diff --git a/en/08_Changelogs/5.4.0.md b/en/08_Changelogs/5.4.0.md
index 6e9ca3dd..6165640b 100644
--- a/en/08_Changelogs/5.4.0.md
+++ b/en/08_Changelogs/5.4.0.md
@@ -265,6 +265,7 @@ The `SilverStripe\CMS\Model\SiteTree.DESCRIPTION` localisation key (along with t
 - [`Subsite::getMembersByPermission()`](api:SilverStripe\Subsites\Model\Subsite::getMembersByPermission()) has been deprecated. It will be removed without equivalent functionality to replace it.
 - The `$join` parameter for the [`Subsite::get_from_all_subsites()`](api:SilverStripe\Subsites\Model\Subsite::get_from_all_subsites()) method has been deprecated. Use [leftJoin($table, $joinClause)](api:SilverStripe\ORM\DataList::leftJoin()) instead.
 - Passing a boolean value to the `$mergeStrategy` argument in [`Form::loadDataFrom()`](api:Silverstripe\Forms\Form::loadDataFrom()) has been deprecated. Pass [`Form::MERGE_CLEAR_MISSING`](api:Silverstripe\Forms\Form::MERGE_CLEAR_MISSING) instead of `true` and `0` instead of `false`.
+- The [`HTTP.ignoreDeprecatedCaching`](api:SilverStripe\Control\HTTP->ignoreDeprecatedCaching) configuration property has been deprecated. It will be removed without equivalent functionality to replace it.
 
 ## Bug fixes