Current version
The most recently released version of the Revive Adserver REST API is v5.1.0 (publication date April 15, 2022).
See Release Notes
Compatibility
Revive Adserver REST API is compatible with all versions of Revive Adserver v4.x, v5.0.x, v5.1.x, v5.2.x, v5.3.x, and v5.4.x. It may also be compatible with Revive Adserver v3.x (and also with OpenX Source v2.8 and higher), but this can not be guaranteed.
Revive Adserver REST API is compatible with all supported versions of PHP, including PHP 7 and PHP 8.
Also see Technical Requirements, Product Content, and Installation Instructions.