From stegeman at gmail.com Sun Feb 16 05:45:11 2025 From: stegeman at gmail.com (Luite Stegeman) Date: Sun, 16 Feb 2025 14:45:11 +0900 Subject: [GHC-Releases] GHC 9.6.7 rc2 available Message-ID: The GHC developers are very pleased to announce the availability of the second release candidate of GHC 9.6.7. Binary distributions, source distributions, and documentation are available at https://downloads.haskell.org/ghc/9.6.7-rc2 We hope to have this release available via ghcup shortly. Haskell Language Server does not yet build with GHC 9.6.7. See the note below. If all goes according to plan, we expect that the final release of GHC 9.6.7 will be available on February 28. Release candidate 2 contains the following changes relative to (the unannounced) release candidate 1: - the symbol atomic_inc64 is no longer exported from the RTS GHC 9.6.7 will bring a number of fixes, including: - GHC’s internal Unique type has been widened to 64-bits on 32-bit architectures, avoiding potential miscompilations on large projects. - Fix a runtime crash when using the compacting GC, caused by black holes in large objects. - Added new flags -fspec-eval and -fspec-eval-dictfun to allow switching off speculative evaluation. The following libraries have been updated since GHC 9.6.6: - base-4.18.3.0 (the version number in the rc2 release notes is incorrect) - filepath-1.4.301.0 - unix-2.8.6.0 - bytestring-0.11.5.4 - array-0.5.8.0 A more detailed description can be found in the [release notes] and a full list of changes in [GHC!13841] and [GHC!13891] Note about Haskell Language Server and building GHC 9.8+: The change of Unique to 64 bit [GHC#22010] adds the exported symbol ghc_unique_counter64 to the RTS. Unfortunately it's impossible to avoid this without breaking other things. If you encounter a linker error related to ghc_unique_counter64 when building GHC (or building a GHC-derived package like ghc-lib-parser) with GHC 9.6.7, you probably have to add this [fix] to the program you're building. At the time of writing all released GHC 9.8 versions are affected, as well as the latest version of ghc-lib-parser-9.8 on hackage (which is a dependency of Haskell Language Server). We would like to thank GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, 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. Please give this release candidate a try and open a [ticket] if you see anything amiss. ~ Luite [release notes]: https://downloads.haskell.org/ghc/9.6.7-rc2/docs/users_guide/9.6.7-notes.html [GHC!13841]: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13841 [GHC!13891]: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13891 [GHC#22010]: https://gitlab.haskell.org/ghc/ghc/-/issues/22010 [fix] https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13743 [ticket] https://gitlab.haskell.org/ghc/ghc/-/issues/new From stegeman at gmail.com Thu Feb 13 22:55:31 2025 From: stegeman at gmail.com (Luite Stegeman) Date: Fri, 14 Feb 2025 07:55:31 +0900 Subject: [GHC-Releases] GHC 9.6.7 rc2 available Message-ID: The GHC developers are very pleased to announce the availability of the second release candidate of GHC 9.6.7. Binary distributions, source distributions, and documentation are available at https://downloads.haskell.org/ghc/9.6.7-rc2 We hope to have this release available via ghcup shortly. Haskell Language Server does not yet build with GHC 9.6.7. See the note below. If all goes according to plan, we expect that the final release of GHC 9.6.7 will be available on February 28. Release candidate 2 contains the following changes relative to (the unannounced) release candidate 1: - the symbol atomic_inc64 is no longer exported from the RTS GHC 9.6.7 will bring a number of fixes, including: - GHC’s internal Unique type has been widened to 64-bits on 32-bit architectures, avoiding potential miscompilations on large projects. - Fix a runtime crash when using the compacting GC, caused by black holes in large objects. - Added new flags -fspec-eval and -fspec-eval-dictfun to allow switching off speculative evaluation. The following libraries have been updated since GHC 9.6.6: - base-4.18.3.0 (the version number in the rc2 release notes is incorrect) - filepath-1.4.301.0 - unix-2.8.6.0 - bytestring-0.11.5.4 - array-0.5.8.0 A more detailed description can be found in the [release notes] and a full list of changes in [GHC!13841] and [GHC!13891] Note about Haskell Language Server and building GHC 9.8+: The change of Unique to 64 bit [GHC#22010] adds the exported symbol ghc_unique_counter64 to the RTS. Unfortunately it's impossible to avoid this without breaking other things. If you encounter a linker error related to ghc_unique_counter64 when building GHC (or building a GHC-derived package like ghc-lib-parser) with GHC 9.6.7, you probably have to add this [fix] to the program you're building. At the time of writing all released GHC 9.8 versions are affected, as well as the latest version of ghc-lib-parser-9.8 on hackage (which is a dependency of Haskell Language Server). We would like to thank GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, 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. Please give this release candidate a try and open a [ticket] if you see anything amiss. ~ Luite [release notes]: https://downloads.haskell.org/ghc/9.6.7-rc2/docs/users_guide/9.6.7-notes.html [GHC!13841]: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13841 [GHC!13891]: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13891 [GHC#22010]: https://gitlab.haskell.org/ghc/ghc/-/issues/22010 [fix] https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13743 [ticket] https://gitlab.haskell.org/ghc/ghc/-/issues/new From stegeman at gmail.com Sat Feb 15 14:27:14 2025 From: stegeman at gmail.com (Luite Stegeman) Date: Sat, 15 Feb 2025 23:27:14 +0900 Subject: [GHC-Releases] GHC 9.6.7 rc2 available Message-ID: The GHC developers are very pleased to announce the availability of the second release candidate of GHC 9.6.7. Binary distributions, source distributions, and documentation are available at https://downloads.haskell.org/ghc/9.6.7-rc2 We hope to have this release available via ghcup shortly. Haskell Language Server does not yet build with GHC 9.6.7. See the note below. If all goes according to plan, we expect that the final release of GHC 9.6.7 will be available on February 28. Release candidate 2 contains the following changes relative to (the unannounced) release candidate 1: - the symbol atomic_inc64 is no longer exported from the RTS GHC 9.6.7 will bring a number of fixes, including: - GHC’s internal Unique type has been widened to 64-bits on 32-bit architectures, avoiding potential miscompilations on large projects. - Fix a runtime crash when using the compacting GC, caused by black holes in large objects. - Added new flags -fspec-eval and -fspec-eval-dictfun to allow switching off speculative evaluation. The following libraries have been updated since GHC 9.6.6: - base-4.18.3.0 (the version number in the rc2 release notes is incorrect) - filepath-1.4.301.0 - unix-2.8.6.0 - bytestring-0.11.5.4 - array-0.5.8.0 A more detailed description can be found in the [release notes] and a full list of changes in [GHC!13841] and [GHC!13891] Note about Haskell Language Server and building GHC 9.8+: The change of Unique to 64 bit [GHC#22010] adds the exported symbol ghc_unique_counter64 to the RTS. Unfortunately it's impossible to avoid this without breaking other things. If you encounter a linker error related to ghc_unique_counter64 when building GHC (or building a GHC-derived package like ghc-lib-parser) with GHC 9.6.7, you probably have to add this [fix] to the program you're building. At the time of writing all released GHC 9.8 versions are affected, as well as the latest version of ghc-lib-parser-9.8 on hackage (which is a dependency of Haskell Language Server). We would like to thank GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, 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. Please give this release candidate a try and open a [ticket] if you see anything amiss. ~ Luite [release notes]: https://downloads.haskell.org/ghc/9.6.7-rc2/docs/users_guide/9.6.7-notes.html [GHC!13841]: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13841 [GHC!13891]: https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13891 [GHC#22010]: https://gitlab.haskell.org/ghc/ghc/-/issues/22010 [fix] https://gitlab.haskell.org/ghc/ghc/-/merge_requests/13743 [ticket] https://gitlab.haskell.org/ghc/ghc/-/issues/new P.S. Apologies if you already received this mail. From ben at well-typed.com Thu Feb 27 00:11:37 2025 From: ben at well-typed.com (Ben Gamari) Date: Wed, 26 Feb 2025 19:11:37 -0500 Subject: [GHC-Releases] GHC 9.12.2-rc1 is now available Message-ID: <87bjuouu0x.fsf@smart-cactus.org> The GHC developers are happy to announce the availability of the first and likely final release candidate of GHC 9.12.2. This is an important bug-fix release resolving a significant correctness issue present in 9.12.1 (#25653). In accordance with our under-discussion [release policies] this candidate will have a two-week testing window. The final 9.12.2 release will likely come the week of 12 March 2025. As always, if you find anything amiss please open a [ticket]. Happy Haskelling! - Ben [release policies]: https://gitlab.haskell.org/ghc/ghc-hq/-/merge_requests/38 [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new -------------- next part -------------- A non-text attachment was scrubbed... Name: signature.asc Type: application/pgp-signature Size: 861 bytes Desc: not available URL: From juhpetersen at gmail.com Wed Feb 26 12:58:21 2025 From: juhpetersen at gmail.com (Jens Petersen) Date: Wed, 26 Feb 2025 12:58:21 -0000 Subject: [GHC-Releases] GHC 9.6.7 rc2 available In-Reply-To: References: Message-ID: Thanks Luite, I want to try to build the RC at least - just noting the RC version number is not ideal (since 9.6.7.20250131 > 9.6.7 - we don't really have a great versioning scheme for snapshots...) Cheers, Jens -------------- next part -------------- An HTML attachment was scrubbed... URL: From juhpetersen at gmail.com Wed Feb 26 15:49:56 2025 From: juhpetersen at gmail.com (Jens Petersen) Date: Wed, 26 Feb 2025 15:49:56 -0000 Subject: [GHC-Releases] GHC 9.6.7 rc2 available In-Reply-To: References: Message-ID: I haven't actually run it yet, but from building it the only major thing I noticed so far is: - Hadrian requires 'directory' newer than both current ghc-9.8 and ghc-9.10 😢 (as new as 9.12) - I would expect hadrian in 9.6 to be buildable with 9.6's 'directory', etc. I can probably workaround it for Fedora (a bit tedious) but it feels excessive: the overall trend that hadrian is getting harder and harder to build without cabal-install in particular. Jens On Wed, 26 Feb 2025 at 18:33, Jens Petersen wrote: > Thanks Luite, > > I want to try to build the RC at least - just noting the RC version number > is not ideal (since 9.6.7.20250131 > 9.6.7 - we don't really have a great > versioning scheme for snapshots...) > > Cheers, Jens > -------------- next part -------------- An HTML attachment was scrubbed... URL: