Yep the updates are sync’ed. So you can hit one button and it will update both base and action pack. If you have the action pack, it becomes integrated, for all intents and purposes, with the base as a single product - just in two different folders.
An update dropped today - 363 - which I haven’t tried yet, but it fixes and fine tunes the previous 362 which worked brilliantly with the native msfs heli flight model and controls as far as I am concerned.
I agree in general about discord. However in the case of HYPE, the kind of support they provide (ie. practically real time) could not be done effectively on a forum. Also, besides the devs themselves, there are a ton of very helpful people who will immediately jump in and answer questions and problem solve. Many have been instrumental in testing the beta fm changes and providing feedback. There’s also a current professional H145 pilot from Finland who is on sometimes with interesting insights and tips.
Short of it - I cannot recommend the H145 highly enough. More so than any other addon I have bought.