Wikidata:Property proposal/previous property definition

Not done

Description	revid of property page before the property's format was change. Qualify with "end date" (P582) to indicate the date
Data type	External identifier
Domain	external-id properties
Allowed values	\d
Example 1	SBN author ID (P396) → 1572819376 qualified with end time (P582)=??
Example 2	MISSING
Example 3	MISSING
Expected completeness	eventually complete (Q21873974)
Formatter URL	https://www.wikidata.org/w/index.php?oldid=$1
Distinct-values constraint	yes

Depending on the outcome of Property_talk:P396#Discussion_about_replacing_values_with_a_new_format_or_scheme and similar discussions, we may want to provide a way to versionize property definitions to ensure users can retrieve previous ones. The presence of the property may also allow to determine that they have changed. (Add your motivation for this property here.) --- Jura 12:52, 9 February 2022 (UTC)[reply]

Would this be useful for any property whose scope is broadened, constraints changed significantly, etc.? — Martin (MSGJ · talk) 14:30, 9 February 2022 (UTC)[reply]
Comment Referencing the "oldid" in some way does sound useful, but is this the right way to model it? Perhaps the date should be foremost - property definition changed on this date, and then link with a generic revision id property as a qualifier? ArthurPSmith (talk) 18:03, 9 February 2022 (UTC)[reply]
- I suppose it's a matter of POV. I had definition in mind. In both cases, revid can be used (e.g.) in wikibase-cli (Q87194660) to load it. A missing date wouldn't matter that much, but the date only is harder to use. --- Jura 20:08, 9 February 2022 (UTC)[reply]
Not done no support for creation of this property --DannyS712 (talk) 01:38, 3 December 2022 (UTC)[reply]

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