[Dennis Allison]

...

We are (finally) moving to repozo for our backups. We are running a mixed collection of Zopes -- mostly Zope 2.7.6, Zope 2.8.X and Zope 2.9.0. For the near term we cannot move to a single release. There are differences between the versions of repozo distributed with the different Zope systems.

I assume that the they are backward compatible and that the repozo.py shipped with Zope 2.9.0 is compatible with all variations of the Data.fs format.

[Chris Withers]

I would play it safe and use the repozo.py appropriate for each version of Zope you're using to drive each ZEO server...

It's probably safest to use the most recent version of repozo with all: repozo hasn't grown new features, but it has gotten bugfixes, and pretty much regardless of the software in question the most recent release is the one most likely to contain all bugfixes to date. repozo in particular doesn't know anything about the _structure_ of a Data.fs file (it works by copying bytes -- doesn't know anything about transactions or objects), so it wouldn't be possible for repozo to be incompatible across ZODB releases even if the Data.fs format had changed (which it hasn't).