What is difference between fix forward and a restore?

[Donna12]

I will be installing the High security plug-in + update a few hundred custom ACL.  It was suggested as a back out plan to do a fix forward instead of a restore?  what's the difference.  How does one prepare for a smooth 'fix forward'?  Thanks

[emir]

Fix forward means fix it as you identify issues/you do not roll back.

Restore means you go back to the previous version (previous successful version).

Some things cannot be rolled back (restored) so they have to be fixed forward as they occur.

[Donna12]

Thanks for your general reply.