CHANGELOG.md in activesupport-6.0.0.rc1 vs CHANGELOG.md in activesupport-6.0.0.rc2

@@ -1,4 +1,28 @@
+## Rails 6.0.0.rc2 (July 22, 2019) ##
+
+*   `truncate` would return the original string if it was too short to be truncated
+    and a frozen string if it were long enough to be truncated. Now truncate will
+    consistently return an unfrozen string regardless. This behavior is consistent
+    with `gsub` and `strip`.
+
+    Before:
+
+        'foobar'.truncate(5).frozen?
+        # => true
+        'foobar'.truncate(6).frozen?
+        # => false
+
+    After:
+
+        'foobar'.truncate(5).frozen?
+        # => false
+        'foobar'.truncate(6).frozen?
+        # => false
+
+    *Jordan Thomas*
+
+
 ## Rails 6.0.0.rc1 (April 24, 2019) ##
 
 *   Introduce `ActiveSupport::ActionableError`.
 
     Actionable errors let's you dispatch actions from Rails' error pages. This