diff --git a/CHANGELOG.md b/CHANGELOG.md
index e5ac2203..31ac0b1d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,24 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
+## [5.5.0] - 2022-04-28
+### Changed:
+- **[Command permissions have been deprecated](https://link.snaz.in/sc-cpd)**, including these methods/options:
+  - `SyncCommandOptions#syncPermissions`
+  - `SlashCreator#syncCommandPermissions`
+  - `SlashCommandOptions#permissions`
+  - `SlashCreatorAPI#bulkUpdateCommandPermissions`
+- **SlashCommandOptions:** `#requiredPermissions` now sets member permissions within the command using `default_member_permissions`.
+- **SlashCommand:** `#commandJSON` is now deprecated in favor of `#toCommandJSON`.
+### Added:
+- **Permissions:** New flags: `SEND_MESSAGES_IN_THREADS`, `USE_EMBEDDED_ACTIVITIES`, `MODERATE_MEMBERS`
+- **ApplicationCommandPermissionType:** New type: `CHANNEL = 3`
+- **SlashCommandOptions:** Added `#dmPermission`
+- **SlashCreatorAPI:** Added `withLocalization` option to `#getCommands`
+- **CommandContext:** Initial response attachments support
+### Fixed:
+- Permission names in constants being outdated
+- `SlashCommandOptions#requiredPermissions` option checking
 ## [5.4.1] - 2022-03-30
 ### Fixed:
 - Fixed syncing erroring for old command classes
@@ -405,7 +423,7 @@ This release features mostly completed documentation and changes to the packages
 ## [0.1.0] - 2020-12-15
 - Initial release.
 
-[Unreleased]: https://github.com/Snazzah/slash-create/compare/v5.4.1...HEAD
+[Unreleased]: https://github.com/Snazzah/slash-create/compare/v5.5.0...HEAD
 [0.1.0]: https://github.com/Snazzah/slash-create/releases/tag/v0.1.0
 [0.2.0]: https://github.com/Snazzah/slash-create/compare/v0.1.0...v0.2.0
 [1.0.0]: https://github.com/Snazzah/slash-create/compare/v0.2.0...v1.0.0
@@ -455,3 +473,4 @@ This release features mostly completed documentation and changes to the packages
 [5.3.0]: https://github.com/Snazzah/slash-create/compare/v5.2.1...v5.3.0
 [5.4.0]: https://github.com/Snazzah/slash-create/compare/v5.3.0...v5.4.0
 [5.4.1]: https://github.com/Snazzah/slash-create/compare/v5.4.0...v5.4.1
+[5.5.0]: https://github.com/Snazzah/slash-create/compare/v5.4.1...v5.5.0
diff --git a/package.json b/package.json
index c4ccfdab..f6795ae6 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "slash-create",
-  "version": "5.4.1",
+  "version": "5.5.0",
   "description": "Create and sync Discord slash commands!",
   "main": "./lib/index.js",
   "types": "./lib/index.d.ts",