This is an Android bugfix release. On new installs some files that should've been set as executable weren't, the main effect of which is that the dictionary wouldn't work (#5347). This doesn't affect users who upgraded.
There was also an issue related to dropping Noto from the package (koreader/koreader-base#971), mainly resulting in HTML dictionaries not working. This also doesn't affect users who upgraded.
A few minor touch-ups are included. As usual, we'd like to thank all contributors for their efforts.