==== REQUIRED BASIC INFO OF YOUR IREDMAIL SERVER ====
- iRedMail version (check /etc/iredmail-release): 0.99
- Deployed with iRedMail Easy or the downloadable installer?  downloadable installer
- Linux/BSD distribution name and version:   Debian 9
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):   MySql 5.7
- Web server (Apache or Nginx):  Nginx
- Manage mail accounts with iRedAdmin-Pro?  Yes
- [IMPORTANT] Related original log or error message is required if you're experiencing an issue.
====

Upgrade guide states upgrading by release.

If that is true, where is the 1.0 release downloadable installer file?

If that is NOT true, then the documentation is incorrect?

Please advise.

TIA!