I have just downloaded and upgraded to 1.33.9 Build 20260401 Rel.45256 firmware version for Omada Controller OC300 v1. Everything operates OK so far. But after installation I noticed that it is marked as Release Candidate. The problem is, that I am not subscribed to any beta testing. I downloaded it from the official site of TP-Link: 

https://support.omadanetworks.com/en/product/oc300/v1/?resourceType=download

and there are no mentions there that it is not a final version, official release.

Is it possible to clearly mark at the download site which version is a release candidate and which is the final one? As you can know it right now ONLY AFTER THE INSTALLATION (UPGRADE)?