's segment allocator, improving resident set size by up to 26% for some applications (#24150).
* Added new flags to control speculative evaluation (-fspec-eval and -fspec-eval-dictfun) to work around performance regressions (#25606).
* Fixed several platform-specific issues, including segfaults with FFI on PowerPC (#23034) and improved code
generation for AArch64 with multiway branches now using jump tables (#19912)
* And many more!
A full accounting of these fixes can be found in the [release notes][]. As
always, GHC's release status, including planned future releases, can be found on
the GHC Wiki [status][].
We would like to thank Well-Typed, Tweag I/O, Juspay, QBayLogic, Channable,
Serokell, SimSpace, the Haskell Foundation, and other anonymous contributors
whose on-going financial and in-kind support has facilitated GHC maintenance
and release management over the years. Finally, this release would not have
been possible without the hundreds of open-source contributors whose work
comprise this release.
As always, do give this release a try and open a [ticket][] if you see
anything amiss.
Cheers,
Zubin
[release notes]: https://downloads.haskell.org/~ghc/9.10.2/docs/users_guide/9.10.2-notes.html
[status]: https://gitlab.haskell.org/ghc/ghc/-/wikis/GHC-status
[downloads.haskell.org] https://downloads.haskell.org/ghc/9.10.2
[ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new
