Release Notes
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- Cisco IOS XE 3.18S
- Release Notes for Cisco ASR 920 Series Aggregation Services Router, Cisco IOS XE 3.18SP
- Release Notes for Cisco NCS 4206 and Cisco NCS 4216 Series, Cisco IOS XE 3.18SP
- Release Notes for Cisco NCS 4201 and Cisco NCS 4202 Series, Cisco IOS XE 3.18SP
- Release Notes for Cisco cBR Series Converged Broadband Routers for Cisco IOS-XE Release 3.18S
- Release Notes for the Cisco ASR 900 Series Routers XE 3S
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- Cisco IOS XE 3S Release Notes 14/Feb/2013
- Release Notes for Cisco IOS Release 15S 07/Oct/2014
- Cisco ASR 1000 Series Aggregation Services Routers Release Notes 27/Sep/2017
- Release Notes for the Cisco ASR 900 Series Routers 05/Apr/2017
- Cisco CSR 1000V Series Cloud Services Router Release Notes 13/Feb/2018
- Release Notes for the Cisco 4000 Series ISRs 29/Mar/2016
- Cisco ASR 920 Series Aggregation Services Router Release Notes 10/Jul/2020
- Cross-Platform Release Notes for Cisco IOS XE Release 3S 27/Mar/2015
- Release Notes for Cisco cBR Series Converged Broadband Routers for Cisco IOS-XE Release 3S 26/Mar/2015
Support Documentation
Release and Compatibility