CHANGELOG.md in unicode-display_width-2.0.0.pre1 vs CHANGELOG.md in unicode-display_width-2.0.0.pre2

@@ -1,9 +1,13 @@
 # CHANGELOG
 
-## 2.0.0.pre.1 (unreleased)
+## 2.0.0.pre2
 
+- Update 2.0 branch to Unicode 13
+
+## 2.0.0.pre1
+
 Will be published as non-pre version on rubygems.org when Ruby 3.0 is released (December 2020)
 
 - Introduce new class-based API, which remembers your string-width configuration. See README for details.
 - Remove auto-loading of string extension
   - You can: `require "unicode/display_width/string_ext"` to continue to use the string extension
@@ -13,9 +17,13 @@
 
 Refactorings / Internal Changes:
 
 - Freeze string literals
 - The Unicode::DisplayWidth now is class, instead of a module, this enables the new config-object API
+
+## 1.7.0
+
+- Unicode 13
 
 ## 1.6.1
 
 - Fix that ambiguous and overwrite options where ignored for emoji-measuring