Update changelog

Author: Gerrit0

CHANGELOG.md

@@ -6,12 +6,19 @@ title: Changelog
 
 ### Features
 
--   The `--favicon` option may now be given a link starting with `https?://` instead of a path, #2851.
+-   The `visibilityFilter` option now supports individual signatures, #2846.
+-   The `favicon` option may now be given a link starting with `https?://` instead of a path, #2851.
 -   TypeDoc now supports specifying `#` as the link in `externalSymbolLinkMappings` to indicate the type should not be linked to, #2853.
 
 ### Bug Fixes
 
 -   Fixed an issue where unrecognized languages would incorrectly be listed in the list of languages with translations, #2852.
+-   Unresolved external type references will no longer incorrectly linked to `undefined`, #2854.
+
+### Thanks!
+
+-   @pjeby
+-   @XeroAlpha
 
 ## v0.27.7 (2025-02-09)