Hello, We are happy to announce the release of Kwant 1.2 [1]. Kwant 1.2 is identical to Kwant 1.1 except that it has been updated to run on Python 3.4 and above. Bugfix releases for the 1.1 and 1.2 series will mirror each other, i.e. 1.1.3 and 1.2.3 will fix the same bugs. Starting with Kwant 1.2, all Kwant development will target Python 3. We plan, however, to maintain Python 2 support with the 1.1 series for several years. At this moment, Kwant 1.2 packages are available [2] for: Debian, Ubuntu & Windows. Arch Linux and Mac are not ready yet, but will hopefully follow soon. Please do report any problems (especially with installation) that you may encounter with the new version. Thanks to everyone who contributed to this release! Happy kwanting, Christoph on behalf of the Kwant team [1] http://kwant-project.org/doc/1/pre/whatsnew/1.2 [2] http://kwant-project.org/install