[ANNOUNCE] GHC 9.4.8 is now available
The GHC developers are happy to announce the availability of GHC 9.4.8. Binary distributions, source distributions, and documentation are available on the [release page](/download_ghc_9_4_8.html). This release is primarily a bugfix release addressing a few issues found in the 9.4 series. These include: * A fix for a recompilation checking bug where GHC may miss changes in transitive dependencies when deciding to relink a program (#23724). * A fix for a code generator bug on AArch64 platforms resulting in invalid conditional jumps (#23746). * Support for `-split-sections` on Windows. * Enabling `-split-sections` for various Linux and Windows binary distributions, enabling GHC to produce smaller binaries on these platforms. * And a few other fixes A full accounting of changes can be found in the [release notes]. As some of the fixed issues do affect correctness users are encouraged to upgrade promptly. We would like to thank Microsoft Azure, GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, SimSpace, 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. Happy compiling! -Zubin [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new [release notes]: https://downloads.haskell.org/~ghc/9.4.8/docs/users_guide/9.4.8-notes.html signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[ANNOUNCE] GHC 9.4.7 is now available
The GHC developers are happy to announce the availability of GHC 9.4.7. Binary distributions, source distributions, and documentation are available at https://downloads.haskell.org/ghc/9.4.7 The GHC developers are happy to announce the availability of GHC 9.4.7. Binary distributions, source distributions, and documentation are available at [downloads.haskell.org](https://downloads.haskell.org/ghc/9.4.7). This release is primarily a bugfix release addressing some issues found in 9.4.6. These include: * A bump to bytestring-0.11.5.2 allowing GHC to be bootstrapped on systems where the bootstrap compiler is built with the `pthread_condattr_setclock` symbol available (#23789). * A number of bug fixes for scoping bugs in the specialiser, preventing simplifier panics (#21391, #21689, #21828, #23762). * Distributing dynamically linked alpine bindists (#23349, #23828). * A bug fix for the release notes syntax, allowing them to built on systems with older python and sphinx versions (#23807, #23818). * ... and a few more. See the [release notes] for a full accounting. We would like to thank Microsoft Azure, GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, SimSpace, 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. Happy compiling, - Zubin [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new [release notes]: https://downloads.haskell.org/~ghc/9.4.7/docs/users_guide/9.4.7-notes.html signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[Haskell] [ANNOUNCE] GHC 9.2.8 released
The GHC developers are happy to announce the availability of GHC 9.2.8. Binary distributions, source distributions, and documentation are available at [downloads.haskell.org](https://downloads.haskell.org/ghc/9.2.8). This release is primarily a bugfix release addressing one issue found in 9.2.7: - Fix a bug with RTS linker failing with 'internal error: m32_allocator_init: Failed to map' on newer Linux kernels (#19421). We would like to thank Microsoft Azure, GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, SimSpace, 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. Happy compiling, - Zubin [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new [release notes]: https://downloads.haskell.org/~ghc/9.2.8/docs/html/users_guide/9.2.8-notes.html signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[Haskell] [ANNOUNCE] GHC 9.4.5 released
The GHC developers are happy to announce the availability of GHC 9.4.5. Binary distributions, source distributions, and documentation are available at [downloads.haskell.org](https://downloads.haskell.org/ghc/9.4.5). Download Page: https://www.haskell.org/ghc/download_ghc_9.4.5.html Blog Post: https://www.haskell.org/ghc/blog/20230418-ghc-9.4.5-released.html This release is primarily a bugfix release addressing a few issues found in 9.4.4. These include: * Fixes for a number of bug fixes in the simplifier (#22623, #22718, #22913, 22695, #23184, #22998, #22662, #22725). * Many bug fixes to the non-moving and parallel GCs (#22264, #22327, #22926, #22927, #22929, #22930, #17574, #21840, #22528) * A fix a bug with the alignment of RTS data structures that could result in segfaults when compiled with high optimisation settings on certain platforms (#22975 , #22965). * Bumping `gmp-tarballs` to a version which doesn't use the reserved `x18` register on AArch64/Darwin systems, and also has fixes for CVE-2021-43618 (#22497, #22789). * A number of improvements to recompilation avoidance with multiple home units (#22675, #22677, #22669, #22678, #22679, #22680) * Fixes for regressions in the typechecker and constraint solver (#22647, #23134, #22516, #22743) * Easier installation of binary distribution on MacOS platforms by changing the installation Makefile to remove the quarantine attribute when installing. * ... and many more. See the [release notes] for a full accounting. As some of the fixed issues do affect correctness users are encouraged to upgrade promptly. We would like to thank Microsoft Azure, GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, SimSpace, 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. Happy compiling, - Zubin [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new [release notes]: https://downloads.haskell.org/~ghc/9.4.5/docs/html/users_guide/9.4.5-notes.html signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[Haskell] [ANNOUNCE] GHC 9.2.7 released
The GHC developers are happy to announce the availability of GHC 9.2.7. Binary distributions, source distributions, and documentation are available at [downloads.haskell.org](https://downloads.haskell.org/ghc/9.2.7). Download Page: https://www.haskell.org/ghc/download_ghc_9_2_7.html Blog Post: https://www.haskell.org/ghc/blog/20230227-ghc-9.2.7-released.html This release is primarily a bugfix release addressing a few issues found in 9.2.6. These include: * A fix for a bug with the RTS linker being unable to resolve the `setKeepCafs` symbol which started being used by the GHC library in 9.2.6, resulting in code depending on this symbol failing to load in GHCi or via a compile time splice when using a statically linked GHC, such as on Windows (#22961). * A fix a bug with the alignment of RTS data structures that could result in segfaults when compiled with high optimisation settings on certain platforms (#22975 , #22965). * A fix for a bug in the simplifier related to placeholder values (rubbish literals) emitted by the worker/wrapper optimisation leading to -dcore-lint errors and compiler panics in certain cases (#19882, #22914, #23000). * Easier installation of binary distribution on MacOS platforms by changing the installation Makefile to remove the quarantine attribute when installing. * ... and a few more. See the [release notes] for a full accounting. As some of the fixed issues do affect correctness users are encouraged to upgrade promptly. We would like to thank Microsoft Azure, GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, SimSpace, 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. Happy compiling, - Zubin [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new [release notes]: https://downloads.haskell.org/~ghc/9.2.7/docs/html/users_guide/9.2.7-notes.html signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[Haskell] [ANNOUNCE] GHC 9.2.6 released
The GHC developers are happy to announce the availability of GHC 9.2.6. Binary distributions, source distributions, and documentation are available at [downloads.haskell.org](https://downloads.haskell.org/ghc/9.2.6). Download Page: https://www.haskell.org/ghc/download_ghc_9_2_6.html Blog Post: https://www.haskell.org/ghc/blog/20230210-ghc-9.2.6-released.html This release is primarily a bugfix release addressing a few issues found in 9.2.5. These include: * Fixes for a number of simplifier issues typically resulting in compiler panics (#22491, #22482, #19824, #22718, #22662, #22039). * Fix for a simplifier regression in 9.2.5 that could impact runtime performance when compiling with optimisations due to duplication of expensive work (#22425). * Various stability improvments and bug fixes for the non moving and parallel GCs (#22528, #20221, #22264, #22327, #22929, #22927, #22929, #22930). * Allow certain keywords which can be used as variable names with `-XOverloadedRecordDot` (#20723). * Improvements to typechecker performance for modules with holes in type signatures (#14766) * Bump `gmp-tarballs` to a version which doesn't use the reserved `x18` register on AArch64/Darwin systems, and also has fixes for CVE-2021-43618 (#22497, #22789). * ... and a few more. See the [release notes] for a full accounting. As some of the fixed issues do affect correctness users are encouraged to upgrade promptly. We would like to thank Microsoft Azure, GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, SimSpace, 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. Happy compiling, - Zubin [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new [release notes]: https://downloads.haskell.org/~ghc/9.2.6/docs/html/users_guide/9.2.6-notes.html signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[Haskell] [ANNOUNCE] GHC 9.2.5 released
The GHC developers are very happy to at announce the availability of GHC 9.2.5. Binary distributions, source distributions, and documentation are available at [`downloads.haskell.org`](https://downloads.haskell.org/ghc/9.2.5). Download Page: https://www.haskell.org/ghc/download_ghc_9_2_5.html Blog Post: https://www.haskell.org/ghc/blog/20221107-ghc-9.2.5-released.html This release is primarily a bugfix release addressing a few issues found in 9.2.4. These include: * Code generation issues in the AArch64 native code generator backend resulting in incorrect runtime results in some circumstances (#22282, #21964) * Fixes for a number of issues with the simplifier leading to core lint errors and suboptimal performance (#21694, #21755, #22114) * A long-standing interface-file determinism issue where full paths would leak into the interface file (#22162) * A runtime system bug where creating empty mutable arrays resulted in a crash (#21962) - ... and a few more. See the [release notes] for a full accounting. As some of the fixed issues do affect correctness users are encouraged to upgrade promptly. We would like to thank Microsoft Azure, GitHub, IOG, the Zw3rk stake pool, Well-Typed, Tweag I/O, Serokell, Equinix, SimSpace, 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. Happy compiling, - Zubin [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new [release notes]: https://downloads.haskell.org/~ghc/9.2.5/docs/html/users_guide/9.2.5-notes.html signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[Haskell] [ANNOUNCE] GHC 9.2.4 released
The GHC developers are very happy to at announce the availability of GHC 9.2.4. Binary distributions, source distributions, and documentation are available at [`downloads.haskell.org`](https://downloads.haskell.org/ghc/9.2.4). Download Page: https://www.haskell.org/ghc/download_ghc_9_2_4.html Blog Post: https://www.haskell.org/ghc/blog/20220728-ghc-9.2.4-released.html This release will include: - The new `DeepSubsumption` language extension which reverses the effects of the [Simplified Subsumption Proposal] introduced in GHC 9.0. This is an attempt to make GHC 9.2.4 more backwards compatible with GHC 8.10 and eases migration for users who depended on this feature. This extension is enabled by default with the `Haskell2010` and `Haskell98` languages but disabled with the `GHC2021` language originally introduced in GHC 9.2.1. See the [Deep Subsumption Proposal] for more details. - Fixes for segfaults that may arise due to a bug in the implementation of the `keepAlive#` primop. This may regress performance for certain programs which use this primop or functions which use the primop, such as `withForeignPtr`. These regressions are mostly small, but can be larger in certain edge cases. Judicious use of `unsafeWithForeignPtr` when its argument is known not to statically diverge can mitigate these in many cases. It is our judgment that the critical correctness issues justify the regression in performance and that it is important to get a release out with the fix while we work on a better approach which will improve performance for future releases (#21708). We have a [wiki page](https://gitlab.haskell.org/ghc/ghc/-/wikis/proposal/with-combinator) that tracks possible solutions to this problem, and Ben wrote a [blog post](https://www.haskell.org/ghc/blog/20210607-the-keepAlive-story.html) detailing the introduction of the `keepAlive#` primop and its history. - Fixes for a number of miscompilations on AArch64 and other platforms (#21624, #21773, #20735, #21685). - Fixes for segfaults due to bugs in the RTS and GC (#21708, #21880, #21885). - Fixing the behaviour of Ctrl-C with GHCi on Windows (#21889). - ... and much more. See the [release notes] for a full accounting. As some of the fixed issues do affect correctness users are encouraged to upgrade promptly. We would like to thank Microsoft Azure, GitHub, IOG, the Zw3rk stake pool, Tweag I/O, Serokell, Equinix, SimSpace, 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. Happy compiling, - Zubin [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new [release notes]: https://downloads.haskell.org/~ghc/9.2.4/docs/users_guide/9.2.4-notes.html [Simplified Subsumption Proposal]: https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0287-simplify-subsumption.rst [Deep Subsumption Proposal]: https://github.com/ghc-proposals/ghc-proposals/blob/master/proposals/0511-deep-subsumption.rst signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[Haskell] [ANNOUNCE] GHC 9.2.3 released
The GHC developers are very happy to at announce the availability of GHC 9.2.3. Binary distributions, source distributions, and documentation are available at [`downloads.haskell.org`](https://downloads.haskell.org/ghc/9.2.3). Download Page: https://www.haskell.org/ghc/download_ghc_9_2_3.html Blog Post: https://www.haskell.org/ghc/blog/20220527-ghc-9.2.3-released.html This release includes many bug-fixes and other improvements to 9.2.2 including: * A fix to a critical linking bug on Windows causing the 9.2.2 release to be unusable (#21196). * Numerous bug fixes for regressions and other issues in the typechecker (#2147, #21515, #20582, #20820, #21130, #21479). * Correctness bugs in the code generator and compiler backends (#21396, #20959, #21465). * Packaging fixes on many platforms (#20760, #21487, #21402). * Many others. See the [release notes][] for a full list. As some of the fixed issues do affect correctness users are encouraged to upgrade promptly. We would like to thank Microsoft Azure, GitHub, IOG, the Zw3rk stake pool, Tweag I/O, Serokell, Equinix, SimSpace, 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. Happy compiling, - Zubin [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new [release notes]: https://downloads.haskell.org/ghc/9.2.3/docs/html/users_guide/9.2.3-notes.html signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
Re: [Haskell] [ANNOUNCE] GHC 9.0.2 released
- More serious: why was Win32 major bumped from 2.10 to 2.12? - this breaks foundation, hence current Stackage Nightly is kind of broken for Windows now: https://github.com/commercialhaskell/stackage/issues/6400 We needed to bump Win32 as per a request from the maintainer made at https://gitlab.haskell.org/ghc/ghc/-/issues/20017 Bumping it from 2.10.0 to 2.10.1.0 ran into https://github.com/haskell/win32/issues/174, which was fixed by https://github.com/haskell/win32/pull/175 Given this, our options at the time were: 1) Backport pull request #175 to 2.10.1 and wait for a new release of Win32 2) Revert https://github.com/haskell/win32/pull/160 in Win32 2.10, which is what caused WinIO/#174 3) Use Win32 2.12.0.1, which contains the requested fix(ghc/#20017), as well as the explicit exports added by #175, along with a few other minor changes from Win32 2.11 which I don't think are responsible for any of the pain discussed in the stackage issue. I made the decision to go with option 3 in the interests of getting the release out. However, if I understand correctly, we would still end up with the same problems as brought up in the stackage issue if we went with option 1. We might have avoided some of this pain if we went with option 2 and reverted the offending commits from WinIO 2.10 instead of using explicit import lists. But removing features from a major release of a library didn't seem like a good idea at a time, and would have delayed the 9.0.2 release even more. I hope this makes the reasoning for the decision clearer, and I do apologise for any pain caused. I did believe that under the circumstances bumping WinIO to 2.12.0.1 was the best way forward. Perhaps option 2 would have been better in retrospect, but at the time the benefits for such a change (in particular the regression in functionality) in a major release of Win32 were not so clear. Cheers, Zubin ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
Re: [Haskell] [ANNOUNCE] GHC 9.0.2 released
Oops. Pushed! On 21/12/25 15:37, Shayne Fletcher wrote: Awesome. Thank-you! There appears not to be a ghc-9.0.2-release tag. Might this be addressed please? ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[Haskell] [ANNOUNCE] GHC 9.0.2 released
The GHC developers are very happy to at long last announce the availability of GHC 9.0.2. Binary distributions, source distributions, and documentation are available at the [usual place](https://downloads.haskell.org/ghc/9.0.2/). Download Page: https://www.haskell.org/ghc/download_ghc_9_0_2.html Blog Post: https://www.haskell.org/ghc/blog/20211225-ghc-9.0.2-released.html GHC 9.0.2 adds first class AArch64/Darwin support using the LLVM backend, as well as fixing a number of critical correctness bugs with the 9.0.1 release, along with numerous improvements to compiler performance and memory usage: * First-class support for Apple M1 hardware using GHC's LLVM ARM backend. * Fix a number of incorrect rewrite rules for `fromInteger` (#19345, #20066). * Fix a number of runtime system and GC bugs which typically manifested in crashes (#19417, #19297, #19645, #19667, #18033, #20132, #19715, #20399, #20414, #20649, #19147, #20051, #20093) * Fixes for various compiler performance and memory usage issues (#20134, #13586, #20509, #19668, #19996, #19471) * Improvements and bug fixes for the code generator and optimiser (#18638, #19581, #19700, #19996, #19181, #19822) * Fixes for typechecker bugs (#19410 , #19191, #19522, #19400, #19849) * Bug fixes for the frontend and parser (#19397, #19838, #19518, #19777, #20242, #19786) * Emit warnings if Unicode Bidirectional Formatting characters are found in the source, possibly misleading code reviewers (#20263). * Many packaging related fixes, including versioned `ghc-pkg` executables (#20087), and actually distributing GHC versions linked against the `native` big integer backend (#18967, #19953) on both Windows and Alpine Linux. Some previous releases were still linked against the `GMP` library due to a misconfiguration of the builders. * A significant refactoring of `process` fixing numerous bugs mostly on Apple platforms (#19994, [process refactoring](https://github.com/haskell/process/pull/208)). * Bug fixes for the linker on Darwin platforms (#20004, #19968, #19950). A complete list of bug fixes and improvements can be found in the [release notes](https://downloads.haskell.org/ghc/9.0.2/docs/html/users_guide/9.0.2-notes.html). Finally, thank you to Microsoft Research, GitHub, IOHK, the Zw3rk stake pool, Tweag I/O, Serokell, Equinix, SimSpace, and other anonymous contributors whose on-going financial and in-kind support has facilitated GHC maintenance and release management over the years. Moreover, this release would not have been possible without the hundreds of open-source contributors whose work comprise this release. As always, do open a [ticket][] if you see anything amiss. Happy Holidays and Happy Hacking! - Zubin signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[Haskell] [ANNOUNCE] GHC 8.10.7 released
The GHC team is very pleased to announce the availability of GHC 8.10.7. Source and binary distributions are available at the [usual place](https://downloads.haskell.org/ghc/8.10.7/). Download Page: https://www.haskell.org/ghc/download_ghc_8_10_7.html Blog Post: https://www.haskell.org/ghc/blog/20210827-ghc-8.10.7-released.html This is a small bugfix release, fixing one linking portability issue (#19950) present in GHC 8.10.5 and GHC 8.10.6 on some x86_64 macOS toolchains, which resulted in undefined symbol errors for `___darwin_check_fd_set_overflow`. Issue #19950 is caused by a bug in newer Apple toolchains (specifically XCode 12) where programs compiled with affected versions of XCode are not backwards compatible with configurations running older version of XCode (certain versions of XCode 11). We claimed to have fixed this in GHC 8.10.6, but alas this wasn't the case. The fix was originally tested on the master branch, which uses a different build configuration from the 8.10 branch. We have now tested the fix on the GHC 8.10 branch and finally squashed the bug. We would like to thank Microsoft Research, GitHub, IOHK, the Zw3rk stake pool, Tweag I/O, Serokell, Equinix, SimSpace, and other anonymous contributors whose on-going financial and in-kind support has facilitated GHC maintenance and release management over the years. We would also like to thank the hundreds of open-source contributors whose work makes GHC possible. A complete list of bug fixes and improvements can be found in the [release notes](https://downloads.haskell.org/ghc/8.10.7/docs/html/users_guide/8. 10.7-notes.html). As always, feel free to report any issues you encounter via [gitlab.haskell.org](https://gitlab.haskell.org/ghc/ghc/-/issues/new). signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
The State of GHC 8.10
Hi all, GHC 8.10.6 was released last week, with high hopes of finally putting an end to the long running saga of the GHC 8.10 series. Unfortunately, this was not to be the case as we soon discovered #19950, an issue that we claimed to have fixed in the 8.10.6 release, was still affecting the released compiler. #19950 is caused by a bug in newer Apple toolchains (specifically XCode 12) where programs compiled with affected versions of XCode are not backwards compatible with configurations running older version of XCode (certain versions of XCode 11). It surfaced in GHC 8.10.5 since we upgraded the toolchain on our Darwin builders to one of the affected versions. The original fix/workaround for #19950 was tested on the master and GHC-9.2 branches and found to be working, and so backported to the 8.10 branch. Unfortunately, Darwin releases for 8.10 are still done using the Make build system, which did not pick up the extra linker options needed to work around the issue. It places a heavy burden on developers to have so many active branches of the compiler to keep in mind, and the current situation with 4 active branches is simply not sustainable. As the oldest currently active branch, it is currently a priority to retire the 8.10 branch of GHC from active development as soon as possible. We have now fixed and verified the fix for #19950 on the 8.10 branch and prepared a GHC 8.10.7 release including it. As of now, the only change in GHC 8.10.7 is to link the x86_64 darwin release build with a few extra linker options to work around #19950. If you have any other critical issues that prevent you from using GHC 8.10(.6), please raise them soon by either pointing to existing tickets on the tracker or creating a new one. We are planning to cut the new release as soon as early next week, and we are really hoping that this would be the final release in the 8.10 series. Cheers, Zubin. signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[Haskell] [ANNOUNCE] GHC 8.10.6 released
The GHC team is very pleased to announce the availability of GHC 8.10.6. Source and binary distributions are available at the [usual place](https://downloads.haskell.org/ghc/8.10.6/). Download Page: https://www.haskell.org/ghc/download_ghc_8_10_6.html Blog Post: https://www.haskell.org/ghc/blog/20210814-ghc-8.10.6-released.html This is a bugfix release, fixing many issues present in GHC 8.10.5, including: - A fix for segmentation faults in GHCi on `aarch64-darwin` due to an incorrect foreign import in `haskeline`. See [this blog post](https://www.haskell.org/ghc/blog/20210709-capi-usage.html) by Ben Gamari for more details on how your library could be affected. - A fix for a critical bug affecting Haskell Language Server (HLS) among other applications caused by missing RTS symbols required for statically linked builds of the GHC library (#19763). - No longer emitting spurious warnings for LLVM versions (LLVM 9-12) that were actually supported (#19973, #19829, #19959). - Numerous bug fixes for the new LLVM based `aarch64-darwin` backend (#20132). - Fixes and stability improvements for the non-moving GC (#19715). - Many other bug fixes for the RTS (#18033, #20132, #20093, #19421). - Many packaging related fixes, including versioned `ghc-pkg` executables (#20087), and actually distributing GHC versions linked against the `integer-simple` big integer backend (#18967, #19953) on both Windows and Alpine Linux. Previous releases were still linked against the `GMP` library due to a misconfiguration of the builders. - A significant refactoring of `process` fixing numerous bugs mostly on Apple platforms (#19994, [process refactoring](https://github.com/haskell/process/pull/208)). - A FreeBSD release after fixing issues that caused GHC 8.10.5 to be unable to build (#19958, #19948). - Bug fixes for the linker on Darwin platforms (#20004, #19968, #19950). A complete list of bug fixes and improvements can be found in the [release notes](https://downloads.haskell.org/ghc/8.10.6/docs/html/users_guide/8.10.6-notes.html). As always, feel free to report any issues you encounter via [gitlab.haskell.org](https://gitlab.haskell.org/ghc/ghc/-/issues/new). signature.asc Description: PGP signature ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
Re: [Haskell] [ANNOUNCE] GHC 8.10.5 released
The correct link to the release notes is: https://downloads.haskell.org/ghc/8.10.5/docs/html/users_guide/8.10.5-notes.html (Note the missing tilde) Apolgies, Zubin ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
[Haskell] [ANNOUNCE] GHC 8.10.5 released
The GHC team is very pleased to announce the availability of GHC 8.10.5. Source and binary distributions are available at the [usual place](https://downloads.haskell.org/ghc/8.10.5/). This release adds native ARM/Darwin support, as well as bringing performance improvements and fixing numerous bugs of varying severity present in the 8.10 series: - First-class support for Apple M1 hardware using GHC's LLVM ARM backend - Fix a bug resulting in segmentation faults where code may be unloaded prematurely when using the parallel garbage collector (#19417) along with other bugs in the GC and linker (#19147, #19287) - Improve code layout fixing certain performance regressions (#18053) and other code generation bug fixes (#19645) - Bug fixes for signal handling when using the pthread itimer implementation. - Improvements to the specializer and simplifier reducing code size and and memory usage (#17151, #18923,#18140, #10421, #18282, #13253). - Fix a bug where typechecker plugins could be run with an inconsistent typechecker environment (#19191). - Fix a simplifier bug which lead to an exponential blow up and excessive memory usage in certain cases A complete list of bug fixes and improvements can be found in the release notes: [release notes](https://downloads.haskell.org/~ghc/8.10.5/docs/html/users_guide/8.10.5-notes.html) As always, feel free to report any issues you encounter via [gitlab.haskell.org](https://gitlab.haskell.org/ghc/ghc/-/issues/new). ___ Glasgow-haskell-users mailing list Glasgow-haskell-users@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/glasgow-haskell-users
