Changelog and readme.txt edits. (#41674)

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/13266755474

Upstream-Ref: Automattic/jetpack@2134a30

CHANGELOG.md

@@ -5,13 +5,10 @@ All notable changes to this project will be documented in this file.
 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).
 
-## [6.4.0-alpha] - unreleased
-
-This is an alpha version! The changes listed here are not final.
-
+## [6.4.0] - 2025-02-10
 ### Changed
-- Tracks: Add site type to events
-- Updated package dependencies.
+- Tracks: Add site type to events [#41307]
+- Updated package dependencies. [#41491]
 
 ## [6.3.2] - 2025-02-03
 ### Changed
@@ -1306,7 +1303,7 @@ This is an alpha version! The changes listed here are not final.
 
 - Separate the connection library into its own package.
 
-[6.4.0-alpha]: https://github.com/Automattic/jetpack-connection/compare/v6.3.2...v6.4.0-alpha
+[6.4.0]: https://github.com/Automattic/jetpack-connection/compare/v6.3.2...v6.4.0
 [6.3.2]: https://github.com/Automattic/jetpack-connection/compare/v6.3.1...v6.3.2
 [6.3.1]: https://github.com/Automattic/jetpack-connection/compare/v6.3.0...v6.3.1
 [6.3.0]: https://github.com/Automattic/jetpack-connection/compare/v6.2.2...v6.3.0

src/class-package-version.php

@@ -12,7 +12,7 @@
  */
 class Package_Version {
 
-	const PACKAGE_VERSION = '6.4.0-alpha';
+	const PACKAGE_VERSION = '6.4.0';
 
 	const PACKAGE_SLUG = 'connection';