The link for Debian 13 is wrong, https://docs.iredmail.org/upgrade.debian.11-12.html
It should be this one : https://docs.iredmail.org/upgrade.debian.12-13.html

fixed. Thanks for the feedback.

iRedMail-1.8.0 has been released.

• Download from our website: https://www.iredmail.org/download.html

• Upgrade your existing iRedMail server: https://docs.iredmail.org/iredmail.releases.html

Here's major changes since iRedMail-1.7.4:

Supports new distribution releases

• Debian 13 (trixie). Tutorial for upgrading from Debian 12 to 13.

• Ubuntu 26.04 LTS (tested with nightly build)

• OpenBSD 7.8.

Dropped distribution release

• Ubuntu 22.04

• OpenBSD 7.7

Improvements

• Install binary packages on FreeBSD, saves a lot of time compared to installing packages from ports tree.

Updated packages

• Roundcube 1.6.15 (security fixes)

• netdata 2.10.1

• iRedAPD 6.1. supports secure (ssl) sql connection.

• mlmmjadmin 3.6.2, supports secure (ssl) sql connection.

• iRedAdmin 2.8

• uwsgi 2.0.31 (OpenBSD only)