The latest update to iSBEM/SBEM and the NCM modelling guide has released today (Monday 20th November 2017). Bentley Hevacomp will be working on updating the Part L program to reflect these changes and aiming for accreditation by 20th March, 2018.
An update to Bentley Hevacomp software will be released shortly afterwards.
(NOTE: The date above has been amended on request of DCLG)