Just wanted to share a successful migration for a customer's ZCS with 150 users from RHEL 32bit to 7.0.1 64bit.

  1. from RHEL 5 32bit to 64bit, keeping the same ZCS version 6.11 based on Network Edition: Moving from 32-bit to 64-bit Server - Zimbra :: Wiki
  2. from ZCS 6.11 to 7.0 by the book, while doing this I noticed the tweet that 7.0.1 came to live
  3. from 7.0 to 7.0.1 by the book, after contacting the client for the clearance to upgrade

All went smoothly.

Have a nice day!