Title: VIP MU plugins v20260901.0
Author: WordPress VIP Documentation
Published: September 1, 2026

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 1. [Changelog](https://docs.wpvip.com/changelog/)
 2. [VIP MU plugins [Production]](https://docs.wpvip.com/changelog/vip-mu-plugins-production/)
 3. VIP MU plugins v20260901.0

# VIP MU plugins v20260901.0

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 01 September 2026

18:01:39 GMT+0000

 [ VIP MU plugins [Production] ](https://docs.wpvip.com/changelog/vip-mu-plugins-production/)

 [ GitHub  ](https://github.com/Automattic/vip-go-mu-plugins/pull/7224)

 [ Permalink  ](https://docs.wpvip.com/changelog/vip-mu-plugins-production/vip-mu-plugins-v20260901-0/)

View Pull Request: [https://github.com/Automattic/vip-go-mu-plugins/pull/7224](https://github.com/Automattic/vip-go-mu-plugins/pull/7224)

### Changed

 * HyperDB: Updated to the latest upstream version.
 * Real-Time Collaboration: Moved collaboration and its bundled HTTP polling provider
   behind one opt-in Gutenberg experiment, disabled by default, while allowing plugins
   to replace the default provider.
 * Real-Time Collaboration: Enabled Gutenberg’s unified real-time collaboration 
   experiment by default and moved its control from Gutenberg’s Experiments page
   to the VIP Real-Time Collaboration settings page.
 * Updated the default version of wp-parsely to 3.24.

### Added

 * Real-Time Collaboration: Added session-scoped Anonymous User identities so authorized
   collaborators could continue editing when WordPress user profiles were unavailable.
 * Real-Time Collaboration: Added an emergency fallback setting that disabled collaboration
   and the VIP WebSocket provider together.
 * Real-Time Collaboration: Added an admin notice when the installed Gutenberg version
   was older than the required `23.8.0`.

### Fixed

 * Real-Time Collaboration: Prevented misplaced collaborator cursors, selections,
   and highlights inside collapsed content, showed presence on the nearest visible
   container, and revealed collapsed Details content when navigating to a collaborator.