General Information
On 18th of March the following was released :
- ISL Light Desk 5.0.2551.64 for Windows (release_date=2026-03-13, build=14ac6eb03ea26ae43e730725b1f464eb2e11b277, platform=win32,os_version=0x6010000-0x7fffffff)
- ISL Light Client 5.0.2551.64 for Windows (release_date=2026-03-13 , build=14ac6eb03ea26ae43e730725b1f464eb2e11b277, platform=win32,os_version=0x6010000-0x7fffffff)
- Video plugin 5.0.2551.64 for Windows (release_date=2026-03-13, build=14ac6eb03ea26ae43e730725b1f464eb2e11b277, platform=win32)
All updates with version 5.0.2551.64 have release date set to 2026-03-13. 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 v3 - Video plugin raise rver and send stop_player (FEATURE) [ISLLIGHT-6950] More
Description
Raised the plugin version.
ISL Light - Desktop v3 - Enable e2e certs when creating session (FEATURE) [ISLLIGHT-7150] More
Description
ISL Light Desk and ISL Light Client now use new schema for securing end 2 end connection. Both endpoints generate public/private keypair and send the public pair has to remote side via ISL Conference Proxy as pre-start message. The certificate used to establish end 2 end connection is then checked by both ends.
ISL Light - Desktop v3 - Prepare security dialog (FEATURE) [ISLLIGHT-7176] More
Description
A new security dialog was introduced into ISL Light Desk and ISL Light Client application. It can be found by right-clicking the Settings icon in ISL Light Client - Session Security. The dialog hold information about the Session security along with additional information about the connection such as whether certificates were supplied on both side, whether certificates were validated, which cipher suite was used and the fingerprint of both operator and client certificate.
ISL Light - Desktop v3 - Catch errors for Virtual background and disable it on error (FEATURE) [ISLLIGHT-7337] 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 v3 - Update security dialog to show Medium (FEATURE) [ISLLIGHT-7450] More
Description
Updated security dialog to show Medium when connected with older version of ISL Light.
ISL Light - Desktop v3 - Implement self-signed ECKEY and add callbacks on tls stages (FEATURE) [ISLLIGHT-7480] More
Description
We have expanded internal hefa library with:
- added function to generate EC private key
- added optional tls handshake callbacks
- improved logs - mbedtls exceptions now included source context
ISL Light - Desktop v3 - Fix PAC parser for multiple returned HTTP proxy addresses (DEFECT) [ISLLIGHT-6894] More
Description
In previous versions if users had multiple proxies defined in the PAC file in some cases the incorrect proxy was selected. PAC file parser was redesigned and now the correct proxy is used.
The defect was fixed.
ISL Light - Desktop v3 - Turn off AVX512 option for MNN (DEFECT) [ISLLIGHT-7339] More
Description
Users sometimes experienced an issue when enabling virtual background on macOS devices. The functionality was redesigned and the issue is no longer reproducible.
The defect was fixed.
ISL Light - Desktop v3 - Make chat clear non destructive (DEFECT) [ISLLIGHT-7438] More
Description
Users experienced an issue where chat reports from ISL Conference Proxy were problematic if either operator or client cleared the chat. Functionality was redesigned, when clearing chat it will only clear it in the GUI , but send the full chat to ISL Conference Proxy and also display whole chat if either operator or clients select the option to view chat in chat editor.
The defect was fixed.