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-rw-r--r--NEWS5
1 files changed, 3 insertions, 2 deletions
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@@ -78,8 +78,9 @@ with all sufficient information, see the ChangeLog file or Redmine
=== Compatibility issues (excluding feature bug fixes)
-* Array#sum is implemented. Ruby itself has no compatibility problem
- because Ruby didn't have sum method for arrays before Ruby 2.4.
+* Array#sum is implemented. [Feature #12217]
+ Ruby itself has no compatibility problem because Ruby didn't have sum method
+ for arrays before Ruby 2.4.
However many third party gems, activesupport, facets, simple_stats, etc,
defines sum method. These implementations are mostly compatible but
there are subtle differences.