Details for the July 2019 Update:
The big 6:
1 - Handwriting input
Anytime you see that little squiggle (Dictionary and Quizzing), tap it to get your own handwriting pad! Practice your writing while you study!
2 - Kanji Mnemonics
A mnemonic is any kind of memory trick to help you remember something. Take advantage of the growing mnemonics already in the site and more easily remember kanji, regardless of how complex they are!
3 - Personalized definitions
A quick tap on a definition to customize it however you'd like! All personalized definitions are kept private.
4 - Simplified study center! (formerly study library)
Fewer buttons, a cleaner interface, and more information to help you quickly get to what you need.
5 - Vocabulary images
Hundreds of pictures (with more every day) of vocabulary terms to help enhance retention! Add your own images with a simple image searcher!
6 - Expanded grammar quizzing for free users (available now!)
Now, instead of full access to just a few grammar lessons, non-renshuu pro users can get a small taste of every grammar lesson available in the site! Join renshuu pro to add thousands of additional questions and get a full mastery of the grammar you need.
The rest:
Grammar quiz feedback - now, anytime you choose a grammar answer that is incorrect and a different grammar expression, the site will not only show you the correct answer, but information about the answer you chose as well.
Term tinkerer - click the Tools icon on any term list to get quick access to tools that affect many terms at once. Great if you're looking to quickly mark your knowledge level of multiple terms. This existed before, but has been completely rewritten.
Schedule admin - click the settings icon in Learn > Schedules to quickly manipulate multiple schedules at once!
Quick term marking - when terms are introduced into a schedule, quickly mark ones you already know and don't waste time building them up.
Dictionary update - tens of thousands of new terms added, vocabulary classifications so you can easily see how common a term is (must be enabled in settings), groupings of similar vocabulary terms, and alternate kanji versions now displayed.
Faster site - everything loads faster on the site!
Contests incoming!
We've got some contests for the summer as well as some really easy ways for you to get some renshuu pro without paying! Stay tuned.