# Summary of Changes

### Upgrading PortSIP SBC

Please follow the [official upgrade guide](/portsip-communications-solution/portsip-pbx-administration-guide/9-configuring-portsip-sbc/upgrade-to-the-latest-sbc-release.md) to upgrade your PortSIP SBC to the latest version.

> **Important**\
> Always back up your system and schedule a maintenance window before performing an upgrade.

***

### Version 11.2.3

**Release Date:** Feb 10, 2026

**Changes**

* WebRTC application updates with the latest enhancements
* Fixed an issue where Call Flip could incorrectly route calls back to the originating WebRTC client
* Fixed an issue related to updating the nginx.conf configuration during SBC updates

***

### Version 11.2.1

**Release Date:** December 19, 2025

**Changes**

* Updated the WebRTC application

***

### Version 11.2.0

**Release Date:** November 20, 2025

**Changes**

* Fixed an issue where the WebRTC app failed to connect to the IM server when the IM service was deployed on a separate server

***

### Version 11.1.10

**Release Date:** November 6, 2025

**Changes**

* Released a new version of the WebRTC application

***

### Version 11.1.9

**Release Date:** July 28, 2025

**Changes**

* Fixed an issue with incorrect version information display

***

### Version 11.1.8

**Release Date:** July 22, 2025

**Changes**

* Added support for configuring codecs used for transcoding

***

### Version 11.1.1

**Release Date:** January 13, 2025

**Changes**

* Added new features to the WebRTC application
* Fixed multiple WebRTC application bugs

***

### Version 11.0.0

**Release Date:** December 12, 2024

**Changes**

* Introduced the all-new **PortSIP ONE WebRTC application**

***

### Version 10.1.2

**Release Date:** June 12, 2024

**Changes**

* Added support for IPv6 clients

***

### Version 10.1.0

**Release Date:** May 23, 2024

**Changes**

* Added transcoding support for audio calls

***

### Version 10.0.10

**Release Date:** March 11, 2024

**Changes**

* Updated the WebRTC client to support **UK English**
* Added support for controlling queue agent status
* Fixed minor bugs

***

### Version 10.0.9

**Release Date:** January 17, 2024

**Changes**

* Updated the WebRTC client to synchronize extension status with other apps and IP phones
* Performance improvements
* Fixed minor bugs

***

### Version 10.0.6

**Release Date:** November 2, 2023

**Changes**

* Added theme support
* Performance improvements

***

### Version 10.0.4

**Release Date:** August 3, 2023

**Changes**

* Fixed a security vulnerability
* Fixed an issue where sending DTMF from a WebRTC client caused incorrect RTP event timestamps, which could result in repeated DTMF detection by some SIP servers or trunks

***

### Version 10.0.3

**Release Date:** July 7, 2023

**Changes**

* Significant performance improvements:
  * Up to **2,000 concurrent WebRTC audio calls**
  * Up to **500 concurrent WebRTC video calls**
* Improved WebRTC screen-sharing performance with reduced latency

***

### Version 10.0.1

**Release Date:** March 30, 2023

**Changes**

* Changed the WebRTC client URL port to **10443**

  > Ensure TCP port **10443** is allowed in the firewall
* Fixed a crash issue when stopping or restarting the SBC while calls were active

***

### Version 10.0.0

**Release Date:** January 16, 2023

**Changes**

* Full rebrandability
* Microsoft Teams Direct Routing support
* WebRTC support
* Interoperability with leading UC, PBX, contact center platforms, and SIP trunk providers
* Advanced security features for protection against malicious attacks and fraud


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