Update changelog to mention QUIC fix

Author: MarkusPettersson98

CHANGELOG.md

@@ -22,6 +22,9 @@ Line wrap the file at 100 chars.                                              Th
 * **Security**: in case of vulnerabilities.
 
 ## [Unreleased]
+### Fixed
+- QUIC obfuscation only using one in-address when connecting. It will now randomly select one of
+  the available in-addresses for each connection attempt.
 
 
 ## [2025.10-beta1] - 2025-09-16