Glad to hear about the dictionary update. I know this didn't work on 2.9.0 as I tried it myself. I also am tired of them giving a definition by explaining an adjective by telling us the noun form. If I knew what the noun meant then I wouldn't be looking up the adjective dammit!
Also, I thought this was a Kobo firmware thread - where is the outrage and hatred?
Also, I sideloaded 2.90 on my HD. Can I safely upgrade to 2.10.0 normally?