Dear Colleague, Some updates to DL_MESO 2.7 have been made and are now available for registered users to download as a revised version of the package (2.7 rev 04). You do not need to re-register for this update if you have previously registered for an earlier form of version 2.7: the revised package can be downloaded from the same location as before and decrypted using the same password. If you would like to use version 2.7 but have not yet registered for this version (e.g. if you have previously registered for version 2.6), please do so via the link from the DL_MESO website at www.ccp5.ac.uk/DL_MESO Changes made to DL_MESO include bug fixes and revisions to the Widom insertion DPD post-processing utility (widom_insertion.F90) to improve its reliability and speed up calculations: these include changes to calculations of many-body DPD contributions and the inclusion of OpenMP multithreading. (Many thanks are due to Martin Walker at Durham University for bringing this issue to our attention.) Related updates and small bug fixes to the Java GUI and the user manual have also been made. Michael Seaton 2019-06-25