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Diffstat (limited to 'docs/users_guide/9.2.1-notes.rst')
| -rw-r--r-- | docs/users_guide/9.2.1-notes.rst | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/docs/users_guide/9.2.1-notes.rst b/docs/users_guide/9.2.1-notes.rst index 96306e4d9c..a29a744f8b 100644 --- a/docs/users_guide/9.2.1-notes.rst +++ b/docs/users_guide/9.2.1-notes.rst @@ -50,7 +50,21 @@ Language * Previously, ``-XUndecidableInstances`` accidentally implied ``-XFlexibleContexts``. This is now fixed, but it means that some programs will newly require ``-XFlexibleContexts``. - + +* Various records-related extensions have been improved: + + - A new extension :extension:`NoFieldSelectors` hides record field selector + functions, so it is possible to define top-level bindings with the same names. + + - The :extension:`DisambiguateRecordFields` extension now works for updates. + An update ``expr { field = value }`` will be accepted if there is a single + field called ``field`` in scope, regardless of whether there are non-fields + in scope with the same name. + + - The :extension:`DuplicateRecordFields` extension now applies to fields in + record pattern synonyms. In particular, it is possible for a single module + to define multiple pattern synonyms using the same field names. + Compiler ~~~~~~~~ |