You wanted it - you got it :) . Someone in the forum asked for a statistic regarding bot. So you can have one now :)

1. Had to separate bot assigned to a chat to a separate column. This will allow us to generate some charts like.
2. Was the chat only with a bot or also operator was involved.

For update just follow standard update procedure For manual update it's update_211.sql

If you want to have capabilities to search by bot for past chats you can run this script from your command line to reindex old chats.

php cron.php -s site_admin -c cron/util/migrate_gbot_id -p 0