OmniFocus aims to retain backwards compatibility with earlier versions of the app as much as possible, but sometimes updates to the OmniFocus databse format are required in order to support new features. Updates to the database format are always opt-in — see more about migrating to a newer database format here — but once you do update the databse format, you will lose the ability to sync with earlier versions of the app.
Compatibility with OmniFocus 4
Below is a list earlier versions of OmniFocus that are capable of syncing with latest version of OmniFocus 4. These earlier versions of OmniFocus are the most up-to-date versions of the app supported by older versions of macOS, iOS, and iPadOS.
Be aware that if your database has already been migrated to use a newer databse format, you will need to downgrade your database format in order to sync with an older version that doesn’t support all the latest databse capabilities. For more on that, see Reverting to a previous databse format.
Mac
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3.15.5
Fully compatible
Requires macOS 11 or newer -
3.11.7
Fully compatible
Requires macOS 10.14 or newer -
3.4.6
Lacks support for Floating Time Zones
Requires macOS 10.13 or newer -
2.12.4
Lacks support for Floating Time Zones and Dropped Actions
Requires macOS 10.12 or newer
iPhone and iPad
-
3.15.5
Fully compatible
Requires iOS / iPadOS 14 or newer -
3.11.7
Fully compatible
Requires iOS 13 / iPadOS or newer -
3.3.7
Lacks support for Floating Time Zones
Requires iOS 11.3 or newer -
2.22.5
Lacks support for Floating Time Zones and Dropped Actions
Requires iOS 11.3 or newer
Reverting to a previous databse format
If you want to rollback to a previous databse format in order to continue syncing with an older version of OmniFocus, you have two options:
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OmniFocus takes a backup before migrating to a newer databse format, so if you just recently migrated you can try reverting to backup from before you migrated. For more information on reverting to a backup, see our support articles for Mac and iOS.
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If you no longer have a backup you can revert to or don’t want to lose changes you made post-migrating, email our Support team to get our assitance with downgrading the format of your current database.
