![[CIF logo]](https://www.iucr.org/__data/assets/image/0003/125499/CIF_v2.5.jpg)
DDL dictionary version 2.1.6
_dictionary_history.update
Name:'_dictionary_history.update'
Definition:
The date that the last dictionary revision took place.
Type: yyyy-mm-dd
Mandatory item: yes
Category: dictionary_history
Definition:
The date that the last dictionary revision took place.
Type: yyyy-mm-dd
Mandatory item: yes
Category: dictionary_history
Copyright © - All Rights Reserved - International Union of Crystallography