The older versions have a compatible database format except for the compact binary import group type.
If for some reason you want to run an older version before v7+ after using compact binary import groups - v5.9.9.9 will revert the change.
Up-to-date:
v5.9.9.9 (64/32)
Contact support if you are not able to run at least up-to-date v5.9.9.9 above (any purchase date) or up-to-date v7+ version based on the lost key resend email.
Note that reported/detected bugs will be fixed irrespective of eligibility for upgrades as per license terms.
Stay up-to-date by leaving 'Edit menu->Properties->General, Check for updates' or (v7.6.6b+ only) 'Check for up-to-date updates' checked.
Selected older releases for registered users
(for archive purpose only):
v4.9.9 (64/32)
v3.7.4 (64/32)
v2.9.8 (64/32)
v1.9.9 (32)
