Ive been wondering, since its been 10 11 months now since QuiteRSS has been updated, or is this project abandoned?
I don't know where you got the idea that the last release was 10-11 months ago, the latest releases were in August and September this year. (check the download page). If you want to check the state of development or have a 'bug' then look at the GitHub page and report any bug there.
the latest official version was relesed on 2016-03-08.
The project often has long development intervals.
But don't worry! It will be continued!