On the 10th anniversary the OEChem toolkit from OpenEye has been updated,

• Added support for OSX 10.9 Mavericks.
• The next toolkit release, 2014.Jun, will be the last release to support OSX 10.7.
• This release will be the last release to support OSX 10.6.
• The next toolkit release, 2014.Jun, will be the last release to support 64-bit Ubuntu 10.04.
• GCC 4.8.2 support added for RHEL6. GCC 4.8.1 had a bug that made it impossible to compile OpenEye header files. Please use 4.8.2+.
• Experimental support for Python 3.3 added.