Breaking: #107310 - Remove FreezableBackendInterface 

See forge#107310

Description 

The interface \TYPO3\CMS\Core\Cache\Backend\FreezableBackendInterface has been removed from the TYPO3 Core.

It previously defined the following methods:

  • freeze() — Freezes the cache backend.
  • isFrozen() — Returns whether the backend is frozen.

Impact 

Any code implementing or referencing \FreezableBackendInterface will now trigger a PHP fatal error.

Since this interface was never implemented in the TYPO3 Core and had no known real-world usage, the overall impact is expected to be minimal.

Affected installations 

Installations with custom extensions that implement or reference the \FreezableBackendInterface are affected.

Migration 

Remove any references to \FreezableBackendInterface from your extension code.

If you require freeze functionality, implement the desired behavior directly in your custom cache backend class.