Some hints...
Database wise, from 5.6.1 to 5.6.4, there was minimal changes - just a couple of fields changed.....
Code:
alter table `Profiles` ,change `PrimPhoto` `PrimPhoto` bigint (11) DEFAULT '0' NOT NULL;
update ProfilesDesc set `check`='\$dob=explode(\'-\',\$arg0);\$age=date(\'Y\')-\$dob[0];if(\$dob[1]>date(\'m\')) \$age--;else if((int)\$dob[1]==date(\'m\')) if ((int)\$dob[2]>date(\'d\')) \$age--;if((\$age>=getParam(\'search_start_age\'))&&(\$age<=getParam(\'search_end_age\'))) return true\;else return false\;',because='_AGE_INVALID' where ID=11;
There was some cleanup in the code and some bug fixes including uncommenting a function and so on. If you check the bug fixing forums here on ModMySite, you can see what bugs existed in the various releases.
5.6.4 to 5.6.5 really had no changes, except fixes to Orca.
Smoge
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