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|Content handlers and storage: $wgExternalDiffEngine|
|Name of the external diff engine to use.
|Introduced in version:||1.6.0 (r12987)|
|Removed in version:||still in use|
|Allowed values:||(string) or
|Other settings: Alphabetical | By function|
Name of the external diff engine to use, or false to use the internal engine.
The possible values are:
- false: wikidiff2 if available, PHP implementation else.
- wikidiff2: Wikimedia's fast difference engine implemented as a PHP/HHVM module.
- wikidiff and wikidiff3 are treated as false for backwards compatibility.
- any other string is treated as a path to external diff executable.
This setting replaces $wgUseExternalDiffEngine.