Release notes for Zoom Phone Local Survivability module
Zoom provides up-to-date release notes for the Zoom Node Zoom Phone Local Survivability (ZPLS) module. This article contains information about recent changes, including new and enhanced features, updates to existing features, and bug fixes. Additionally, you can find information about the minimum supported version for Zoom Node services in the minimum enforced version documentation. For release notes for the Zoom Node agent and OS image, please see the release notes for Zoom Node.
Table of Contents
- Upcoming Release
- Released
- April 19, 2026
- March 23, 2026
- Febraury 9, 2026
- November 17, 2025
- October 20, 2025
- September 15, 2025
- July 14, 2025
- May 18, 2025
- November 17, 2024
- September 15, 2024
- August 19, 2024
- July 21, 2024
- June 28, 2024
- May 20, 2024
- April 14, 2024
- March 17, 2024
- February 25, 2024
- December 17, 2023
- November 18, 2023
- October 13, 2023
- September 16, 2023
- August 12, 2023
- July 15, 2023
- June 30, 2023
- June 18, 2023
- March 11, 2023
- December 17, 2022
- November 11, 2022
- October 9, 2022
- September 9, 2022
Upcoming Release
Details about upcoming releases will be posted as they become available.
Released
April 19, 2026
Version: 5.3.0.20260321.231
New, enhanced, and changed features
| Type | Feature title | Description | Platforms |
|---|
| Admin features |
|---|
| New or enhanced feature | Zoom Phone Local Survivability with high availability and node grouping | Account owners and admins can create groups of Zoom Phone Local Survivability (ZPLS) nodes with options for redundancy through active/backup server pairs. The system supports up to 20 nodes per group, with a maximum capacity of 50,000 users, and up to 100 nodes per account. When configuring groups, admins can select hardware capacity options of either 2,000 or 5,000 extensions per node. The interface provides improved visibility into server assignments, usage statistics, and configuration status. Server updates are automatically staggered within node groups to maintain service availability. When redundancy is enabled, the system notifies admins that the total number of supported extensions will be reduced by 50%. | Web portal |
March 23, 2026
Version: 5.3.0.20260321.231
New, enhanced, and changed features
| Type | Feature title | Description | Platforms |
|---|
| Changed feature | Enhancements to server-side conferencing support | While in Local Survivability mode, users can initiate and manage ad hoc conferences from Zoom desktop or desk phone clients. Conference capabilities include adding or removing participants, placing participants on hold or resuming them, muting or unmuting, and sending DTMF during an active conference. A no-hold conference option is also supported, and the conference ends automatically when the host leaves. For desk phones that do not support server-side conferencing, the system interoperates with device-side conferencing to maintain continuity. | Desk phones |
Resolved issues
| Description | Platforms |
|---|
| Minor bug fixes | |
Febraury 9, 2026
Version: 5.2.0.20260206.213
Resolved issues
| Description | Platforms |
|---|
| Minor bug fixes | |
November 17, 2025
Version: 4.11.0.20251121.174
Resolved issues
| Description | Platforms |
|---|
| Minor bug fixes | |
October 20, 2025
Version: 4.10.0.20251016.161
Resolved issues
| Description | Platforms |
|---|
| Minor bug fixes | |
September 15, 2025
Version: 4.9.0.20250919.155
Resolved issues
| Description | Platforms |
|---|
| Minor bug fixes | |
July 14, 2025
Version: 4.7.0.20250703.145
Resolved issues
| Description | Platforms |
|---|
| Minor bug fixes | |
May 18, 2025
Version: 4.5.1.20250429.133
Resolved issues
| Description | Platforms |
|---|
| Minor bug fixes | |
| Resolved an issue where a SIP-based device could not be promoted from backstage during a webinar. | |
November 17, 2024
Version: 3.11.0.20241120
Resolved issues
- Security enhancements
- Minor bug fixes
September 15, 2024
Version: 3.9.0.20240823
Resolved issues
- Security enhancements
- Minor bug fixes
August 19, 2024
Version: 3.8.0
Resolved issues
- Minor bug fixes
- Security enhancements
July 21, 2024
Version: 3.7.0.20240712
Resolved issues
- Minor bug fixes
- Security enhancements
June 28, 2024
Version: 3.6.0.256
Resolved issues
- Minor bug fixes
- Security enhancements
May 20, 2024
Version: 3.5.0.279
Resolved issues
April 14, 2024
Version: 3.4.0.247
Resolved issues
- Minor bug fixes
- Security enhancements
- Resolved an issue where Common Area phones with Local Survivability Mode enabled received a 403 error when attempting to register.
March 17, 2024
Version: 3.3.0.267
Resolved issues
- Minor bug fixes
- Security enhancements
February 25, 2024
Version: 3.2.0.229
Resolved issues
- Minor bug fixes
- Security enhancements
December 17, 2023
Version: 2.12.0.215
Resolved issues
- Minor bug fixes
- Security enhancements
November 18, 2023
Resolved issues
- Minor bug fixes
- Security enhancements
October 13, 2023
Version: 2.9.1.187
Resolved issues
- Minor bug fixes
- Security enhancements
September 16, 2023
Version: 2.9.0.174
Changes to existing features
- Support for multiple ELIN with Local Survivability
Admins can now configure multiple ELIN numbers to a Survivability instance. This allows ELIN numbers associated with different locations to be assigned to a single ZPLS-enabled site. Admins can also define an outbound caller ID with a BYOC number that will be used by users when making an outbound call in Survivability mode. This outbound caller ID will also be used by extension only users who will be allowed to make calls during Survivability mode. Contact Zoom Support to enable ZPLS ELIN Pool and ZPLS Outbound Caller ID for your account.
Resolved issues
- Minor bug fixes
- Security enhancements
August 12, 2023
Resolved issues
- Minor bug fixes
- Security enhancements
- Resolved an issue with external transfers failing after service failover.
July 15, 2023
Version: 2.7.0
Changes to existing features
- Support for multiple network interfaces
Node servers utilizing multiple Network Interface Cards (NIC), can now assign multiple IP addresses to a Local Survivability module. When using multiple addresses, addresses can be assigned to either Zoom Desktop clients (soft client) or Deskphones, Zoom Rooms, and Zoom Phone Appliances (phyisical phones). - Support for listening across multiple IP addresses
Admins can now assign multiple IP addresses when using multiple Network Interface Cards (NIC).
Resolved issues
- Minor bug fixes
- Resolved an issue with call audio with Poly phones.
- Resolved an issue where a native Zoom Phone number could not be forwarded to a trunk utilizing the Local Survivability module.
June 30, 2023
Version: 2.6.0
Resolved issues
June 18, 2023
New and enhanced features
- Zoom Phone Local Survivability
The minimum supported version for Zoom clients to support local survivability is now 5.15.0 to address a security issue. Admins need to ensure their users' clients are up to date for full functionality.
March 11, 2023
Version: 2.3.0
Changes to existing features
- Troubleshooting testing tool
The ZPLS module now has a tool for testing the health of the ZPLS server including, running test calls to verify functionality. This tool is useful when troubleshooting issues with the ZPLS module.
Resolved issues
- Minor bug fixes
- Security enhancements
December 17, 2022
Version: 1.12.0
New and enhanced features
- Routing rules for the ZPLS module
Administrators can now enable the option to have the ZPLS module utilize routing rules based on the routing rule configuration at the account and site level. - Support for receiving calls via extensions in Local Survivability mode
When Local Survivability is enabled, users can now receive calls dialed via extensions (not using the E164 format). - Enable ZPLS at the user group level
Administrators can now enable ZPLS at the Zoom Phone user group level, instead of the account or site level. If not enabled at the group level, users will still have access if enabled at the site level.
Resolved issues
- Minor bug fixes
- Security enhancements
November 11, 2022
Version: 1.11.0
New and enhanced features
- Support for dedicated IP and peering port for SBC use
When configuring an SBC, admins can now specify the peer IP address and port utilized for communication with ZPLS modules.
Changes to existing features
- Changes to call forwarding
During failover, if Call Forwarding is enabled for a Zoom Phone number, call forwarding will be simultaneous instead of sequential. Additionally, there are UI changes for how call forwarding is handled during failover.
Note: This feature is dependent on the upcoming Zoom Phone release, which will be released on November 20, 2022.
Resolved issues
- Minor bug fixes
- Resolved an issue with the monitoring service repeatedly starting and stopping.
October 9, 2022
Version: 1.10.0
Resolved issues
September 9, 2022
Version: 1.9.0
Resolved issues
- Security enhancements
- Minor bug fixes