For rule developers and committers: The recent "live-checking" changes in the browser add-ons mean that our server has more work to do now. To keep up with the growing load, I'm going to change the server setup. Details are not yet decided, but the HTTP API (which powers many add-ons and languagetool.org itself) will probably run in the cloud, distributed to several servers.
For you as a rule developer, this means there's not a specific time of a day anymore when the new release gets deployed. Instead, it might get deployed at different times. While I'm working on the new setup, you might also sometimes get results from a version of LT that's not the very latest built, but a few days old. Once the new setup has been implemented, the situation should become more stable again.