MediaWiki:Apihelp-query+revisions-param-prop/en

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Which properties to get for each revision:

ids
The ID of the revision.
flags
Revision flags (minor).
timestamp
The timestamp of the revision.
user
User that made the revision.
userid
User ID of revision creator.
size
Length (bytes) of the revision.
sha1
SHA-1 (base 16) of the revision.
contentmodel
Content model ID.
comment
Comment by the user for revision.
parsedcomment
Parsed comment by the user for the revision.
content
Text of the revision.
tags
Tags for the revision.