For more information about changed features, please check out the
:ref:`release notes <release-notes>`.
+Version 2020
+^^^^^^^^^^^^
+
+gmx convert-trj
+...............
+
+**new**
+
+:ref:`gmx convert-trj` has been introduced as a selection-enabled alternative
+for exchanging trajectory file format (previously done in :ref:`gmx trjconv`).
+
+gmx extract-cluster
+...................
+
+**new**
+
+:ref:`gmx extract-cluster` has been introduced as a selection-enabled way to
+write sub-trajectories based on the output from a cluster analysis. The
+corresponding option **-sub** in :ref:`gmx trjconv` has been removed.
+
Version 2018
^^^^^^^^^^^^