- Glasgow-haskell-users

GHC 9.10.3-rc2 is now available
by Zubin Duggal 06 Aug '25

06 Aug '25

The GHC developers are very pleased to announce the availability of the second release candidate for GHC 9.10.3. Binary distributions, source distributions, and documentation are available at [downloads.haskell.org][] and via [GHCup](https://www.haskell.org/ghcup/). GHC 9.10.3 is a bug-fix release fixing over 50 issues of a variety of severities and scopes. 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][]. The changes from the first release candidate are: - Bumping the text submodule to 2.1.3 - Reverting a bug fix (!14291) that restricted previously allowed namespace specifiers (#26250) - Reverting the bump of the deepseq submodule to 1.5.2.0 (#26251) This release candidate will have a two-week testing period. If all goes well the final release will be available the week of 19 August 2025. 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. [release notes]: https://gitlab.haskell.org/ghc/ghc/-/blob/ghc-9.10/docs/users_guide/9.10.3-… [status]: https://gitlab.haskell.org/ghc/ghc/-/wikis/GHC-status [downloads.haskell.org] https://downloads.haskell.org/ghc/9.10.3-rc2 [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new

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شهادة الأبوة في المغرب
by walid falcon 04 Aug '25

04 Aug '25

Spam detection software, running on the system "mail.haskell.org", has identified this incoming email as possible spam. The original message has been attached to this so you can view it (if it isn't spam) or label similar future email. If you have any questions, see @@CONTACT_ADDRESS@@ for details. Content preview: ÙÙ ÙØ§ ØªØØªØ§Ø¬ ÙØ¹Ø±ÙØªÙ ØÙÙ Ø´ÙØ§Ø¯Ø© Ø§ÙØ£Ø¨ÙØ© Ø¨Ø§ÙÙØºØ±Ø¨ ÙÙÙÙÙ ØªØÙÙÙ Ø§ÙØ·ÙØ¨ ÙÙ Ø®ÙØ§Ù Ø§ÙØ±Ø§Ø¨Ø· Ø§ÙÙØ¨Ø§Ø´Ø± https://www.targir.com/2025/04/blog-post_14.html [...] Content analysis details: (6.6 points, 5.0 required) pts rule name description ---- ---------------------- -------------------------------------------------- 0.0 FREEMAIL_FROM Sender email is commonly abused enduser mail provider (pikolasikolatest2[at]gmail.com) -0.0 SPF_PASS SPF: sender matches SPF record 0.1 FREEMAIL_ENVFROM_END_DIGIT Envelope-from freemail username ends in digit (pikolasikolatest2[at]gmail.com) 5.0 UNWANTED_LANGUAGE_BODY BODY: Message written in an undesired language 0.0 HTML_MESSAGE BODY: HTML included in message 1.5 BODY_8BITS BODY: Body includes 8 consecutive 8-bit characters 0.0 T_DKIM_INVALID DKIM-Signature header exists but is not valid 0.0 T_TO_NO_BRKTS_FREEMAIL T_TO_NO_BRKTS_FREEMAIL The original message was not completely plain text, and may be unsafe to open with some email clients; in particular, it may contain a virus, or confirm that your address can receive spam. If you wish to view it, it may be safer to save it to a file and open it with an editor.

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Generating fresh names in a source plugin
by Wolfgang Jeltsch 02 Aug '25

02 Aug '25

Hello! I want to generate AST fragments in a source plugin, and for this I need to generate fresh (local) names. My current approach is to use `mkSystemName`, but it, like many of the other name-generating operations, needs a value of type `Unique`. How can I generate such values? It seems that the `Hsc` monad doesn’t carry a value of type `UniqueSupply` with it. All the best, Wolfgang

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GHC 9.10.3-rc1 is now available
by Zubin Duggal 30 Jul '25

30 Jul '25

The GHC developers are very pleased to announce the availability of the release candidate for GHC 9.10.3. Binary distributions, source distributions, and documentation are available at [downloads.haskell.org][] and via [GHCup](https://www.haskell.org/ghcup/). GHC 9.10.3 is a bug-fix release fixing over 50 issues of a variety of severities and scopes. 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][]. This release candidate will have a two-week testing period. If all goes well the final release will be available the week of 11 August 2025. 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. [release notes]: https://gitlab.haskell.org/ghc/ghc/-/blob/ghc-9.10/docs/users_guide/9.10.3-… [status]: https://gitlab.haskell.org/ghc/ghc/-/wikis/GHC-status [downloads.haskell.org] https://downloads.haskell.org/ghc/9.10.3-rc1 [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new

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GHC 9.10.2 is now available
by Zubin Duggal 03 May '25

03 May '25

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

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GHC 9.10.2-rc1 is now available
by Ben Gamari 18 Apr '25

18 Apr '25

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. 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][]. This release candidate will have a two-week testing period. If all goes well the final release will be available the week of 1 May 2025. 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, - Ben [release notes]: https://gitlab.haskell.org/ghc/ghc/-/blob/ghc-9.10/docs/users_guide/9.10.2-… [status]: https://gitlab.haskell.org/ghc/ghc/-/wikis/GHC-status [downloads.haskell.org] https://downloads.haskell.org/ghc/9.10.2-rc1 [ticket]: https://gitlab.haskell.org/ghc/ghc/-/issues/new

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GitLab maintenance this evening
by Ben Gamari 14 Apr '25

14 Apr '25

Hello all, Tonight GitLab will be down for maintenance between 17:00 EDT and 18:00 EDT as part of the on-going infrastructure migration. Cheers, - Ben

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gitlab.haskell.org reboot this evening
by Ben Gamari 31 Mar '25

31 Mar '25

Hi all, As part of finalizing the migration I will be rebooting gitlab.haskell.org at 17:00 EDT today. I expect the outage will last around 5 minutes. Cheers, - Ben

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gitlab.haskell.org outage this weekend
by Ben Gamari 30 Mar '25

30 Mar '25

Hi all, As you may know, Haskell.org is currently in the process of moving its infrastructure to new hosting facilities. As part of this effort, GHC's GitLab instance will be taken down for migration on Saturday 29 March 2025 from 09:00 to 17:00. This includes our issue tracker, CI infrastructure, Docker registry, serving of artifacts. Apologies for the inconvenience but we hope that this will be the last time we need to have such a prolonged outage in quite a while. Cheers, - Ben

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Haskell.org mailing list status
by Ben Gamari 20 Mar '25

20 Mar '25

Hi all, As you may have noticed, yesterday brought an unexpected influx of traffic from haskell.org's mailing lists. This was the result of fixing an interruption in mailing list message delivery which began in late February as a result of on-going infrastructure migration efforts. We are monitoring the situation to ensure that this issue does not recur but if you see anything amiss don't hesitate to contact admin(a)haskell.org. Thank you for your understanding and help! Cheers, - Ben

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