Deprecated functionality

Changes anticipated to GROMACS 2025 functionality

Functionality deprecated in GROMACS 2025

MTTK pressure coupling is deprecated

Issue 5072

The TNG trajectory format is deprecated

The TNG file format will be removed in a future release. It will be replaced by the more widely used HDF5-based H5MD format. There will be at least one version of GROMACS supporting both H5MD and TNG to allow conversions between the two formats.

Issue 5225