The last testing was released a couple of days off 4 weeks ago:
The notes have been edited once since then.
Even when/if this testing goes live, it’s not exactly gonna be a content drop as such, as it’s some new rules about beacons and a way for people to get the shopping data outside the game.
If you are looking for actual new content in the live game, it might be a while!
In case you are interested, the last release to live that brought new content was 235 back in November, which brought us chisellable glass (I know gleambow, oortmas and lovestruck have arrived since then, but they are repeats of previous events, all be it with one or 2 temporary new items, but I find that a stretch to call those a ‘new content drop’!)