General Information
On 2nd of June the following was released :
- ISL Light Desk 4.4.2447.49 for Windows (release_date=2025-05-27, build=3545669939dbb72b411e3bb12db99a07004005c9, platform=win32,os_version=0x6010000-0x7fffffff)
- ISL Light Client 4.4.2447.49 for Windows (release_date=2025-05-27 , build=3545669939dbb72b411e3bb12db99a07004005c9, platform=win32,os_version=0x6010000-0x7fffffff)
- Desktop Control plugin 4.4.2447.49 for Windows (release_date=2025-05-27, build=3545669939dbb72b411e3bb12db99a07004005c9, platform=win32)
All updates with version 4.4.2447.49 have release date set to 2025-05-27. 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 - Upgrade to libdatachannel-0.22.6 and libjuice-1.5.9 (SPECIAL) [ISLLIGHT-7129] More
Description
The libdatachannel and libjuice library were updated to latest version (libdatachannel-0.22.2 and libjuice-1.5.7).
ISL Light - Desktop v3 - Update Mbedtls to 2.28.10 (SECURITY) [ISLLIGHT-7123] More
Description
Internal mbedTLS library was updated to version 2.28.10.
ISL Light - Desktop v3 - Add download button to unattended access dialog (FEATURE) [ISLLIGHT-6541] More
Description
When setting up unattended access during a session, the window contained a link which would download the required ISL AlwaysOn application. We have improved the user experience by adding a download button which does the same procedure.
ISL Light - Desktop v3 - Add support for changing remote screen resolution when connect to clients (FEATURE) [ISLLIGHT-6579] More
Description
When clients join using ISL Light Client on Windows the supporters can now also change remote resolution, which allows operators to optimize the screen resolution of the remote Windows computer to match operators monitor(s) resolution. Once the session is completed, the resolution will revert to original state.
ISL Light - Desktop v3 - Add delay between failed reconnects (FEATURE) [ISLLIGHT-6620] More
Description
A delay was added when reconnecting and there was network error and connection was not fully established. Before there was no delay. The reconnect delay will be from 1s up to 30s, depending on number of retries. A call to stop was also added in case the connection fails.
ISL Light - Desktop v3 - Replace watchdog in ISL Light Client v3 with hefa watchdog implementation (FEATURE) [ISLLIGHT-7064] More
Description
Old implementation of watchdog was replaced with a new implementation of watchdog. Additionally option to crash the ISL Light Client application and test the watchdog crash reporting was added. The crash options can be found in application settings.
ISL Light - Desktop v3 - AutoTransport add SNI to permissive SSL mode (FEATURE) [ISLLIGHT-7109] More
Description
AutoTransport methods wsstun-direct, wsstun-proxy, https-direct, https-proxy were fixed to use SNI (send connection hostname in SSL handshake) in order to improve compatibility with third party load balancers like Cloudflare.
ISL Light - Desktop v3 - Add ecdh_ctx log key to mbedTLS log line (FEATURE) [ISLLIGHT-7149] More
Description
The log line of ISL Light now includes ecdh_ctx log key which shows which algorithm was used to establish the shared secret.
ISL Light - Desktop v3 - Add support for unicode clipboard (DEFECT) [ISLLIGHT-6997] More
Description
Users experienced an issue where copy and paste of unicode characters was not working correctly. The functionality was redesigned and the issue is no longer reproducible.
The defect was fixed.
ISL Light - Desktop v3 - Change resolution move out of main thread (DEFECT) [ISLLIGHT-7025] More
Description
Users sometimes experienced an issue where ISL Light Client would crash occasionally because remote resolution querying was being done on the main thread. The functionality was redesigned and the issue is no longer reproducible.
The defect was fixed.
ISL Light - Desktop v3 - Reduce stack consumption when elevating to admin mode (DEFECT) [ISLLIGHT-7044] More
Description
Users experienced an issue where ISL Light Client would crash occasionally when elevating to administrative mode. The functionality was redesigned and the issue is no longer reproducible.
The defect was fixed.
ISL Light - Desktop v3 - Fix obtaining resolution (DEFECT) [ISLLIGHT-7045] More
Description
Users experienced an issue where incorrect values were shown as original resolution for the remote computer when remote computer had scaling enabled. The functionality was redesigned and the issue is no longer reproducible.
The defect was fixed.
ISL Light - Desktop v3 - Remove sending of language load time metric to ISL Conference Proxy (DEFECT) [ISLLIGHT-7052] More
Description
Language load time metric was being sent to ISL Conference Proxy. Sending of language load metric was redesigned and is now no longer sent to the ISL Conference Proxy.
The defect was fixed.
ISL Light - Desktop v3 - Allow enum type to include many values and fix crash during metrics report (DEFECT) [ISLLIGHT-7055] More
Description
The range of enum values was expanded when loading metrics from shared section. This resolves an issue with user action metrics, where ZRLE metrics from issc_stream ( external process) were not seen in the main application. Additionally a crash was fixed when dumping single UMA metric that has all buckets non-zero.
The defect was fixed.
ISL Light - Desktop v3 - Translate ALTGr + C, H, I keys (DEFECT) [ISLLIGHT-7078] More
Description
Users experienced an issue where certain key combinations were not translated correctly in the session when different keyboard layouts were used on operator and client side. The functionality was redesigned and the issue is no longer reproducible.
The defect was fixed.
ISL Light - Desktop v3 - Detect when running Windows Sandbox environment (DEFECT) [ISLLIGHT-7085] More
Description
Users experienced an issue where they were unable to enable Administrative Mode and Restart & Resume in session where they were connected to a machine with Windows Sandbox environment. The functionality was redesigned and the issue is no longer reproducible.
The defect was fixed.
ISL Light - Desktop v3 - Cache 'calculate_string_size' (DEFECT) [ISLLIGHT-7091] More
Description
Users sometimes experienced a crash of ISL Light Client application caused by calculate_string_size. The functionality was redesigned and the issue is no longer reproducible.
The defect was fixed.
ISL Light - Desktop v3 - Always enable TLS when opening AT MUX channel (DEFECT) [ISLLIGHT-7114] More
Description
In previous version some mux connection channels were not protected by TLS session. TLS session is now enabled on all mux channels.
The defect was fixed.
ISL Light - Desktop v3 - Post only public histograms to server (DEFECT) [ISLLIGHT-7163] More
Description
In previous versions histograms that did not start with ASCII character were sent to the server. The functionality was redesigned and now only histograms that start with ASCII character are sent to the server.
The defect was fixed.