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Release Notes for i2b2 Version 1.5.1

These release notes address issues found and information about the i2b2 version 1.5.1. Unless otherwise specified, these notes apply to the following operating systems:

  • Apple Macintosh OS x 10.4/5
  • Apple Macintosh OS x 10.6 (Snow Leopard)
  • Microsoft Windows XP Professional
  • Microsoft Windows Vista Professional
  • Microsoft Windows 7
  • Microsoft Windows Server 2003

Additional Information

Included in this document are the following sections:




Information related to installing the release.

Third Party Software

Software that is utilized by i2b2 but is owned, maintained and licensed by other companies is referred to as "Third Party Software". Any version changes made or needed to be made to the users system will be noted in this section.

New Features

A list of new enhancements will be included in this section. A brief description and a reference to the specification will be provided.


Any changes that are not considered an enhancement will be included in this section. This may be a fix for a problem found or it may be a change to existing code but not related to a problem.


i2b2 licensing information


Trademark information


This release note applies to you if you are upgrading to 1.5.1 from a computer running an earlier version of the i2b2 workbench. This release contains only server changes so it is only necessary to update the server. The 1.5 client will continue to work with the 1.5.1 server.


i2b2 release 1.5.1 contains the following fixes to the server.

Obfuscated counts are calculating incorrectly.

Obfuscated results were calculated incorrectly. The number of patients returned was being doubled when the same query was run a second time. This issue only affects obfuscated users.
STATUS/RESOLUTION: This issue has been resolved. The number of patients returned for obfuscated users is now calculated correctly.

PM/Admin: Not able to add or delete a project user parameter.

Users are not able to add or delete a project user parameter from within the administration module. This is only a problem with project user parameters. All other parameters work correctly.
STATUS/RESOLUTION: This issue has been resolved. Users can now add and delete project user parameters.


The i2b2 source code is licensed under the i2b2 Software License 2.1. This includes but is not limited to all code in the edu.harvard.i2b2.* package namespace.


Microsoft, Windows, Windows XP, Windows Vista, Windows 7 and Windows Server are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.
Mac OS is a registered trademark of Apple, Inc.
All other trademarks are the property of their respective owners.