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Release notes for MegaMatcher Accelerator 10

List of releases:

See MegaMatcher Accelerator 13.x release notes for the newer versions.

May 6, 2019


  • Fixed issues with ListIds, Get and GetCount operations not working after restart if clear operation was used.
  • Fixed a number of other minor bugs and issues.

January 29, 2019


  • Fixed issues with clear operation handling when loading database on restart.
  • Fixed a rare crash when non-running node contained task.
  • Fixed a number of other minor bugs and issues.

Updates and improvements:

  • Included some performance optimizations.

December 4, 2018

New features:

  • Added support for large fingerprint compression.


  • Fixed a number of other small bugs and issues.

September 4, 2018


  • Fixed a bug where biometric operations were sometimes allowed on not fully loaded database.
  • Fixed issues with gathering statistics.
  • Fixed a number of other small bugs and issues.

Updates and improvements:

  • Optimized enroll speed.

August 9, 2018

New features:

  • Added a Statistics tab to WebConfig to enable biometric properties examination in the database. This can be useful for optimizing MegaMatcher Accelerator parameters for specific biometric data.


  • Fixed some issues with the Clear operation.
  • Fixed a rare crash when incorrect face templates are used.
  • Fixed a number of other small bugs and issues.

Updates and improvements:

  • More biometric data now can be loaded into memory for faster High-Availability scenarios.

June 19, 2018

  • Fixed issues with NBiometricNode not starting after reboot.
  • Fixed a number of other small bugs and issues.
  • Improved task throughput.
  • Improved error handling in case of dependent service failures.

May 11, 2018

  • Added a possibility to change biometric parameters without stopping the cluster.
  • Fixed support for offline installation.
  • Fixed List and VerifyOffline operations to be compatible with other products.
  • Fixed a number of other small bugs and issues.

March 28, 2018

  • Added a new cluster architecture, which treats all nodes as equal (no primary node) and provides better synchronization, scalability and failover.
  • Fixed a number of other small bugs and issues.
  • Improved metrics.
  • Optimized database for higher throughput.
  • Improved handling of recovery after network partition.

March 19, 2018

  • Fixed an issue with ISO fingerprint template identification when mixed with proprietary templates.
  • Fixed a rare crash which could be triggered by very high loads.
  • Fixed a number of other small issues.
  • Added more diagnostic metrics.
  • Improved fingerprint identification performance.
  • Improved the fingerprint matching algorithm performance on MegaMatcher Accelerator Extreme edition.

February 27, 2018

  • Fixed issues with possible crashes on extremely high load.
  • Fixed possible MMA reconfiguration issue when .deb package is used to update previous ISO installation (reconfiguration could happen on machine restart).
  • Fixed a number of other small issues.
  • Added a possibility to install the MegaMatcher Accelerator Extreme Edition without Internet connection, as all other editions.

February 12, 2018

  • Fixed some UI issues in the Web Config.
  • Fixed a number of other small issues.
  • Added 'Force small fingers template' configuration parameter to use small fingerprint templates in memory (not changing templates stored on disk).
  • Improved accuracy of large fingerprint matching.
  • Updated insallation support with more Debian versions, including Debian 9.X.
  • Updated statistics to show more details for performance diagnostics.

October 26, 2017

  • Fixed issue with fingerprint matching details not filled properly.
  • Fixed crash when deleting lots of accelerated faces.
  • Fixed WebConfig exhausting sockets when left open for many hours.
  • Fixed a number of small issues.

July 27, 2017

  • Fixed offline installer. The installer still shows a message that it cannot connect to the Internet, but it can be safely closed.
  • Fixed issues with parallel servers not starting to apply events in some cases.
  • Fixed a number of small issues.
  • Restored UI to edit secondary server configurations.

July 13, 2017

  • Fixed issue with obtaining too many licenses if single dongle serves multiple systems.
  • Fixed issue with display status in WebConfig when not all modalities are present.
  • Restored secondary servers configuration in WebConfig.

June 21, 2017

The first release of MegaMatcher Accelerator 10.0.

  • New edition: MegaMatcher Accelerator Extreme. New MegaMatcher Accelerator Extreme edition is introduced which allows to achieve up to 10x identification performance increase and up to 4x database capacity increase (comparing to previous version top configuration) to meet the most demanding requirements.
  • Improved biometric algorithms. Improved fingerprint matching algorithm (better quality with Speed Level 1, better speed with Speed Level 8).
  • Improved parallel server configuration. Reworked replication allows a lot easier and more reliable connection of servers to parallel systems. Now once database is replicated, the MMA is automatically synchronized without additional configuration. New scenarios become possible, such as connecting more than two servers in replication chain or more complex topology. Previously used complex parallel server configurations are longer supported. In case upgrading from previous version of MMA where parallel servers were setup, it is needed to reconfigure to use the new method.
  • New RESTful administration API. Now all the functionality available for administrator from WebConfig is also exposed through RESTful API for programmatic access. This allows new automation and integration with other systems scenarios. The API covers full range of available administration operations and replaces very limited NCluster API.
  • NCluster API is now deprecated. For biometric operations, NBiometricClient should be used. For administrative operations, the new RESTful API should be used.
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