diff --git a/docs/src/main/sphinx/release/release-440.md b/docs/src/main/sphinx/release/release-440.md
index 1a2c40559b51..2a79828a8e5f 100644
--- a/docs/src/main/sphinx/release/release-440.md
+++ b/docs/src/main/sphinx/release/release-440.md
@@ -7,6 +7,8 @@
 * Improve performance of {func}`arrays_overlap`. ({issue}`20900`)
 * Export JMX statistics for resource groups by default. This can be disabled
   with the `jmxExport` resource group property. ({issue}`20810`)
+* {{breaking}} Remove the defunct `*.http-client.max-connections` properties.
+  ({issue}`20966`)
 * Fix query failure when a check constraint is null. ({issue}`20906`)
 * Fix query failure for aggregations over `CASE` expressions when the input
   evaluation could throw an error. ({issue}`20652`)