I am using 15.1
I am planning to downgrade to 14.2 Real Soon Now (TM)
The problem is, it crashes very irregularly. Sometimes it goes a week or two without a hiccup, once it crashed 3 times in a row in one html file. If I was near my PC at that moment I would have downgraded immediately. When I did get home the device was behaving well again and I was busy, an tired, and ... . I have vowed several times that I would downgrade as soon as I get to my PC, locate 14.2 version and have a few spare minutes.
Besides, 15.1 contains a few features that I find interesting.
We were told quite a long time ago that the new version is being betatested by Forkosigan, and after that the company is uncharacteristically quiet. Perhaps if I was able to follow the German speaking forum where most of the things (regarding PocketBook) happen on Mobileread I would be wiser. We - the English speaking PB owners and enthusiasts - only learn anything when Ulli or other bilingual fellow PocketBook enthusiast takes a pity and translates a post of two for us
By the way, the third party FBReader first developed by SciFiFan and now by Granym, bring much, *MUCH*, more improvement to the device than upgrading from 14.2 to 15.1 did.
I wonder if Guys in Kiev
plan to backport some features from the "wrist pageturn version"?