Changelog pin permissions (#7770)

Author: anthonydiscord

docs/change-log/2025-08-20-pin-permission-split.md

@@ -0,0 +1,9 @@
+---
+title: "Pin Permission Split"
+date: "2025-08-20"
+breaking: true
+topics:
+- "HTTP API"
+---
+
+[Pinning](/docs/resources/message#pin-message) and [unpinning](/docs/resources/message#unpin-message) messages now has its own [permission](/docs/topics/permissions#permissions-bitwise-permission-flags). We split `PIN_MESSAGES` out of `MANAGE_MESSAGES` to give more granular control over who can pin messages in a channel. This is effective immediately for both users and apps. This change will be backwards compatible until January 12th 2026 when `MANAGE_MESSAGES` will no longer grant the ability to pin or unpin messages.