Added release notes and version entries for 2025.50.1

Author: GitHub Actions

blog/2025-11-21-Release-0.md

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+---
+author: meshcloud
+title: Release 2025.50.1
+---
+
+Release period: 2025-11-19 to 2025-11-21
+
+This release includes the following issues:
+* Fixed Error When Accepting User Invitations
+<!--truncate-->
+
+## Ticket Details
+### Fixed Error When Accepting User Invitations
+**Audience:** User<br>
+
+#### Description
+We fixed an issue where accepting a user invitation could fail with a database error. This prevented invited users
+from successfully activating their accounts and accessing their assigned workspaces.
+
+#### How to use
+Invited users can now accept their invitations without encountering errors. The invitation acceptance process works
+smoothly, properly enabling the user account and setting up the associated workspace bindings.
+