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Home < Documentation < 4.3 < ReleaseNotes

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

All Platforms

Naming conventions of the download files:

  • i386 means 32 bit processors (Intel or AMD)
  • amd64 means 64 bit processors (Intel or AMD)

See the Slicer4 project in the bug tracker for outstanding issues.



A three-button mouse (with scroll wheel) will make slicer much easier to work with.


Slicer4 will not start if you have Slicer_HOME environment variable initialized to point to a directory different from your Slicer4 installation.

CentOS 5.7 (provided by Matt House)

I’ve just installed the release of Slicer-4.0.gamma-2011-11-27-linux-amd64 on a fully updated CentOS 5.7 machine. After extracting the archive, I was not able to initially run Slicer because of failed dependencies. Slicer claimed that two libraries were missing. This included ‘’ and ‘’. CentOS has these libraries available, but they were present in ‘/lib64/’ with different names and aliases than Slicer expected.

Under Red Hat based distributions, openssl-0.9.8e (note the ‘e’ appended to the name) is provided and the libraries are named ‘’ and ‘’. There is also a more generic symlink for each of these libraries named ‘’ and ‘’, respectively.

As a workaround, I’ve created symlinks to the libraries with Slicer’s expected names (no ‘e’). This allowed me to run Slicer 4, though I still get a warning message stating (in abbreviated form) ‘SlicerQT-real: /lib64/ no version information available (required by ./lib/Slicer-4.0/’

Fedora 13 (SPL systems)

Creating symlinks on /usr requires root privileges. In the cases when this is not achievable, symlinks can be created in any directory, and LD_LIBRARY_PATH environment variable should be initialized accordingly. Here are the specific steps how this can be done:

> cd ~
> mkdir local
> cd local
> ln -s /usr/lib64/
> ln -s /usr/lib64/
> setenv LD_LIBRARY_PATH ${HOME}/local

(these exact commands should work for the SPL systems)