Lifecycle record
CISCO-IOS-XR-SOFTWARE-RELEASE-5-1 EOL & EOSL Dates
Cisco IOS XR Software Release 5.1
Lifecycle status
In EOSL Phase
CISCO-IOS-XR-SOFTWARE-RELEASE-5-1 reached its last date of support on 2020-10-31. Cisco support services are no longer available for this model. Recommended replacement: CISCO-IOS-XR-SOFTWARE-RELEASE-5-2.
Last checked: 2026-06-16
EOL & EOSL Dates and Details
| End-of-Life Announcement (EOL) | 2014-10-01 |
|---|---|
| End of Sale (EOS) | 2015-10-01 |
| End of Service Life (EOSL) | 2020-10-31 |
| Manufacturer | Cisco |
| Category | Software |
| Product Series | Cisco IOS XR Software |
| Part Number | CISCO-IOS-XR-SOFTWARE-RELEASE-5-1 |
| Model Number | Cisco IOS XR Software Release 5.1 |
| Release Date | 2014-02-24 |
| Replacement Part Number | CISCO-IOS-XR-SOFTWARE-RELEASE-5-2 |
| Replacement Product Name | Cisco IOS XR Software Release 5.2 |
Lifecycle Timeline
Recorded lifecycle milestones in date order.
Additional Information
Support milestones and the official source recorded for this model.
| Last Ship Date: HW, License | 2015-10-01 |
|---|---|
| End Of SW Maintenance Releases Date: HW | 2016-04-01 |
| End Of SW Maintenance Releases Date (EMR Rebuild): OS SW | 2017-04-01 |
| End Of Vulnerability/Security Support: HW | 2018-04-01 |
| Official EOL Notice | View Official EOL Documentation |
More Cisco IOS XR Software EOL Dates
| Part Number | Product Name | EOL Announcement | End of Sale |
|---|---|---|---|
| CISCO-IOS-XR-SOFTWARE-RELEASE-5-0 | Cisco IOS XR Software Release 5.0 | 2014-09-15 | 2015-09-15 |
| CISCO-IOS-XR-SOFTWARE-RELEASE-5-2 | Cisco IOS XR Software Release 5.2 | 2016-07-31 | 2017-01-29 |
| CISCO-IOS-XR-SOFTWARE-RELEASE-6-0 | Cisco IOS XR Software Release 6.0 | 2017-03-17 | 2017-12-11 |
| CISCO-IOS-XR-SOFTWARE-RELEASE-6-2 | Cisco IOS XR Software Release 6.2 | 2018-03-23 | 2019-03-21 |
| CISCO-IOS-XR-SOFTWARE-RELEASE-6-3 | Cisco IOS XR Software Release 6.3 | 2018-09-18 | 2019-03-19 |
| CISCO-IOS-XR-SOFTWARE-RELEASE-6-6 | Cisco IOS XR Software Release 6.6 | 2019-06-23 | 2020-06-22 |
| CISCO-IOS-XR-SOFTWARE-RELEASE-7-1 | Cisco IOS XR Software Release 7.1 | 2021-01-29 | 2021-07-30 |
| CISCO-IOS-XR-SOFTWARE-RELEASE-7-5 | Cisco IOS XR Software Release 7.5 | 2022-12-21 | 2023-11-30 |