License Server Help

Release notes

You can download the latest version of the License Server from the JetBrains website:

Linux or macOS


ZIP archive

MSI Installer

Build #39687

Released on: December 6, 2023

FLS now supports the option in JetBrains Account to enable or disable the AI Assistant plugin.

If enabled for your organization, the AI Assistant plugin will be available to use in all IDEs activated with a license from your FLS. Disabling the AI Assistant in your JetBrains Account will make it unavailable.

If you continue to use a previous version of FLS that does not support this option, the AI Assistant will be disabled in your organization regardless of your JetBrains Account settings.

Build #38945

Released on: October 16, 2023

Fixed the following license allocation issues:

  • Although there were product-specific licenses available, the server allocated more expensive pack licenses, such as the All Products Pack.

  • The server allocated an additional license to an IDE, even though it was already covered by a license previously allocated to the Code With Me plugin.

Build #33965

Released on: October 25, 2022

  • Updated a org.apache.commons:commons-text to version 1.10.0 with security fix for CVE-2022-42889.

  • Fixed behaviour when License Server resets its license state once a day

Build #32800

Released on: July 19, 2022


  • Checking License Server version via /check-version endpoint fails with UnrecognizedPropertyException exception

  • License Server sometimes looses it's registration state after server restart

  • Excel reports can store more than 65k rows

Build #31550

Released on: April 6, 2022

Spring Framework libraries were updated to version with security fix for CVE-2022-22965.


  • Bug when explicit logout from License Server leads to the page with 400 error

  • Problem with "View" action on similar licenses that leads to wrong licenses set

  • In some cases server becomes unregistered just after restart/startup

Build #30803

Released on: February 4, 2022

  • Minimum JDK/JRE version supported by the FLS is 11. Please update it before the FLS update.

  • Updated a log4j2 version 2.17.1 with security fix for CVE-2021-44832.

  • log4j 1.12 is replaced with reload4j in JetLauncher

  • Explicit "Logout" action is added to License Server Dashboard

Build #30333

Released on: December 21, 2021

Updated a log4j2 version 2.17.0 with security fix for CVE-2021-45105.

Build #30241

Released on: December 15, 2021

Updated a log4j2 version 2.16.0 with security fix for CVE-2021-45046.

Build #30211

Released on: December 11, 2021

Updated a log4j2 version 2.15.0 with 0day security fix for CVE-2021-44228.

Build #29959

Released on: November 22, 2021


  • Proxy settings were ignored in the version based on Java 11 after build #29591.

  • Code With Me bundled plugin from IDE RC builds took unrelated license.

Apache Commons Compress lib updated to version 1.21 with security fixes.

Build #29591

Released on: October 20, 2021

  • License Server is Java 11 compatible now.

  • Amazon Corretto is bundled with MSI distributive.

  • JQuery updated to recent 3.6.0 version.

Build #28662

Released on: August 09, 2021

Limit License Server authorization session to 15 minutes of inactivity.

Build #28150

Released on: June 30, 2021

Fixed the problem when some License Servers' jars were false-positive detected as viruses by an antivirus due to code obfuscation.

Build #27608

Released on: May 28, 2021

  • Updated a Jetty version from 9.4.35 to 9.4.39

  • Updated a log4j2 version from 2.11.2 to 2.14.1 with security fixes for CVE-2019-17571 and CVE-2020-9488.

  • Fixed missing icons and logo when License Server deployed under non-root context.

Build #26498

Released on: March 15, 2021

Handling requests from clients with IPv6 is fixed.

Build #25980

Released on: January 18, 2021

  • Updated a Jetty version from 9.4.29 to 9.4.35 with security fixes for CVE-2019-17638, CVE-2020-27216, and CVE-2020-27218.

  • New version notification is fixed on the Dashboard.

  • Parsing of IPv6 while License Server works behind a proxy server is fixed.

Build #24694

Released on: October 8, 2020

Improved performance by:

  • decreasing the size of statistics files on a disk;

  • fixing bugs in reporting on highly loaded servers.

Turned off the logging of license obtaining/releasing by default. To turn on the loggers, see Changing logging level.

Build #24086

Released on: August 17, 2020

Updated security libraries:

  • Jackson from 2.9.10 to 2.11.2

  • Apache POI from 3.17 to 4.1.2

Added status display of configured proxies on check-connection and check-configuration pages. For more information about configuring proxy, see Reverse proxy and Proxy settings.

Fixed checking a new server build within API.

Build #23527

Released on: June 19, 2020

  • Updated a Jetty version from 9.4.19 to 9.4.29.

  • Bundled JDK changed from OracleJDK to Amazon Correto JDK v. for Windows MSI version.

  • Fixed issuing tickets for ReSharper Ultimate.

  • Fixed the link to documentation on FLS dashboard.

  • Jetty version won't be displayed.

Build #22218

Released on: February 4, 2020

Fixed an inccorrect reloading machanism of the access-config.json file which contains the LDAP integration configuration. It caused the "Too many open files" error.

Build #21137

Released on: October 24, 2019

  • Updated a Jetty version from 9.3.24 to 9.4.19.

  • Fixed an incorrect displaying of licenses with fallbacks while requesting report.

  • Excluded the situation when priority user could lose the ticket if another priority user made a request.

Build #20308

Released on: July 30, 2019

  • Fixed an error that caused when requesting and downloading reports from Internet Explorer 11.

  • Fixed the License Server denial of service caused by a parallel report requests. Server will occur the 503 error with the message "Server is generating another report at this time. Please return later." if the report cannot be generated, instead of causing License Server performance degradation.

Build #20267

Released on: July 20, 2019

  • Fixed an error that occurred at build #19488 when requesting email report

  • Fixed an incorrect plugin names representation

  • Fixed a problem with the number of licenses presented on FLS dashboard

  • Changed the default logging level of ticket handling from INFO to WARN. To revert it, see Changing logging level

Build #19488

Released on: April 2, 2019

Fix unexpected behaviour of virtual hosts configuration parameter for MSI distribution.

Build #19340

Released on: March 15, 2019

  • Improvement: custom home folder for usage statistics and registration info

  • Bugfix of R# and ReSharper Ultimate distribution with access config rules

  • Improvement: API endpoint with License Server's versions list

  • Improvement: memory usage is added to /check-configuration page

Build #18692

Released on: December 24, 2018

  • Bugfix for the processing of licenses without fallback version, placed on the server

  • Bugfix of the "Maximum length of cell contents" error during a report generating

  • "ticketid" parameter is added to the real-time statistics output

  • Bugfix of the incorrect All Products Pack licenses distribution

  • IP is added as access rules parameter

  • Jetty version update: 9.3.24.v20180605

Build #17955

Released on: September 26, 2018

This builds fixes a known issue in sessions sharing logic during the registration process and changes the logic of "New version is available" banner appearance.

Build #17768

Released on: September 5, 2018

  • New user restrictions parameter is added (User restrictions)

  • New API endpoint is added to get the list of all licenses allocated on the license server (User reporting)

Build #17437

Released on: July 30, 2018

  • This build fixes the issue that caused connected products with version RC 2018.2 to each occupy one license every time the license was checked. This could result in one product hoarding licenses.

  • Build #17437 handles release candidate versions correctly

Build #17211

Released on: July 20, 2018

This update fixes a known issue with the previously released version (build #17043) where FLS lost connection to JetBrains after server restart.

Last modified: 27 November 2023