Mention new feature of Hash#transform_keys [Feature #16273]
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@ -18,6 +18,12 @@ sufficient information, see the ChangeLog file or Redmine
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=== Core classes updates (outstanding ones only)
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Hash::
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Modified method::
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* Hash#transform_keys now accepts a hash that maps keys to new keys. [Feature #16274]
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=== Stdlib updates (outstanding ones only)
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=== Compatibility issues (excluding feature bug fixes)
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