There's a bunch of compatibility code supporting the old Transaction.register and DataManager.prepare APIs. That code is either documented as deprecated, commented as deprecated, or not documented at all. It hasn't been the supported protocol since transaction became its own distribution.
Removing it doesn't break any ZODB tests (except tests that are explicitly using testing the legacy functions).
There's a bunch of compatibility code supporting the old
Transaction.registerandDataManager.prepareAPIs. That code is either documented as deprecated, commented as deprecated, or not documented at all. It hasn't been the supported protocol since transaction became its own distribution.Removing it doesn't break any ZODB tests (except tests that are explicitly using testing the legacy functions).