CHANGELOG.md in rubocop-rspec-1.20.1 vs CHANGELOG.md in rubocop-rspec-1.21.0

@@ -1,8 +1,14 @@
 # Change log
 
 ## Master (Unreleased)
 
+## 1.21.0 (2017-12-13)
+
+* Compatibility with RuboCop v0.52.0. ([@bquorning][])
+* Improve performance when user does not override default RSpec Pattern config. ([@walf443][])
+* Add `AggregateFailuresByDefault` configuration for `RSpec/MultipleExpectations` cop. ([@onk][])
+
 ## 1.20.1 (2017-11-15)
 
 * Add "without" to list of default allowed prefixes for `RSpec/ContextWording`. ([@bquorning][])
 
 ## 1.20.0 (2017-11-09)