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-rw-r--r--NEWS8
1 files changed, 7 insertions, 1 deletions
diff --git a/NEWS b/NEWS
index 4ca91819c8e..0d1d7820e6e 100644
--- a/NEWS
+++ b/NEWS
@@ -27,11 +27,17 @@ with all sufficient information, see the ChangeLog file or Redmine
now ignored. You should also redefine Array#max.
* Array#sum [Feature #12217]
+ This is different from Enumerable#sum in that Array#sum doesn't depend on
+ the definition of each method.
* Dir
* Dir.empty?. [Feature #10121]
+* Enumerable
+
+ * Enumerable#sum [Feature #12217]
+
* File
* File.empty?. [Feature #9969]
@@ -79,7 +85,7 @@ with all sufficient information, see the ChangeLog file or Redmine
=== Compatibility issues (excluding feature bug fixes)
-* Array#sum is implemented. [Feature #12217]
+* Array#sum and Enumerable#sum are 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,