Re: [Haskell-cafe] ANNOUNCE: GHC version 7.10.2

There was talk from an earlier email thread of releasing the Haskell Platform at the same time as 7.10.2. I am referring to the weekly news of 2015/05/11: https://ghc.haskell.org/trac/ghc/blog/weekly20150511 and this email thread: https://mail.haskell.org/pipermail/ghc-devs/2015-May/008911.html Was this plan abandoned? Or was there something unexpected that is delaying it? James On Thu, Jul 30, 2015 at 2:07 PM, Ben Gamari wrote:

Hello again!

See below for an important announcement regarding the `text` issue described earlier.

Ben Gamari writes:

...

===================================================================== The (Interactive) Glasgow Haskell Compiler -- version 7.10.2 =====================================================================

The GHC Team is pleased to announce a new bug-fix release of GHC, 7.10.2.

There have been a number of significant bug fixes since the 7.10.1 (with over 70 defects fixed). These include fixes affecting type-checker correctness, runtime stability, and compiler performance. For this reason we highly recommend that users of 7.10.1 upgrade quickly.

Note that due to changes made in this release to GHC's optimizer, previously fragile-but-working rewrite rules may fail to fire. One example of this was found in the widely-used `text` package late in the release cycle, which manifested in long compilation times and poor code generation for `Text` literals (see [Trac #10528]). Users are advised to use text >=1.2.1.2 which includes more robust rewrite rules.

It has been brought to my attention that the fix included in text-1.2.1.2 does not in fact fix the rule issues triggered by GHC 7.10.2 (see the later comments on #10528 for details). I have pushed text-1.2.1.3 to Hackage which finally resolves this issue.

Users of GHC 7.10.2 should upgrade to text >=1.2.1.3 at their earliest convenience.

Cheers,

- Ben

_______________________________________________ Haskell-Cafe mailing list Haskell-Cafe@haskell.org http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe