It is a pleasure to announce two new PLUMED releases.
Release 2.1.4 is a maintenance release on the 2.1.x branch with a few fixes, including important ones in NAMD patches (requires re-patching) and in HISTOGRAM keyword, see: http://goo.gl/22zpFI.
Release 2.2.0 is a release that contains several new features, including a partial openMP parallelization and several new collective variables and methods, see: http://goo.gl/2GFaco. This version can now be considered as fully stable.
We will still fix bugs in branch 2.1.x for a while, but users are encouraged to upgrade to the new 2.2.x release. Just read carefully the change log before upgrading.
You can find both releases in the download section of the plumed webpage. They are also tagged on github (v2.1.4 and v2.2.0).