Doing better than Apache, but is that saying much?

A working group at OASIS has been working for a while on standardizing change tracking in a fine-grained way that is compatible with the OpenDocument Format and could work between different implementations. The brunt of this work is to come up with a full set of operations that can be applied to an ODF document. WebODF and OX documents have such sets but they are not yet complete and independent of the standardization effort. This independence is a result of available time that the respective developers have to move this forward. So currently progress is on the application level, not yet on the standards level.