# -*- rdoc -*- = NEWS for Ruby 2.7.0 This document is a list of user visible feature changes made between releases except for bug fixes. Note that each entry is kept so brief that no reason behind or reference information is supplied with. For a full list of changes with all sufficient information, see the ChangeLog file or Redmine (e.g. https://bugs.ruby-lang.org/issues/$FEATURE_OR_BUG_NUMBER) == Changes since the 2.6.0 release === Language changes * Method reference operator, .: is introduced as an experimental feature. [Feature #12125] [Feature #13581] * Proc.new and proc with no block in a method called with a block is warned now. * lambda with no block in a method called with a block errs. === Core classes updates (outstanding ones only) Enumerable:: New method:: * Added Enumerable#tally. [Feature #11076] === Stdlib updates (outstanding ones only) CSV:: * Upgrade to 3.0.4. See https://github.com/ruby/csv/blob/master/NEWS.md. RSS:: * Upgrade to RSS 0.2.8. See https://github.com/ruby/rss/blob/master/NEWS.md. === Compatibility issues (excluding feature bug fixes) === Stdlib compatibility issues (excluding feature bug fixes) === C API updates === Implementation improvements === Miscellaneous changes * Require compilers to support C99 [Misc #15347] * Details of our dialect: https://bugs.ruby-lang.org/projects/ruby-trunk/wiki/C99