Manual:$wgWatchlistExpiryMaxDuration/ja

詳細
strtotime が受け付ける形式の、ウォッチリストの有効期限の相対的な最大期間です. This relates to finite watchlist expiries only. Pages can be watched indefinitely regardless of what this is set to.

This is used to ensure the watchlist_expiry table doesn't grow to be too big.

Only has effect if $wgWatchlistExpiry is true.

Set to null to allow expiries of any duration.