Provided by: libjifty-perl_1.10518+dfsg-3ubuntu1_all 

NAME
Jifty::Upgrade::Internal - Upgrades to Jifty-specific schema and data
UPGRADES
Version 0.60427 Version metadata, previously stored in _db_version, get migrated to _jifty_metadata, so it could be used to store more than one row usefully.