[GR-19220] Update changelog (#2154)

PullRequest: truffleruby/2159

Author: eregon

CHANGELOG.md

@@ -8,16 +8,20 @@ Bug fixes:
 
 * Fix error message when the method name is not a Symbol or String for `Kernel#respond_to?` (#2132, @ssnickolay)
 * Fixed setting of special variables in enumerators and enumerables (#1484).
+* Fixed return value of `Enumerable#count` and `Enumerable#uniq` with multiple yielded arguments (#2145, @LillianZ).
 
 Compatibility:
 
 * Implement `String#undump` (#2131, @kustosz)
 * `Errno` constants with the same `errno` number are now the same class.
 * Implement `Enumerable#tally` and `Enumerable#filter_map` (#2144 and #2152, @LillianZ).
 * Implement `Range#minmax`.
+* Pass more `Enumerator::Lazy#uniq` and `Enumerator::Lazy#chunk` specs (#2146, @LillianZ).
 
 Performance:
 
+* Refactor and implement more performant `MatchData#length` (#2147, @LillianZ).
+* Refactor and implement more performant `Array#sample` (#2148, @LillianZ).
 
 Changes:
 

README.md

@@ -181,7 +181,8 @@ Announcements about GraalVM, including TruffleRuby, are made on the
 
 The main authors of TruffleRuby ordered by first contribution are:
 Chris Seaton, Benoit Daloze, Kevin Menard, Petr Chalupa, Brandon Fish, Duncan
-MacGregor, Christian Wirth, Rafael França, Alan Wu, Nicolas Laurent, Carol Chen.
+MacGregor, Christian Wirth, Rafael França, Alan Wu, Nicolas Laurent, Carol Chen,
+Nikolay Sverchkov, Lillian Zhang.
 
 ## Security