I did a quick test run and sadly didn't notice much improvement:
The cursor key now moves the cursor to the next word instead of the next letter in Latin alphabet books
Arabic and Hebrew letters are still not correctly displayed.
(character shaping doesn't work; text is displayed LTR)
Dictionary lookup word segmentation still doesn't work with French accented characters, German umlauts etc.
(For example, if you position the cursor before the French word "très", it tries to find "tr" in the default dictionary, because the word segmentation algorithm apparently considers all non-English characters word delimiters.)
It'd be great if the developers focused on fixing these basic functionality issues instead of constantly adding features that nobody requested and few users will appreciate.