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Release Notes

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URL Reputation Verdict Name Changes

Announcement for URL Reputation Verdict Name Changes in Cisco Email Security Gateway 22/Nov/2019

File Reputation and File Analysis Updates

Announcement for Decommissioning Legacy File Reputation Servers for Cisco Email Security Gateway (PDF - 1 MB) 25/Sep/2020
Release Notes for File Reputation and File Analysis Updates for Cisco Email and Web Security Appliances (PDF - 190 KB) 25/Oct/2018

URL Category Updates

Release Notes for URL Category and Threat Category Updates for Cisco Web and Email Security Appliances (PDF - 1 MB) 28/Jan/2021

AsyncOS 15.0 for Cisco Secure Email Gateway

Release Notes for AsyncOS 15.0 for Cisco Secure Email Gateway - LD (Limited Deployment) (PDF - 281 KB) 04/May/2023New

AsyncOS 14.2 for Cisco Secure Email Gateway

Release Notes for AsyncOS 14.2.2 for Cisco Secure Email Gateway - MD (Maintenance Deployment) (PDF - 298 KB) 18/May/2023Updated
Release Notes for AsyncOS 14.2.1 for Cisco Secure Email Gateway - MD (Maintenance Deployment) (PDF - 290 KB) 23/Feb/2023
Release Notes for AsyncOS 14.2 for Cisco Secure Email Gateway - GD (General Deployment) (PDF - 271 KB) 23/Feb/2023

AsyncOS 14.0 for Cisco Secure Email Gateway

Release Notes for AsyncOS 14.0.1 Hot Patch3 for Cisco Secure Email Gateway (PDF - 101 KB) 15/Sep/2022
Release Notes for AsyncOS 14.0.3 for Cisco Secure Email Gateway - MD (Maintenance Deployment) (PDF - 406 KB) 01/Sep/2022
Release Notes for AsyncOS 14.0.2 Hot Patch1 for Cisco Secure Email Gateway (PDF - 1 MB) 27/Apr/2022
Release Notes for AsyncOS 14.0.2 for Cisco Secure Email Gateway - MD (Maintenance Deployment) (PDF - 1 MB) 18/Jan/2022
Release Notes for AsyncOS 14.0.1 Hot Patch1 for Cisco Secure Email Gateway (PDF - 1 MB) 16/Sep/2021
Release Notes for AsyncOS 14.0.1 for Cisco Secure Email Gateway - MD (Maintenance Deployment) (PDF - 1 MB) 28/Oct/2021
Release Notes for AsyncOS 14.0 for Cisco Secure Email Gateway - GD (General Deployment) (PDF - 317 KB) 15/Jul/2022

AsyncOS 13.7 for Cisco Email Security Appliances

Release Notes for AsyncOS 13.7 Hot Patch1 for Cisco Email Security Appliances (PDF - 1 MB) 06/Apr/2021
Release Notes for AsyncOS 13.7 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 1 MB) 27/Oct/2021

AsyncOS 13.5 for Cisco Email Security Appliances

Release Notes for AsyncOS 13.5.4 Hot Patch1 for Cisco Email Security Appliances (PDF - 1 MB) 13/Sep/2021
Release Notes for AsyncOS 13.5.4 for Cisco Email Security Appliances- MD (Maintenance Deployment) (PDF - 295 KB) 19/Jan/2023
Release Notes for AsyncOS 13.5.3 for Cisco Email Security Appliances- MD (Maintenance Deployment) (PDF - 1 MB) 23/Sep/2021
Release Notes for AsyncOS 13.5.2 Hot Patch2 for Cisco Email Security Appliances (PDF - 1 MB) 05/Nov/2020
Release Notes for AsyncOS 13.5.2 Hot Patch1 for Cisco Email Security Appliances (PDF - 1 MB) 20/Oct/2020
Release Notes for AsyncOS 13.5.2 for Cisco Email Security Appliances- MD (Maintenance Deployment) (PDF - 1 MB) 28/Oct/2021
Release Notes for AsyncOS 13.5.1 for Cisco Email Security Appliances- GD (General Deployment) (PDF - 1 MB) 22/Sep/2021
Release Notes for AsyncOS 13.5 for Cisco Email Security Appliances- LD (Limited Deployment) (PDF - 1 MB) 23/Sep/2021

AsyncOS 13.0 for Cisco Email Security Appliances

Release Notes for AsyncOS 13.0.5 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 462 KB) 21/Feb/2023
Release Notes for AsyncOS 13.0.4 for Cisco Email Security Appliances- MD (Maintenance Deployment) (PDF - 1 MB) 23/Sep/2021
Release Notes for AsyncOS 13.0.3 for Cisco Email Security Appliances- MD (Maintenance Deployment) (PDF - 2 MB) 23/Sep/2021
Release Notes for AsyncOS 13.0.2 for Cisco Email Security Appliances- MD (Maintenance Deployment) (PDF - 1 MB) 23/Sep/2021
Release Notes for AsyncOS 13.0.1 for Cisco Email Security Appliances- MD (Maintenance Deployment) (PDF - 1 MB) 23/Sep/2021
Release Notes for AsyncOS 13.0 Hot Patch 1 for Cisco Email Security Appliances (PDF - 1 MB) 27/Apr/2020
Release Notes for AsyncOS 13.0 for Cisco Email Security Appliances- GD (General Deployment) (PDF - 1 MB) 08/Dec/2021

AsyncOS 12.5 for Cisco Email Security Appliances

Release Notes for AsyncOS 12.5.3 Hot Patch1 for Cisco Email Security Appliances (PDF - 1 MB) 27/Apr/2021
Release Notes for AsyncOS 12.5.3 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 282 KB) 19/May/2023Updated
Release Notes for AsyncOS 12.5.2 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 15/Sep/2021
Release Notes for AsyncOS 12.5.1 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 17/Feb/2022
Release Notes for AsyncOS 12.5 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 1 MB) 15/Sep/2021

AsyncOS 12.1 for Cisco Email Security Appliances

Release Notes for AsyncOS 12.1 Hot Patch 1 for Cisco Email Security Appliances (PDF - 131 KB) 13/Aug/2019
Release Notes for AsyncOS 12.1 for Cisco Email Security Appliances- GD (General Deployment) (PDF - 1 MB) 22/Sep/2021

AsyncOS 12.0 for Cisco Email Security Appliances

Release Notes for AsyncOS 12.0 for Cisco Email Security Appliances- GD (General Deployment) (PDF - 1 MB) 22/Sep/2021

AsyncOS 11.5 for Cisco Email Security Appliances

Release Notes for AsyncOS 11.5 for Cisco Email Security Appliances (PDF - 173 KB) 07/Jun/2019

AsyncOS 11.1 for Cisco Email Security Appliances

Release Notes for AsyncOS 11.1.3 Hot Patch 1 for Cisco Email Security Appliances (PDF - 196 KB) 10/Jun/2019
Release Notes for AsyncOS 11.1.3 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 15/Sep/2021
Release Notes for AsyncOS 11.1.2 Hot Patch 5 for Cisco Email Security Appliances (PDF - 182 KB) 28/Mar/2019
Release Notes for AsyncOS 11.1.2 Hot Patch 4 for Cisco Email Security Appliances (PDF - 183 KB) 05/Feb/2019
Release Notes for AsyncOS 11.1.2 Hot Patch 3 for Cisco Email Security Appliances (PDF - 191 KB) 21/Jan/2019
Release Notes for AsyncOS 11.1.2 Hot Patch 1 for Cisco Email Security Appliances (PDF - 188 KB) 07/Dec/2018
Release Notes for AsyncOS 11.1.2 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 15/Sep/2021
Release Notes for AsyncOS 11.1.1 Hot Patch 1 for Cisco Email Security Appliances (PDF - 1 MB) 05/May/2020
Release Notes for AsyncOS 11.1.1 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 15/Sep/2021
Release Notes for AsyncOS 11.1 Hot Patch 7 for Cisco Email Security Appliances (PDF - 182 KB) 10/Jan/2019
Release Notes for AsyncOS 11.1 Hot Patch 6 for Cisco Email Security Appliances (PDF - 183 KB) 08/Nov/2018
Release Notes for AsyncOS 11.1 Hot Patch 4 for Cisco Email Security Appliances (PDF - 126 KB) 18/Jun/2018
Release Notes for AsyncOS 11.1 Hot Patch 3 for Cisco Email Security Appliances (PDF - 129 KB) 29/May/2018
Release Notes for AsyncOS 11.1 Hot Patch 2 for Cisco Email Security Appliances (PDF - 129 KB) 21/May/2018
Release Notes for AsyncOS 11.1 Hot Patch 1 for Cisco Email Security Appliances (PDF - 128 KB) 14/Mar/2018
Release Notes for AsyncOS 11.1 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 1 MB) 15/Sep/2021

AsyncOS 11.0 for Cisco Email Security Appliances

Release Notes for AsyncOS 11.0.4 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 17/Sep/2021
Release Notes for AsyncOS 11.0.3 Hot Patch 1 for Cisco Email Security Appliances (PDF - 182 KB) 19/Apr/2019
Release Notes for AsyncOS 11.0.3 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 17/Sep/2021
Release Notes for AsyncOS 11.0.2 Hot Patch 1 for Cisco Email Security Appliances (PDF - 125 KB) 28/Jun/2018
Release Notes for AsyncOS 11.0.2 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 17/Sep/2021
Release Notes for AsyncOS 11.0.1 Hot Patch 4 for Cisco Email Security Appliances (PDF - 138 KB) 03/Apr/2018
Release Notes for AsyncOS 11.0.1 Hot Patch 3 for Cisco Email Security Appliances (PDF - 131 KB) 16/Jan/2018
Release Notes for AsyncOS 11.0.1 Hot Patch 2 for Cisco Email Security Appliances (PDF - 130 KB) 10/Jan/2018
Release Notes for AsyncOS 11.0.1 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 17/Sep/2021
Release Notes for AsyncOS 11.0 Hot Patch 2 for Cisco Email Security Appliances (PDF - 128 KB) 27/Sep/2017
Release Notes for AsyncOS 11.0 Hot Patch 1 for Cisco Email Security Appliances (PDF - 127 KB) 11/Sep/2017
Release Notes for AsyncOS 11.0 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 1 MB) 17/Sep/2021

AsyncOS 10.0 for Cisco Email Security Appliances

Release Notes for AsyncOS 10.0.3 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 17/Sep/2021
Release Notes for AsyncOS 10.0.2 Hot Patch 1 for Cisco Email Security Appliances (PDF - 131 KB) 30/May/2017
Release Notes for AsyncOS 10.0.2 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 17/Sep/2021
Release Notes for AsyncOS 10.0.1 Hot Patch 3 for Cisco Email Security Appliances (PDF - 127 KB) 09/Aug/2017
Release Notes for AsyncOS 10.0.1 Hot Patch 2 for Cisco Email Security Appliances (PDF - 125 KB) 16/Mar/2017
Release Notes for AsyncOS 10.0.1 Hot Patch 1 for Cisco Email Security Appliances (PDF - 126 KB) 09/Mar/2017
Release Notes for AsyncOS 10.0.1 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 17/Sep/2021
Release Notes for AsyncOS 10.0 Hot Patch 1 for Cisco Email Security Appliances (PDF - 127 KB) 01/Mar/2017
Release Notes for AsyncOS 10.0 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 1 MB) 17/Sep/2021

AsyncOS 9.8 for Cisco Email Security Appliances

Release Notes for AsyncOS 9.8.1 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 1 MB) 17/Sep/2021
Release Notes for AsyncOS 9.8 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 1 MB) 17/Sep/2021

AsyncOS 9.7 for Cisco Email Security Appliances

Release Notes for AsyncOS 9.7.2 Hot Patch 3 for Cisco Email Security Appliances (PDF - 128 KB) 23/Mar/2017
Release Notes for AsyncOS 9.7.2 Hot Patch 2 for Cisco Email Security Appliances (PDF - 126 KB) 20/Feb/2017
Release Notes for AsyncOS 9.7.2 Hot Patch 1 for Cisco Email Security Appliances (PDF - 125 KB) 03/Oct/2016
Release Notes for AsyncOS 9.7.2 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 229 KB) 22/Sep/2016
Release Notes for AsyncOS 9.7.1 Hot Patch 2 for Cisco Email Security Appliances (PDF - 125 KB) 29/Apr/2016
Release Notes for AsyncOS 9.7.1 Hot Patch 1 for Cisco Email Security Appliances (PDF - 125 KB) 26/Mar/2016
Release Notes for AsyncOS 9.7.1 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 209 KB) 15/Feb/2016
Release Notes for AsyncOS 9.7 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 180 KB) 26/Oct/2015

AsyncOS 9.6 for Cisco Email Security Appliances

Release Notes for AsyncOS 9.6.0 Hot Patch 2 for Cisco Email Security Appliances (PDF - 126 KB) 07/Dec/2015
Release Notes for AsyncOS 9.6 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 234 KB) 04/Sep/2015

Cisco AsyncOS 9.5 for Email Security Appliances

Cisco AsyncOS 9.5 for Email Release Notes - LD (Limited Deployment) (PDF - 196 KB) 01/Jul/2015

Cisco AsyncOS 9.0 for Email Security Appliances

Release Notes for AsyncOS 9.1.2 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 189 KB) 11/Oct/2017
Release Notes for AsyncOS 9.1.1 Build 28 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 122 KB) 19/Feb/2016
Release Notes for AsyncOS 9.1.1 Hot Patch 4 for Cisco Email Security Appliances (PDF - 109 KB) 26/May/2017
Release Notes for AsyncOS 9.1.1 Hot Patch 3 for Cisco Email Security Appliances (PDF - 108 KB) 21/Feb/2017
Release Notes for AsyncOS 9.1.1 Hot Patch 2 for Cisco Email Security Appliances (PDF - 111 KB) 25/Aug/2016
Release Notes for AsyncOS 9.1.1 Hot Patch 1 for Cisco Email Security Appliances (PDF - 110 KB) 21/Sep/2015
Release Notes for AsyncOS 9.1.1 for Cisco Email Security Appliances - GD (General Deployment) (PDF - 179 KB) 18/Aug/2015
Release Notes for AsyncOS 9.1 Build 42 for Cisco Email Security Appliances - MD (Maintenance Deployment) (PDF - 128 KB) 30/Jan/2016
Release Notes for AsyncOS 9.1 Build 40 for Cisco Email Security Appliances (FIPS/CC Compliant Release) - MD (Maintenance Deployment) (PDF - 125 KB) 13/Aug/2015
Release Notes for AsyncOS 9.1 Hot Patch 1 for Cisco Email Security Appliances (PDF - 110 KB) 29/Jun/2015
Cisco AsyncOS 9.1 for Email Release Notes - GD (General Deployment) (PDF - 186 KB) 30/Mar/2015
Cisco AsyncOS 9.0 for Email Release Notes - ED (Early Deployment) (PDF - 226 KB) 21/Dec/2015

Cisco AsyncOS 8.5 for Email Security Appliances

Release Notes for AsyncOS 8.5.7 Hot Patch 3 for Cisco Email Security Appliances (PDF - 134 KB) 02/Feb/2017
Cisco AsyncOS 8.5.7 for Email Release Notes - MD (Maintenance Deployment) (PDF - 182 KB) 04/Jul/2017
Release Notes for AsyncOS 8.5.6 Hot Patch 6 for Cisco Email Security Appliances (PDF - 126 KB) 07/Dec/2015
Cisco AsyncOS 8.5.6 for Email Hot Patch 5 Release Notes (PDF - 126 KB) 11/Mar/2015
Cisco AsyncOS 8.5.6 for Email Hot Patch 4 Release Notes (PDF - 118 KB) 29/Jan/2015
Cisco AsyncOS 8.5.6 for Email Hot Patch 3 Release Notes (PDF - 132 KB) 03/Dec/2014
Cisco AsyncOS 8.5.6 for Email Hot Patch 2 Release Notes (PDF - 111 KB) 06/Oct/2014
Cisco AsyncOS 8.5.6 for Email Hot Patch 1 Release Notes (PDF - 112 KB) 08/Sep/2014
Cisco AsyncOS 8.5.6 for Email Release Notes (PDF - 262 KB) 08/Jul/2014
Cisco AsyncOS 8.5.5 for Email Release Notes (PDF - 225 KB) 02/Jun/2014
Cisco AsyncOS 8.5 for Email Release Notes (PDF - 214 KB) 27/May/2014

Cisco AsyncOS 8.0 for Email Security Appliances

Cisco AsyncOS 8.0.2 for Email Hot Patch 1 Release Notes (PDF - 112 KB) 06/Jan/2015
Cisco AsyncOS 8.0.2 for Email Release Notes - MD (Maintenance Deployment) (PDF - 219 KB) 11/Sep/2014
Cisco AsyncOS 8.0.1 for Email Hot Patch 5 Release Notes - FCS (Limited Availability) (PDF - 111 KB) 12/Feb/2015
Cisco AsyncOS 8.0.1 for Email Hot Patch 4 Release Notes - FCS (Limited Availability) (PDF - 112 KB) 12/Jun/2014
Cisco AsyncOS 8.0.1 for Email Hot Patch 3 Release Notes - FCS (Limited Availability) (PDF - 113 KB) 02/Jun/2014
Cisco AsyncOS 8.0.1 for Email Hot Patch 2 Release Notes - FCS (Limited Availability) (PDF - 114 KB) 02/Jun/2014
Cisco AsyncOS 8.0.1 for Email Hot Patch 1 Release Notes (PDF - 130 KB) 02/Jun/2014
Release Notes for AsyncOS 8.0.1 for Cisco Email Security Appliances (PDF - 210 KB) 25/Aug/2015
Cisco AsyncOS 8.0 for Email Hot Patch 1 Release Notes (PDF - 55 KB) 03/Sep/2013
Release Notes for AsyncOS 8.0 for Cisco Email Security Appliances (PDF - 198 KB) 27/Jun/2013

Cisco AsyncOS 7.8 for Email Security Appliances

Cisco AsyncOS 7.8 for Email Release Notes - FCS (Limited Availability) (PDF - 98 KB) 29/Oct/2013

Cisco IronPort AsyncOS 7.6 for Email Security Appliances

Cisco AsyncOS 7.6.3 for Email Hot Patch 2 Release Notes (PDF - 114 KB) 18/Jul/2014
Cisco AsyncOS 7.6.3 for Email Hot Patch 1 Release Notes (PDF - 64 KB) 22/Apr/2014
Cisco IronPort AsyncOS 7.6.3 for Email Release Notes (PDF - 218 KB) 27/Jun/2013
Cisco IronPort AsyncOS 7.6.2 for Email Hot Patch 2 Release Notes (PDF - 122 KB) 03/Apr/2013
Cisco IronPort AsyncOS 7.6.2 for Email Hot Patch 1 Release Notes (PDF - 131 KB) 28/Feb/2013
Cisco IronPort AsyncOS 7.6.2 for Email Release Notes (PDF - 279 KB) 19/Nov/2012
Cisco IronPort AsyncOS 7.6.1 for Email Hot Patch 2 Release Notes (PDF - 132 KB) 13/Jun/2012
Cisco IronPort AsyncOS 7.6.1 for Email Release Notes (PDF - 255 KB) 17/Apr/2012
Cisco IronPort AsyncOS 7.6.1 Hot Patch 1 for Email Release Notes (PDF - 134 KB) 29/May/2012
Cisco IronPort AsyncOS 7.6.1-101 for Email Release Notes (PDF - 259 KB) 18/Jan/2013

Cisco IronPort AsyncOS 7.5 for Email Security Appliances

Cisco IronPort AsyncOS 7.5.2 for Email Hot Patch 4 Release Notes (PDF - 66 KB) 27/Jun/2013
Cisco IronPort AsyoncOS 7.5.2 Hot Patch 2 for Email Release Notes (PDF - 139 KB) 24/Sep/2012
Cisco IronPort AsyncOS 7.5.2 Hot Patch 1 for Email Release Notes (PDF - 124 KB) 09/Jul/2012
Cisco IronPort AsyncOS 7.5.2-101 for Email Release Notes (PDF - 375 KB) 18/Jan/2013
Cisco IronPort AsyncOS 7.5.2 for Email Release Notes (PDF - 373 KB) 19/Mar/2012
Cisco IronPort AsyncOS 7.5.1 Hot Patch 3 for Email Release Notes (PDF - 128 KB) 03/Feb/2012
Cisco IronPort AsyncOS 7.5.1 for Email Release Notes (PDF - 356 KB) 14/Nov/2011
Cisco IronPort AsyncOS 7.5 for Email Release Notes (PDF - 340 KB) 30/Jun/2011

Cisco IronPort AsyncOS 7.3 for Email Security Appliance

Cisco IronPort AsyncOS 7.3.2 for Email Hot Patch 2 Release Notes (PDF - 122 KB) 03/Apr/2013
Cisco IronPort AsyncOS 7.3.2 for Email Hot Patch Release Notes - FCS (Limited Availability) (PDF - 132 KB) 03/Jul/2012
Cisco IronPort AsyncOS 7.3.2 for Email Release Notes - FCS (Limited Availability) (PDF - 412 KB) 26/Mar/2012
Cisco IronPort AsyncOS 7.3.1 for Email Hot Patch 2 Release Notes (PDF - 126 KB) 08/Feb/2012
Cisco IronPort AsyncOS 7.3.1 (Build 101) for Email Security Release Notes (PDF - 326 KB) 18/Jul/2011
Cisco IronPort AsyncOS 7.3.1 (Build 047) for Email Release Notes (PDF - 322 KB) 06/Jun/2012
Cisco IronPort AsyncOS 7.3 for Email Security Release Notes (PDF - 255 KB) 09/Feb/2011

Cisco IronPort AsyncOS 7.1 for Email Security Appliance

Cisco IronPort AsyncOS 7.1.5 for Email Hot Patch 6 Release Notes (PDF - 69 KB) 27/Jun/2013
Cisco IronPort AsyncOS 7.1.5 for Email Hot Patch 5 Release Notes (PDF - 122 KB) 03/Apr/2013
Cisco IronPort AsyncOS 7.1.5 for Email Hot Patch 4 Release Notes (PDF - 126 KB) 08/Feb/2012
Cisco IronPort AsyncOS 7.1.5 for Email Hot Patch Release Notes (PDF - 442 KB) 03/Oct/2011
Cisco IronPort AsyncOS 7.1.5-102 for Email Release Notes (PDF - 442 KB) 18/Jan/2013
Cisco IronPort AsyncOS 7.1.5 for Email Release Notes (PDF - 441 KB) 05/May/2011
Cisco IronPort AsyncOS 7.1.4 for Email Release Notes (PDF - 374 KB) 19/Oct/2011
Cisco IronPort AsyncOS 7.1.3 for Email Release Notes (PDF - 393 KB) 07/Dec/2010
Cisco IronPort AsyncOS 7.1.2 for Email Release Notes (PDF - 343 KB) 19/Aug/2010
Cisco IronPort AsyncOS 7.1.1 for Email Release Notes (PDF - 279 KB) 04/Jun/2010

Cisco Email Security Plug-in (for Microsoft Outlook)

Cisco Email Security Plug-In Release Notes 24/Jul/2014

End of Life Releases

Cisco Content Security Product Discontinuance Policy

Miscellaneous

Release Notes for the RAID Diagnostic Tool for 80-Series Cisco Email Security, Web Security, and Content Security Management Appliances (PDF - 119 KB) 30/May/2016
Installing a Memory Upgrade for the Cisco S370, C370, C670, or X1070 Content Security Appliances (PDF - 495 KB) 11/Sep/2015
BIOS Firmware Update for C160, M160 and S160 Cisco Content Security Appliances
Cisco IronPort Hard Drive Firmware Upgrade for C160, S160, and M160 Appliances Release Notes (GA) (PDF - 130 KB) 02/Sep/2010

High-Priority Issues

Release Notes for the June 25, 2015 SSH Vulnerability Patch for Cisco Content Security Virtual Appliances (PDF - 151 KB) 25/Jun/2015

Open Source Software Licensing Information

Open Source Used in AsyncOS 15.0 for Cisco Secure Email Gateway (PDF - 11 MB) 04/May/2023Updated
Open Source Used in AsyncOS 14.2 for Cisco Secure Email Gateway (PDF - 8 MB) 26/May/2022
Open Source Used in AsyncOS 14.0 for Cisco Secure Email Gateway (PDF - 7 MB) 22/Mar/2021
Open Source Used in AsyncOS 13.5 for Cisco Email Security Appliances (PDF - 4 MB) 02/Jun/2020
Open Source Used in AsyncOS 13.0 for Cisco Email Security Appliances (PDF - 2 MB) 24/Sep/2019
Open Source Used in AsyncOS 12.0 for Cisco Email Security Appliances (PDF - 1 MB) 26/Nov/2018
Open Source Used in AsyncOS 11.5 for Cisco Email Security Appliances (PDF - 1 MB) 07/Jun/2019
Open Source Used in AsyncOS 11.1 for Cisco Email Security Appliances (PDF - 1 MB) 09/May/2018
Open Source Used in AsyncOS 11.0 for Cisco Email Security Appliances (PDF - 1 MB) 14/Jun/2017
Open Source Used in AsyncOS 10.0 for Cisco Email Security Appliances (PDF - 1 MB) 20/Jun/2016
Open Source Used in AsyncOS 9.8 for Cisco Email Security Appliances (PDF - 1 MB) 27/Mar/2017
Open Source Used In AsyncOS 9.7 for Cisco Email Security Appliances (PDF - 1 MB) 20/Oct/2015
Open Source Used In AsyncOS 9.5 for Email (PDF - 1 MB) 26/May/2015
Open Source Used In AsyncOS 9.1 for Email (PDF - 1 MB) 04/Mar/2015
Open Source Used In AsyncOS 9.0 for Email (PDF - 1 MB) 29/Jan/2015
Open Source Used In AsyncOS 8.5.5 for Email (PDF - 1 MB) 07/Mar/2014
Open Source Used In AsyncOS 8.5 for Email (PDF - 1 MB) 14/Feb/2014
Open Source Used In AsyncOS 8.0.2 for Email (PDF - 1 MB) 09/May/2014
Open Source Used In AsyncOS 8.0 for Email (PDF - 1 MB) 23/Jul/2013
Open Source Used In AsyncOS 7.8 for Email (PDF - 1 MB) 23/Jul/2013

Virtual Appliances

Release Notes for Configuration Migration Tool 1.0 for Cisco Content Security Virtual Appliances

Cisco Domain Protection and Advanced Phishing Protection

Release Notes for Cisco Advanced Phishing Protection (PDF - 125 KB) 10/Jul/2020

- Release Notes for Cisco Domain Protection (PDF - 125 KB)

Support Documentation

All Support Documentation for this Series