Junos OS 23.4
23.4
Os Release
· Junos OS Series
Is Junos OS 23.4 still maintained?
Yes. Juniper actively maintains Junos OS 23.4. See Juniper's lifecycle bulletin.
When do security fixes for Junos OS 23.4 stop?
Engineering fixes for Junos OS 23.4 — including security patches — stop on 2028-12-26. After that date, a device on this release cannot be patched against newly disclosed vulnerabilities without upgrading, which is the point that matters for KEV exposure and compliance.
What should I upgrade Junos OS 23.4 to?
Upgrade to a currently maintained Juniper release. Check the release-train table on the vendor page for the nearest supported version.
Junos OS 23.4 Release Lifecycle
Junos OS 23.4 is a Juniper Junos OS software release. Releases are maintained on a fixed schedule: Juniper ships fixes and security patches until the release reaches end of engineering, after which a device must be upgraded to a maintained release to stay patchable. The dates below are milestones for the software train, not for any specific appliance — hardware running this release has its own separate lifecycle. Vendor support will continue until .
Lifecycle Milestones
| Lifecycle notice published | 2y 7mo ago | |
|---|---|---|
| End of software maintenance | in 2y 5mo | |
| End of security vulnerability support | in 2y 5mo | |
| Last date of support | in 2y 11mo |