| JunOS Version | Release Type | Filename Example | Key Features/Fixes | | :--- | :--- | :--- | :--- | | | Service Release (Recommended) | jinstall-ex-2200-12.3R12-S15-domestic-signed.tgz | Last stable security & bug fixes. Best for most. | | 15.1R7-S13 | Extended Release | jinstall-ex-2200-15.1R7-S13-domestic-signed.tgz | Newer features, but reportedly less stable on EX2200. Proceed with caution. | | 12.3R12-S19 | Final Cumulative Patch | jinstall-ex-2200-12.3R12-S19-domestic-signed.tgz | Most recent (but rare). Only needed if you have specific issues. |
: Log in to the Juniper Support Downloads page. juniper ex2200 firmware download