Add Reblog fix to CHANGELOG

CHANGELOG.md

@@ -50,6 +50,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/).
 - Users with `is_discoverable` field set to false (default value) will appear in in-service search results but be hidden from external services (search bots etc.).
 - Streaming API: Posts and notifications are not dropped, when CLI task is executing.
 - Creating incorrect IPv4 address-style HTTP links when encountering certain numbers.
+- Reblog API Endpoint: Do not set visibility parameter to public by default and let CommonAPI to infer it from status, so a user can reblog their private status without explicitly setting reblog visibility to private.
 
 <details>
   <summary>API Changes</summary>