Cisco IOS XE 16.11.x — End-of-Life & Support Dates
Is Cisco IOS XE 16.11.x end of life?
Past end of supportYes. Cisco's last date of support for Cisco IOS XE 16.11.x was Jan 31, 2025 — the train is fully past support, per the Cisco end-of-life bulletin linked on this page.
Security cutoff: vulnerability fixes ended Jul 10, 2020 — for security posture, that date matters more than the final support date.
Lifecycle milestones — exact dates as published
| Milestone | Date | |
|---|---|---|
| End-of-Life announcement | Oct 10, 2019 | passed |
| End of Sale | Jan 10, 2020 | passed |
| End of SW Maintenance Releases | Jul 10, 2020 | passed |
| End of Vulnerability/Security Support | Jul 10, 2020 | passed |
| Last Date of Support | Jan 31, 2025 | passed |
Source: Cisco end-of-life bulletin ↗ · last verified Jul 2026 by EOSL.ai.
Hardware this affects
Families the bulletin ties to this train. If a device below is capped at 16.11.x, its software stopped receiving security fixes Jul 10, 2020 — even if the hardware itself is still under support.
Cisco IOS XE 16.11.x — questions
Is Cisco IOS XE 16.11.x end of life?
Yes. Cisco's last date of support for Cisco IOS XE 16.11.x was Jan 31, 2025 — the train is fully past support, per the Cisco end-of-life bulletin linked on this page.
When did security fixes end for Cisco IOS XE 16.11.x?
Jul 10, 2020 — Cisco's "End of Vulnerability/Security Support" milestone. After this date the train receives no fixes for newly discovered vulnerabilities, even severe ones.
What is the last date of support for Cisco IOS XE 16.11.x?
Jan 31, 2025, per the Cisco bulletin. After it, no support of any kind is available from Cisco for this train.
What hardware does the Cisco IOS XE 16.11.x end-of-life affect?
The Cisco bulletin and its placement on Cisco's notice listings tie this train to: Cisco Catalyst 3850 Series. The train may run on more platforms than listed — check your release against the bulletin.