Dear Colleague, As you are a past user of the DL_MESO mesoscale simulation package I am sending you this e-mail to announce the release of version 2.2 of DL_MESO. The new version contains a serial and parallel Dissipative Particle Dynamics (DPD) code, written in C++. The new package is still free to academic users. If you wish to obtain a copy of the new release, please visit the new DL_MESO website, which is located via a button on the CCP5 site (www.ccp5.ac.uk). There you may register for the new version and be automatically sent the download instructions. This is the way new versions of DL_MESO will be distributed in the future. Bill Smith 2006-11-21