OPNsense images
===============

Welcome!  This document describes images types and frequency of image
releases.  It is kept up to date.  You are reading the latest one.

Our release schedule
====================

We release images only when they are absolutely needed and otherwise stick
to our reliable firmware update process through either the GUI (System:
Settings: Firmware) or the root console (Option 12).

This does not always work, so there may be revoked images and images built
on stable updates, e.g. 26.1.6 as opposed to only 26.1.

The latest stable release image for OPNsense is 26.7 (July 15, 2026).

The next scheduled release image for OPNsense is 27.1 (January, 2027).

It is advised to update to the latest version immediately after installation.

Available image types
=====================

o dvd: ISO installer UEFI hybrid image with live system capabilities
  running in VGA mode.
o vga: USB installer UEFI hybrid image with live system capabilities
  running in VGA mode.
o serial: USB installer UEFI hybrid image with live system capabilities
  running in serial console (115200) mode.
o nano: A preinstalled serial image for USB sticks, SD/CF cards, SSD
  with secondary VGA console enabled.  These images are 3G in size and
  automatically adapt to the installed media size after first boot.

Checksum verification
=====================

Checksum files next to the images may not prove authenticity of images
on any particular mirror.  The checksums can also be found in the forum
annoucements, GitHub or blog posts.  Please double-check.

https://github.com/opnsense/changelog/tree/master/community
https://forum.opnsense.org/index.php?board=11.0
https://opnsense.org/blog/

Signature verification
======================

All images also have OpenSSL SHA-256 signatures, which can be verified
against the distributed public key.  For instructions please visit:

https://docs.opnsense.org/manual/install.html

The public key for version 26.7 is:

-----BEGIN PUBLIC KEY-----
MIICIjANBgkqhkiG9w0BAQEFAAOCAg8AMIICCgKCAgEAziSNKuzrL2cwLx5LXmLn
cWS5Lk+i9CzRMXO/4xQYBQCaSnd8GBg/HA/g4aPoTUa6ovAI0AHfW8KQJQyBkFzn
pi6MLZJ9tEaFcn0CiV+tSTJd1RV4bB8jtpKl5oTkgFrPsyaB7iBlG5Cd49VCW19h
DxClQ24lkWkVoYfsfCQEt4ADNGLygWCPyf4bxGD/t6/tiW9SsOs2+gfOZ9C/G2d/
EBhJFoBEoz5lvULVxTdfY5PScYrHD/waZnk3rGc2A+9pI/SM2JAwKqsgZ6MSFbXO
DNocSjqFUUkdqhty+Qcc0OJ+hMbKKVE+f3QJBQIwT3ayys8QK0m5CCo91/f+DjoN
noj+t5YN9x8GREkF0wrdIi7hevkwrL2/SJQbq1bL1BLB+mMSXYR611lgT8YfYjyZ
7tmpNVC3O5Pj7l20snm1lVUSqS0PsFBvh6HQtBRwQDGppaIIhH1Nt9yIatmSiGZt
2YrMVNBzbQrJzSX+vWcAulkaPIt4t+XxmpO5IDNZ+4uMZ7XyJq1lAhIeyXx+Falf
v7S+ZpJWFVNz0/N5z6lBbADD855i+gFY6B5209xGyhd6FwaPOjISgQKkgBwF1AiW
MDuTuP9lkh/U5gGBZIFTnbdEMgOAL4P+Hsw9Nozav+3QIpiU3Pv9F29a1erCkq09
rpQyNglY7Jqme/RipzbYia8CAwEAAQ==
-----END PUBLIC KEY-----

More help needed?
=================

Find our source code and issue trackers: https://github.com/opnsense

Browse the docs: https://docs.opnsense.org/

Visit the forum: https://forum.opnsense.org/

Discuss on Reddit: https://www.reddit.com/r/OPNsense

Or drop us a message: https://bsky.app/profile/opnsense.org


Stay safe,
Your OPNsense team