You can see past updates on these two threads:
Now that all N2 grammar points are in and accompanied by 12 examples sentences and 12 review questions, we have shifted our focus to adding grammar points that appear in textbooks, but do not yet appear on Bunpro.
Newly added grammar points include breakdowns, 12 example sentences and 12 review questions, external links and textbook page numbers. Audio for each sentence will be added soon!
March 18, 2019<a href="https://bunpro.jp/grammar_points/712" rel="nofollow noopener&qu…
The goal of this tread is provide you with a way to see the updates we make to Bunpro in real time. Since we only tend to post on the site or send an email out for major updates, an update thread will help quench your thirst for progress between those major announcements.
We will update this thread weekly/bi-weekly.
June 3, 2019
New grammar is here! This new batch consists of six grammar points from Tobira:
View New Grammar Points<a href="https://bunpro.jp/grammar_points/638" r…
The schedule /looks/ like 1-2 times per month, except for July. I do get responses to my feedback submissions on the site though, so there are minor adjustments done behind the scenes quite often at least