Field Notice: FN74375 - Cisco Jabber Clients (Windows and Mac) End Users Cannot Join Cisco Webex Meetings after July 31, 2026 - Software Upgrade Recommended

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Updated:March 18, 2026
Document ID:FN74375

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Critical
Impact Rating:
Critical
First Published:
2026-Mar-18
Last Published:
2026-Mar-18
Revision:
1.0
Cisco Bug IDs:

Notice

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE OR WARRANTY, INCLUDING THE WARRANTY OF MERCHANTABILITY. YOUR USE OF THE INFORMATION ON THE FIELD NOTICE OR MATERIALS LINKED FROM THE FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.

Products Affected


Affected Software Product Affected Release Affected Release Number Comments
Jabber Software 14 14.0(0), 14.0(1), 14.0(2), 14.0(3), 14.0(4), 14.0(5), 14.1(0), 14.1(1), 14.1(2), 14.1(3), 14.1(4), 14.1(5), 14.2(0), 14.2(1), 14.3(0), 14.3(1) Affected release numbers include Jabber for Windows
Jabber Software 15 15.0(0), 15.0(1), 15.0(2), 15.1(0), 15.1(1), 15.1(2), 15.2(0) Affected release numbers include Jabber for Windows and Jabber for Mac

Defect Information


Defect IDHeadline
CSCwt00878Upgrade Cisco Jabber Client for Webex meetings; the legacy meeting server API is deprecated - Software Upgrade Recommended.
CSCwt00865Upgrade Cisco Jabber Client for Webex meetings; the legacy meeting server API is deprecated - Software Upgrade Recommended.

Problem Description


Cisco Jabber (Windows and Mac) end users will not be able to join Cisco Webex Meetings after July 31, 2026, due to the deprecation of the legacy meeting server API. 


Background


Cisco is deprecating its legacy meeting server API on July 31, 2026. To maintain compatibility with Cisco Webex meeting services, Cisco Jabber clients must be running a release that supports the new API architecture. This change affects both Windows and Mac platforms. 


Problem Symptom


Cisco Jabber (Windows and Mac) end users will not be able to join Webex Meetings after July 31, 2026.


Workaround/Solution


Customers must upgrade all Cisco Jabber clients on Windows or Mac platforms to one of the releases listed in the following table, or a later release, before July 31, 2026. 

Affected Cisco Jabber Product First Fixed Release
Jabber for Windows 14.0.6.60571 (Build 310571)
14.1.6.60578 (Build 310578)
14.2.2.60583 (Build 310583)
14.3.2.60569 (Build 310569)
15.0.3.60590 (Build 310590)
15.1.3.60597 (Build 310597)
15.2.1.60627 (Build 310627)
Jabber for Mac 15.0.3 (Build 310614)
15.1.3 (Build 310616)
15.2.1 (Build 310617)

 


Revision History


VersionDescriptionSectionDate
1.0Initial Release—2026-MAR-18

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