There are many more small changes and innovations, that If you put together you actually see how much work was done by theymos just for this one year:
Here are those I remember:

- new report history stats accessed after 300 good reports
- hompgraphs are converted automatically to Latin, so plagiarism cannot be missed.
- captcha fix for logging using tor( bypassing)
- no signatures in the Ivory tower and serious discussion
- forum segwit support
- some new data dupms
- some new moderators
- "last edit" for mobile devices
- the 24hour-no-delete  rule in the Altcoin section

... I'm probably missing some other ones but those are enough