Yesterday, we released Security Onion 3:
https://blog.securityonion.net/2026/03/security-onion-300-now-available-with.html
Today, we are announcing the 6-month EOL notice for Security Onion 2.4 as it will reach EOL on October 1, 2026.
If you are currently running Security Onion 2.4, you can upgrade using the instructions in the documentation:
https://securityonion.net/docs/appendix/
If you are a current Security Onion Solutions customer with Professional Services or Appliance coverage and need assistance with your upgrade, please reach out to Support and we’ll be happy to assist you!
