Proposed updates to the dictionaries will be available at the COMCIFS Github site. Github tools can be used to track and show changes to these dictionaries over time.
Note that, in order to preserve the information contained in archival CIFs, CIF dictionary changes cannot remove datanames, nor can they change the meaning of datanames. The review therefore covers things like:
- Addition of datanames
- Addition of enumerated values to datanames
- Clarifying text definitions