Zimbra 9 Open Source is not updated

@sharif some more input on why not Carbonio.

1. Carbonio Community Edition (FOSS for small organizations with basic needs)
   1.  I and many others consider ActiveSync / native mobile a basic need. Most of us don't only use a desktop nowadays. 🙂
2. Carbonio (Zextras Suite integrated + other proprietary components)
   1. I've tried to reached out to a few companies and even sent a request to buy a small number of licenses, but no one ever gets back to me.

So even if I wanted to, I can't find something to replace Zimbra OSS + Zextras Suite....

@arman, any further updates on the upgrade issues listed here?