Version 2.0.1 of Open Babel

Release Notes: Highlights include improved memory usage and fixes for compilation problems on AIX, Solaris, Fedora Core, and with the new GCC-4.1 compiler. Several crashes were fixed, and significantly improved scripting wrappers for Perl and Python are available. Support for Cygwin and countless bugfixes are also included.

Other releases

  •  10 Jul 2009 17:19

Release Notes: This is a major bugfix release and a stable upgrade, strongly recommended for all users of Open Babel. It includes the new Standardized InChI identifier, fixes for many stereochemistry errors, compilation on Cygwin and MinGW, significantly improved aromatic/Kekule bond assignment, and coordinate generation. Many more bugfixes and small improvements are included.

Release Notes: Highlights include improved force fields and coordinate generation, conformer searching, enhanced plugins including molecular descriptors, filters, and command-line transformations. Many formats are improved or added, including CIF, mmCIF, Gaussian cube, PQR, OpenDX cubes, and more. An improved developer API and scripting support and many, many bugfixes are also included.

  •  08 Jul 2007 00:27

Release Notes: This release includes fixes for several important crashes and many bugfixes and improvements.

Release Notes: This release represents a major update and should be a stable upgrade, strongly recommended for all users of Open Babel. Highlights include a new framework for molecular mechanics force fields, a framework for canonical, unique atom numbering (i.e. an open source canonical SMILES implementation), new scripting interfaces in Ruby and Java, enhancements to the developer API, several highly-requested file formats, and many, many bugfixes and improvements.

  •  26 Jul 2006 08:16

Release Notes: A large number of SMILES and SMARTS bugs were fixed. Several crashes were fixed, and countless other bugs were fixed.


Project Spotlight


A graphical frontend for the Cuneiform OCR tool.


Project Spotlight


A language that adds classes, methods, and other object oriented features to C.