Manual:$wgEventRelayerConfig

<translate> Miscellaneous settings</translate>: $wgEventRelayerConfig
Mapping of event channels (or channel categories) to EventRelayer configuration.
<translate> Introduced in version:</translate>	1.27.0 (Gerrit change 261595; git #621487f6)
<translate> Removed in version:</translate>	<translate> still in use</translate>
<translate> Allowed values:</translate>	(array)
<translate> Default value:</translate>	see below
<translate> Other settings:</translate> <translate> Alphabetical</translate> \| <translate> By function</translate>

Default value

<td class="mw-version-versionbox" title="<translate nowrap> The latest stable version is <tvar name=1>1.41</tvar></translate>">

<translate> ≥</translate> 1.41

<translate> MediaWiki version:</translate>

$wgEventRelayerConfig = [
	'default' => [ 'class' => Wikimedia\EventRelayer\EventRelayerNull::class, ],
];

<td class="mw-version-versionbox" title="<translate nowrap> MediaWiki <tvar name=1>1.40</tvar> is legacy version</translate>">

1.31 – 1.40

<translate> MediaWiki versions:</translate>

$wgEventRelayerConfig = [
	'default' => [ 'class' => EventRelayerNull::class, ],
];

<td class="mw-version-versionbox" title="<translate nowrap> MediaWiki <tvar name=1>1.30</tvar> is unsupported version</translate>">

1.27 – 1.30

<translate> MediaWiki versions:</translate>

$wgEventRelayerConfig = [
	'default' => [
		'class' => 'EventRelayerNull',
	]
];