Pierre-Alain Joye has some new updates concerning his Zip package, one about version 1.7.0 reaching the beta stage and the other about the documentation available online for it.
From the first post:
Zip-1.7.0 has been released today. It has finally reached beta quality. A couple of important bugs have been catched. It also add a new mode for ZipArchive::open(), ZIPARCHIVE::OVERWRITE. It will always start a new archive and overwrite the existing file.
You can find the full list of changes in the Changelog for this release.
In post number two he talks more about the new documentation he's added to the main manual for the Zip package:
Writing documentations is not reallly my cup of tea, I'm too lazy (Sue me! But the php documentation team has managed to convince me to write and commit it. You can find the initial version online here.