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authorakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-04-15 15:26:48 +0000
committerakr <akr@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>2016-04-15 15:26:48 +0000
commit4873e62103a6f72b6cc7031680a80fec59122607 (patch)
tree3606e382f75ee3e9c3c1729daf3aee6fe33e1259 /NEWS
parentd1d95056a3252858b383078c45a38cda696bb1a4 (diff)
downloadruby-4873e62103a6f72b6cc7031680a80fec59122607.tar.gz
mention Array#sum with third-party gems.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54604 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'NEWS')
-rw-r--r--NEWS12
1 files changed, 9 insertions, 3 deletions
diff --git a/NEWS b/NEWS
index 80dda64527..b92feae43b 100644
--- a/NEWS
+++ b/NEWS
@@ -68,9 +68,15 @@ with all sufficient information, see the ChangeLog file or Redmine
* Add an into option. [Feature #11191]
-=== Stdlib compatibility issues (excluding feature bug fixes)
-
-=== Built-in global variables compatibility issues
+=== 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.
+ However many third party gems, activesupport, facets, simple_stats, etc,
+ defines sum method. These implementations are mostly compatible but
+ there are subtle differences.
+ Ruby's sum method should be mostly compatible but it is impossible to
+ be perfectly compatible with all of them.
=== C API updates