Manual:$wgFeedDiffCutoff

Feed: $wgFeedDiffCutoff
When generating Recentchanges RSS/Atom feed, diffs will not be generated for pages larger than this size.
Introduced in version:1.4.0
Removed in version:still in use
Allowed values:Unspecified
Default value:32768

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When generating Recentchanges RSS/Atom feed, diffs will not be generated for pages larger than this size.

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