Добрый день @valery-kondakoff,
no it’s not a regression ! Just a question of delay after BP’s update. Translations are made by volonteers, which are humans, not programmed machines. You have to wait that the translation is completed.
Or you can download the trunk version, which is already completed to 100%.
https://translate.wordpress.org/projects/wp-plugins/buddypress/dev/ru/default
At the page bottom you have a download button and a file type selector. Select po and mo format and rename both files to buddypress-ru_RU
Thank you for explanation!
That was a surprise for me, as yesterday BuddyPress ru_RU was 100% translated by me – both dev and stable.
I re-imported translations, so now everything is 100%.
@slaffik, @djpaul,
had the same surprise this morning, and had to re-import too.