ABP for Firefox and ABP for Opera are completely different extensions, so their development is not the same and they are not updated at the same time.
(But ABP for Opera and ABP for Chrome are much more similar, and their stable versions are usually updated at the same time. Their latest version should be 1.7.3)
If you found any bug in ABP for Opera, please check in the ABP for Opera forum
if it hadn't been already reported, and if not please create a new topic describing the bug.