Version number reported in status says v57a even after upgrades

I have a longstanding install that has worked reliably.

But I notice that the and status page says

A new version of Mail-in-a-Box is available. You are running version v57a. The latest version is v63. For upgrade instructions, see

Even though I’ve upgraded recently, and done many upgrades since install. There are never any errors or messages during upgrades that make me think it failed.

Is this message wrong? How to I check my version of mailinabox from the command line? IOW, how do I double check the version?

Thank you very much for a great mail system.


Here’s a transcript of what I’m seeing on back to back upgrade attempts:

root@box:~# curl -s | sudo -E bash

Primary Hostname: <redacted>
Public IP Address: <redacted>
Public IPv6 Address: <redacted>
Mail-in-a-Box Version:  v57a

Updating system packages...
Installing system packages...
Initializing system random number generator...
Opening alternate SSH port <redacted>
Firewall is active and enabled on system startup
Installing nsd (DNS server)...
Installing Postfix (SMTP server)...
Installing Dovecot (IMAP server)...
Installing OpenDKIM/OpenDMARC...
Installing SpamAssassin...
Installing Nginx (web server)...
Installing Roundcube (webmail)...
Installing Nextcloud (contacts/calendar)...
Nextcloud is already latest version
Installing Z-Push (Exchange/ActiveSync server)...
Installing Mail-in-a-Box system management daemon...
Installing Munin (system monitoring)...


Your Mail-in-a-Box is running.

Please log in to the control panel for further instructions at:


If you have a DNS problem put the box's IP address in the URL
(https://<redacted>/admin) but then check the TLS fingerprint:

After that, I reboot then attempt the upgrade again, and see:

Primary Hostname: <redacted>
Public IP Address: <redacted> 
Public IPv6 Address: <redacted> 
Mail-in-a-Box Version:  v57a

If you run the install/upgrade script on v57a you will end up with 57a. This is the last release of MIAB on Ubuntu 18.04

The upgrade to 63 requires a different procedure. You first need to install Ubuntu 22.04. See the release notes for the 6x versions of MIAB. Essentially a backup and restore onto a fresh Ubuntu 22.04 install.

I feel embarrased for not catching this earlier. Thank you!

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