Yeah, without any hesitation do go-ahead and install the latest. Updates are very important, so do remember always be up-to-date.<. 
They are not ignoring the customers, actually what’s happening is: they are not able to deliver the requested thing properly and not even on time.
For PRIMEBOOK
What I would suggest for prime book team is, to release the updates more frequently. A lesson that needs to be learned is: Once you fix an issue release it, do not hold it till all the features are updated. Do not think like: Released it last week, why release now.? Next month release or have a fixed schedule. .. 
No don’t do this.
For instance: On March first week, I bought a new Vivo phone. Since then I had gone through 5 Funtouch OS Version updates. I bought this PRIMEBOOK on January second week, just had couple of updates of Prime OS, (feb & may) that’s it.
One more thing I would like to add is: Keep a log topic in this discord community where, every update is logged in. Release date, version, changes made, new features, updates data etc, log it in and show it to the community. In future you’ll thank me for this. If you want to grow then improve this community first, with satisfied community members.