This document describes how to choose a stable Cisco IOS® XE release for enterprise routing platforms.
This document covers recommended releases for Catalyst 8000 Edge, ASR1000, ISR4000 and ISR1000 Platforms.
The software versions provided in this document are generally considered stable for the majority of deployments. Before you select a release, review the associated Release Note document and verify there are no open caveats that can impact the device based on its configured features. The Release Notes also contain tables that identify when Rommon, Field-Programmable Gate Array (FPGA), or Complex Programmable Logic Device (CPLD) versions must be upgraded before you perform the Cisco IOS XE upgrade.
Whenever possible, it is advised to install an Extended-Support release of Cisco IOS XE software. Where hardware support or support for a particular feature is not yet available in an Extended-Support release, a Standard-Support release is required. When the next Extended-Support release becomes available, it is advised to move from the Standard-Support to an Extended-Support version that provides the same hardware and software support.
Each Cisco IOS XE software release is classified as either an Standard-Support release or an Extended-Support release.
Standard-Support Release - A sustaining support lifetime of 12 months from First Customer Shipment (FCS) with scheduled rebuilds. Examples are Cisco IOS XE Software releases 17.7, 17.8, 17.10 and 17.11.
Extended-Support Release - A sustaining support lifetime of 36 months from FCS with scheduled rebuilds. Examples are Cisco IOS XE Software releases 17.9, and 17.12.
| Product Family |
Recommended Versions |
Known Caveats/ Notes |
Release Notes |
| Catalyst 8500 |
17.12.7b or 17.15.5 |
Depending on feature requirements. |
|
| Catalyst 8500L |
17.12.7b or 17.15.5 |
Depending on feature requirements. |
|
| Catalyst 8300 |
17.12.7b or 17.15.5 |
Depending on feature requirements. |
|
| Catalyst 8200 |
17.12.7b or 17.15.5 |
Depending on feature requirements. |
|
| Catalyst 8200L |
17.12.7b or 17.15.5 |
Depending on feature requirements. |
|
| Catalyst 8000v |
17.12.7b or 17.15.5 |
Depending on feature requirements. |
|
| ASR1000 |
17.15.5 (RP3), 17.9.8 (RP2) |
|
|
| ISR4461 |
17.12.6 or 17.15.4c |
Depending on feature requirements. |
Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE 17.15.x |
| ISR4200/4300/4431/4451 |
17.9.8 or 17.12.7b |
Depending on feature requirements. |
Release Notes for Cisco 4000 Series ISRs, Cisco IOS XE Dublin 17.12.x |
| ISR1100 |
17.12.7b or 17.15.5 |
On Cisco 1000 Series routers (C11xx models) running Cisco IOS XE version 17.4 or older there is a mandatory interim upgrade required to any Cisco IOS XE version between 17.5 and 17.10 before upgrading to Cisco IOS XE release 17.11 or newer. |
Release Notes for Cisco 1000 Series Integrated Services Routers, Cisco IOS XE |
Starting with Cisco IOS XE Dublin 17.11.1a, the PAK-managing library is discontinued. If you have a PAK license without a snapshot, and you want to upgrade to Cisco IOS XE Dublin 17.12.1a or a later release, you have to upgrade twice. First upgrade to the latest 17.6.x or 17.9.x release, where the system can take a snapshot of the PAK license and complete DLC, and then upgrade to the required target release. Please review FN-74148 and Snapshots for PAK Licenses for additional details.
| Revision | Publish Date | Comments |
|---|---|---|
9.0 |
15-Jun-2026
|
Updated Tech Content and Recertification. |
8.0 |
24-Jul-2025
|
Added important considerations for PAK snapshots requirements in newer software versions. |
7.0 |
02-Apr-2025
|
Updated to include the current recommended builds in the Software Reasearch and Software Download center. |
5.0 |
13-Nov-2023
|
Included fixed releases for the latest PSIRT issue (17.6.6a, 17.9.4a, 17.3.8a) and minor formatting changes. |
4.0 |
27-Jun-2023
|
Updated Title, Introduction, Background Information, Branding Requirements, Style Requirements, and Formatting. |
3.0 |
13-Jun-2022
|
Versions for each product were aligned with the software center’s current “gold star” releases. |
2.0 |
05-Nov-2021
|
Updated a URL. |
1.0 |
04-Jun-2020
|
Initial Release |