Lifecycle record
CISCO-IOS-SOFTWARE-RELEASE-15-3-3-M EOL & EOSL Dates
Cisco IOS Software Release 15.3(3)M
Lifecycle status
In EOSL Phase
CISCO-IOS-SOFTWARE-RELEASE-15-3-3-M reached its last date of support on 2020-10-31. Cisco support services are no longer available for this model. Recommended replacement: CISCO-IOS-SOFTWARE-RELEASE-15-4-3-M.
Last checked: 2026-06-16
EOL & EOSL Dates and Details
| End-of-Life Announcement (EOL) | 2015-04-07 |
|---|---|
| End of Sale (EOS) | 2015-10-06 |
| End of Service Life (EOSL) | 2020-10-31 |
| Manufacturer | Cisco |
| Category | Software |
| Product Series | Cisco IOS Software |
| Part Number | CISCO-IOS-SOFTWARE-RELEASE-15-3-3-M |
| Model Number | Cisco IOS Software Release 15.3(3)M |
| Release Date | 2013-05-17 |
| Replacement Part Number | CISCO-IOS-SOFTWARE-RELEASE-15-4-3-M |
| Replacement Product Name | Cisco IOS Software Release 15.4(3)M |
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 | 2015-10-06 |
|---|---|
| End Of SW Maintenance Releases Date: HW | 2016-10-05 |
| End Of Vulnerability/Security Support: HW | 2017-10-05 |
| Official EOL Notice | View Official EOL Documentation |
More Cisco IOS Software EOL Dates
| Part Number | Product Name | EOL Announcement | End of Sale |
|---|---|---|---|
| CISCO-IOS-SOFTWARE-RELEASE-15-6-3-M | Cisco IOS Software release 15.6(3)M | 2019-04-30 | 2019-10-29 |
| IOS-RELEASE-15-2-7-E | Cisco IOS Release 15.2(7)E for Industrial IoT Switches | 2021-09-30 | 2022-03-31 |