docs: update CHANGES.md

CHANGES.md

@@ -6,13 +6,30 @@ Version 5.4.2
 
 To be released.
 
+### Backward-incompatible API changes
+
+ -  Removed `ContextTimeoutOption` class. Instead, added `ContextOption` class.
+    [[#4007]]
+ -  Removed `ConsensusReactorOption.ContextTimeoutOptions` property.
+    Instead, added `ConsensusReactorOption.ContextOption` property.  [[#4007]]
+ -  `ConsensusReactor` constructor requires `ContextOption` parameter
+    instead of the `ContextTimeoutOption` parameter.  [[#4007]]
+
+### Behavioral changes
+
+ -  `Gossip.RebuildTableAsync()` now bootstrap peers from the seed peers.
+    [[#4007]]
+
+
+[#4007]: https://github.com/planetarium/libplanet/pull/4007
+
 
 Version 5.4.1
 -------------
 
 Released on November 22, 2024.
 
--  Ported changes from [Libplanet 5.3.2] release.  [[#3973]]
+ -  Ported changes from [Libplanet 5.3.2] release.  [[#3973]]
 
 [#3973]: https://github.com/planetarium/libplanet/pull/3973
 [Libplanet 5.3.2]: https://www.nuget.org/packages/Libplanet/5.3.2