6.1.0 contains majorly scary architectural changes that will break 100% of the hacks out there.
Nearly half the code has been touched and changed, and ALL of the code has been reformatted & indented (perltidy is your friend). The various programs and systems out there that do automated hacking will NOT be able to apply 6.0x hacks to the 6.1.x series boards.
Nearly all (> 95%) of all board I/O is now handled by a set of common subroutines, including seperate routines for thread data and member data.
Basically, if you've done some hacking for the 6.0x series, you will need to start fresh with the 6.1.x series.
Including the templates.
Note, BTW... The official version scheme is "6.1.0", *NOT* "6.10".