Meta Quest announced that Meta engineers have recently completed the necessary work to transition to Unreal Engine 5, providing official support for Unreal Engine 5.1.
Meta Quest says that v49 will be the last update to include new features for Unreal Engine 4, and v55 will contain the last patch for Unreal Engine 4 (currently scheduled for release in June 2023).
After the release of the final Unreal Engine 4 patch for v55, VR Support will no longer provide work orders related to Unreal Engine 4. There will also be no new features or routine bug fixes released for Unreal Engine 4 after v55.
Meta Quest recommends that developers do not upgrade their Unreal Engine version for now and can still use Unreal Engine 4 to distribute their apps to the Meta Quest Store or App Lab. If app development upgrades to Unreal Engine 5, architectural changes may result in minor app performance issues. Critical bug fixes will be available for Meta Quest until the end of 2023.
The announcement that Meta Quest 1 will no longer be supported, however, Meta plans to provide an upgrade path for developers.