==== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.4
- Linux/BSD distribution name and version: Ubuntu 14.04
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): MySQL
- Web server (Apache or Nginx): Nginx
- Manage mail accounts with iRedAdmin-Pro? No
- Related log if you're reporting an issue:  N/A
====

Since I am using MySQL, do I need to do the following "NEW" features as shown in the upgrade document for MySQL if i don't need that functionality?

MySQL/MariaDB backend special
  NEW: Support Postfix sender_dependent_relayhost_maps
     Summary
     Create SQL table vmail.sender_relayhost
     Create SQL lookup file: sender_dependent_relayhost_maps.cf
     Update Postfix settings in /etc/postfix/main.cf
  NEW: Able to enable/disable SOGo access for a single user

Thanks!