Hi Linda,

That would be an unsupported configuration. Forms 11 Update 2 involves database schema changes (see list of changes). It may not even be technically possible to do because one of the instances might detect a mismatch between the software version and the database schema version and refuse to run. Even if it does run, there is a potential to mess up the Forms database in ways that may not be easy to detect and/or recover from. We do not test different Forms update packs/versions for compatibility with each other and Support cannot help you with any issues that may result.

Always upgrade any Forms instances linked to the same database and Routing Engine together.
(Unless specifically instructed otherwise by Laserfiche Support as part of a case).