changelog for conditional log level for base_prefix strip action

CHANGELOG.md

@@ -16,6 +16,7 @@
 * Fix: storage hook path now added to DELETE, MKCOL, MKCALENDAR, MOVE, and PROPPATCH
 * Add: storage hook placeholder now supports "request" and "to_path" (MOVE only)
 * Improve: catch items having tzinfo only on dtstart or dtend set for whatever reason, overtake tzinfo from the other one
+* Improve: conditional log level for base_prefix strip action depending on auth and web type
 
 ## 3.5.4
 * Improve: item filter enhanced for 3rd level supporting VALARM and honoring TRIGGER (offset or absolute)