Manual:$wgCacheEpoch

Set this to a timestamp to invalidate all pages cached prior to that (e.g. to the current time to invalidate all currently cached pages). Affects both client- and server-side caching, including assets controlled by the ResourceLoader .

For a quick copy-paste you can use the following line, whose timestamp is generated via {{CURRENTTIMESTAMP}}:

$wgCacheEpoch = 20251111144207;

If you are using a Unix-like system you can get the current date by entering the following on the command-line:

date+%Y%m%d%H%M%S

To force a file, such as LocalSettings.php to be re-read when touched, you can use $wgInvalidateCacheOnLocalSettingsChange .

• Manual:$wgInvalidateCacheOnLocalSettingsChange
• Manual:$wgThumbnailEpoch

• MediaWiki configuration settings
• MediaWiki configuration settings introduced before version 1.1.0
• MediaWiki configuration settings still in use
• Cache variables