5.0 release timeframe

[Dan Stillman]

Just wanted to let everyone know that we're hoping to start rolling out
Zotero 5.0 by the first week in October, and possibly a week or two
sooner if things are going smoothly. We'll provide additional updates as
we get closer.

If your code won't work with both versions, I'd recommend rolling out a
4.0-compatible version now that checks the Zotero version number
(Zotero.version) and disables itself with a message pointing to the new
version if it sees Zotero 5.0 or later.

Let us know if you have any questions or run into any issues migrating
your code.