This link also talks about changes to the spec for 4.x (but in more general terms): https://keepass.info/help/kb/kdbx_4.html https://keepass.info/help/kb/kdbx_

This link also talks about changes to the spec for 4.x (but in more general terms): https://keepass.info/help/kb/kdbx_4.html https://keepass.info/help/kb/kdbx_4.html