Hello again! See below for an important announcement regarding the `text` issue described earlier.
Ben Gamari <b...@well-typed.com> 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
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