Release Notes
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- Release Notes for the Catalyst 4500 Series Switch, Cisco IOS Release 15.2(2)Ex 31/May/2019
- Release Notes for the Catalyst 4500 Series Switch, Cisco IOS Release 15.2(1)Ex 07/Jul/2014
- Release Notes for the Catalyst 4500 Series Switch, Release IOS-XE 3.2.x SG 03/Nov/2016
- Release Notes for Catayst 4500 Series Switch, Cisco IOS XE 3.1.x SG 10/Sep/2010
- Release Notes for the Catalyst 4500 Series Switch, Cisco IOS 15.1(2)SGx 04/Dec/2017
- Release Notes for the Catalyst 4500 Series Switch, Cisco IOS 15.1(1)SG 30/Jun/2014
- Release Notes for the Catalyst 4500 Series Switch, Release 15.0(2)SG 03/Nov/2016
- Release Notes for the Catalyst 4500 Series Switch, Cisco IOS Release 12.2(54)SGx and 12.2(53)SGx 18/Aug/2014
- Release Notes for the Catalyst 4500 Series Switch, Cisco IOS, 12.2(46)SG1 16/Sep/2008
- Release Notes for the Catalyst 4500 Series Switch, Cisco IOS Releases 12.2(37)SG to 12.2(25)SG 08/Feb/2011
- Release Notes for the Catalyst 4500 Series Switch, Cisco IOS Releases 12.2(21)SG to 12.1(8a)EW 08/Feb/2011
- Release Notes for the Catalyst 4500 Series Switch, Cisco IOS, 12.1E 04/May/2007
- Release Notes for the Catalyst 4500 Series Switch, Cisco IOS, 12.1EW 04/May/2007
- Release Notes for the Cisco Catalyst 4500E Series Switch, Cisco IOS XE 3.11.xE 29/Mar/2024
- Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE 3.10.xE 15/Jul/2019
- Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE 3.9.xE 23/Nov/2017
- Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE 3.8.xE 07/Apr/2020
- Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE 3.7xE 27/Nov/2016
- Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE 3.6.xE 31/May/2019
- Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE 3.5.xE 03/Jul/2014
- Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE 3.3.xSG 30/Jun/2014
- Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE 3.4.xSG 03/Dec/2017
- Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE 3.3.xXO 02/Aug/2016
- Release Notes for the Catalyst 4500E Series Switch, Cisco IOS XE 3.2.0XO 27/Sep/2011
- ROMMON Release Notes for WS-X45-SUP8-E, WS-X45-SUP8L-E, and WS-X45-SUP9-E 03/Nov/2019
- ROMMON Release Notes for the WS-X45-SUP7-E, WS-X45-SUP7L-E, and WS-C4500X Family of Switches 14/Mar/2019
- ROMMON Release Notes for WS-X45-SUP6-E, WS-X45-SUP6-LE, WS-C4900M, WS-C4948E, and WS-C4948E-F 18/Nov/2010
- ROMMON R Notes for WS-X4013+10GE and WS-X4516-10GE 13/May/2009
Cisco IOS Release Notes for the Catalyst 4500 Series Switch
Cisco IOS Release Notes for the Catalyst 4500-E Series Switches
ROMMON Release Notes
Support Documentation
Release and Compatibility