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.
Download Page: GHC 9.0.2 download — The Glasgow Haskell Compiler
Blog Post: GHC 9.0.2 is now available — The Glasgow Haskell Compiler
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 thenativebig integer backend (#18967, #19953) on both
Windows and Alpine Linux. Some previous releases were still linked
against theGMPlibrary due to a misconfiguration of the builders. -
A significant refactoring of
processfixing numerous bugs mostly on
Apple platforms (#19994, process refactoring). -
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.
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!
