The ownCloud Zimlet currently is designed for Zimbra 8.6, at this time it is not being developed or tested for Zimbra 8.7.

The newer WebDAV Client is in development and is designed for Zimbra 8.7. A beta version is available for install.

The following features will be added to the next release, and is scheduled to be release before September 20th 2016:

1. Optionally set a password when sharing via link (ownCloud / Nextcloud only)
2. Option NOT to store the DAV path on the server.
3. Fix 8.7 regression around selecting various types. (conversations and messages) See Github issue.
4. Attach mails from DAV, using serverside Java, don't send attachment via the client.
5. Simplified installer.

The following features are requested by people, but are as of yet unplanned:

1. Preview documents, images, etc.
2. Add the possibility of choise webdav/owncloud folder when you save an attachment or email to WebDAV (on every upload).
3. Possibility of share folders with other Zimbra accounts.4.
4. Upload files with drag&drop.
5. Version control on files (like briefcase).
6. Support of multiple languages using .properties files. We can support spanish and catalan translations.