General Information
On the 23rd of October the following was released:
- ISL Light 4.4.2526.66 for Windows (release_date=2025-10-23, build=afd99663fd27ab3e46d2968b2cf667c60ce818b6, platform=win32,os_version=0x06010000-0x7fffffff)
- ISL Light 4.4.2526.66 for Mac (release_date=2025-10-23, build=afd99663fd27ab3e46d2968b2cf667c60ce818b6, platform=mac, os_version=0x0a0e00-0x1bffff)
- ISL Light 4.4.2526.66 for Linux (release_date=2025-10-23, build=afd99663fd27ab3e46d2968b2cf667c60ce818b6, platform=linux64, os_version=0x030a000000021100-0xffffffffffffffff)
- ISL Light Client 4.4.2526.66 for Mac (release_date=2025-10-23, build=afd99663fd27ab3e46d2968b2cf667c60ce818b6, platform=mac, os_version=0x0a0e00-0x1bffff)
- ISL Light Client 4.4.2526.66 for Linux (release_date=2025-10-23, build=afd99663fd27ab3e46d2968b2cf667c60ce818b6, platform=linux64, os_version=0x030a000000021100-0xffffffffffffffff)
All updates have release date set to 2025-10-23. Your ESS will need to be same or higher to be able to update your server. This release is available to all countries except Japan.
Upgrading to new version
Hosted service users please check Upgrading Hosted Service.
Server license users please check Upgrading Server License.
Improvements
ISL Light - Desktop v4 - Update ISSC Encoder/Decoder Logs (FEATURE) [ISLLIGHT-7326] More
Description
Format of issc_decoder logs ( located in ISL Light log ) has been updated to include the id of the stream producing the log line.
ISL Light - Desktop v4 - Catch errors for Virtual background and disable it on error (FEATURE) [ISLLIGHT-7338] More
Description
Added a feature to catch errors for Virtual background while it's in use. If an error is caught Virtual background is disabled to prevent a crash of the application.
ISL Light - Desktop v4 - Fix crash when QML objects are manually deleted (FEATURE) [ISLLIGHT-7353] More
Description
ISL Light now detects possible crash in QML code when object is manually destroyed.
ISL Light - Desktop v4 - Use Virtual Background V2 (DEFECT) [ISLLIGHT-6868] More
Description
Users experienced an issue where ISL Light crashed sometimes when users enabled Virtual background because of GPU acceleration. Functionality was redesigned, a toggle button to enable or disabled GPU acceleration was added and the issue is no longer reproducible.
The defect was fixed.
ISL Light - Desktop v4 - Remove Invalid Characters from QML (DEFECT) [ISLLIGHT-7227] More
Description
Users could see some qml errors when checking log - invalid character detected. The invalid characters were replaced with the appropriate from the ASCII table and the errors should no longer appear in the log of ISL Light.
The defect was fixed.
ISL Light - Desktop v4 - Switch monitor handling to issc (DEFECT) [ISLLIGHT-7324] More
Description
Users could experience crash of ISL Light Client application on macOS or Linux when the user had multiple monitors and some of them were connected but not in use. When operator selected a specific monitor, ISL Light Client did not correctly enumerate the monitors and thus selected a region that did not exists thus leading to crash. Handling of monitor switching was ported to ISSC, which now prevents crashing of ISL Light Client application when operator is switching between monitors.
The defect was fixed.
ISL Light - Desktop v4 - Make GPU support optional (DEFECT) [ISLLIGHT-7334] More
Description
Users experienced an issue where ISL Light crashed sometimes when users enabled Virtual background because of GPU acceleration. Functionality was redesigned, a toggle button to enable or disabled GPU acceleration was added and the issue is no longer reproducible.
The defect was fixed.
ISL Light - Desktop v4 - Fix a crash in null context QML (DEFECT) [ISLLIGHT-7343] More
Description
In some cases ISL Light crashed which scrolling through the list of computers and having an active connection. Handling of qml destruction was redesigned, the application should not crash anymore.
The defect was fixed.
ISL Light - Desktop v4 - Fix MNN build to avoid crashes in virtual background (DEFECT) [ISLLIGHT-7347] More
Description
Users experienced crash of ISL Light application upon enabling Virtual background. The functionality was redesigned and the issue is no longer reproducible.
The defect was fixed.
ISL Light - Desktop v4 - Installation of ISL Light fails on macOS if it's first installation due to missing /etc/islonline folder (DEFECT) [ISLLIGHT-7351] More
Description
ISL Light application failed on macOS in case it was the first install of the application. The issue was that installer had a check which expected the folder /etc/islonline to exist, but it's created later in the installation process. The checker which checked if folder exists is now ignored and installation now works correctly.
The defect was fixed.