10
I'm not sure if it is a good idea to release it, as it will only create confusion about the version numbers, upgrades, feature compatibility, support, etc. On the other hand, it is a sought after module. Why don't you contact Catz and ask if you can release it as a wf-sections 1.2 version or something (I assume it's based on the 1.01 version, not his 2.0 version). That will benefit everyone, I think...
Herko