Update CHANGELOG.md

Author: apparentlymart

CHANGELOG.md

@@ -1,5 +1,7 @@
 # 1.14.3 (Unreleased)
 
+* `msgpack`: Fixed edge-case bug that could cause loss of floating point precision when round-tripping due to incorrectly using a MessagePack integer to represent a large non-integral number. [#176](https://github.com/zclconf/go-cty/pull/176)
+* `cty`: Fixed some false-negative numeric equality test results by comparing numbers as integers when possible. [#176](https://github.com/zclconf/go-cty/pull/176)
 
 # 1.14.2 (January 23, 2024)