Slicer:Slicer2.7 Release Notes

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For the latest Slicer documentation, visit the read-the-docs.

New Features in Slicer 2.7

Slicer 2.7 has many new features! In addition to numerous bug fixes and other improvements, the list here highlights most major some new features in Slicer 2.7. Please also note that many of these new features are still being developed and will be improved in future releases, so you may encounter some unexpected behaviour. Please send questions about unexpected behavior to the Slicer User's mailing list and reports to the bug tracker.

Updates to existing modules:

EMSegmenter and EMAtlasBrainClassifier
Generic Reader module

Additional functionality:

System Improvements:


You don't have to build Slicer yourself to use it. If you want a precompiled version, go here.

To build slicer from source, see Slicer:Slicer_2.7_Building

  • Windows
    • distributed versions are built with Microsoft Visual Studio .NET in release mode (note that there may be some problems compiling with .NET 2003)
  • Solaris
    • We are building using gcc version 3.0.3.
  • Linux
    • We are building using gcc version 2.96 on RedHat 7, gcc version 3.2.2 on RedHat 9, and gcc 3.2.3 on RedHat Enterprise Linux.
  • Mac OSX
    • We are building using gcc version 3.3.


No special installation is needed -- simply unpack the distribution archive and run the platform-specific executable at the top level (for example, slicer2-win32.exe for the Windows build). The slicer distribution contains all the needed support libraries and has been tested on a variety of system configurations.

Known Issues: Base Operations

  • All platforms

  • Linux
    • If you are having problems running Slicer over an ssh connection with X forwarding, the problem may be that you don't have the appropriate OpenGL libraries on the machine you're sshing from.
  • Mac

Known Issues: Modules

As a research platform, Slicer includes several modules that are not yet fully implemented, but which the developers still felt were far enough along in functionality to provide utility for the community. As such, you may find that some operations do not behave as expected, particularly where they interact with other slicer functions. Please let us know about these issues by filing appropriate bug reports.

Reporting Bugs

Please go to and report bugs for Slicer version 2.5.x.

Where to go for Help

Compilation/development questions can be sent to the Slicer Developer's Mailing List. Questions about running Slicer can be sent to the Slicer User's Mailing List.


This work is part of the National Alliance for Medical Image Computing (NAMIC), funded by the National Institutes of Health through the NIH Roadmap for Medical Research, Grant U54 EB005149. Information on the National Centers for Biomedical Computing can be obtained from This work was also supported by NIH grant P41 RR13218 (NAC) and the Biomedical Informatics Research Network.