diff --git a/CHANGELOG.md b/CHANGELOG.md
index 8329cb705d91..470043117416 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,9 +1,17 @@
 ## 5.90.0 (Unreleased)
 
+BREAKING CHANGES:
+
+* resource/aws_s3_bucket_lifecycle_configuration: `rule.noncurrent_version_expiration.noncurrent_days` and `rule.noncurrent_version_transition.noncurrent_days` are Required ([#40796](https://github.com/hashicorp/terraform-provider-aws/issues/40796))
+
 FEATURES:
 
 * **New Resource:** `aws_dataexchange_event_action` ([#40552](https://github.com/hashicorp/terraform-provider-aws/issues/40552))
 
+ENHANCEMENTS:
+
+* resource/aws_s3_bucket_lifecycle_configuration: `rule.noncurrent_version_expiration.noncurrent_days` and `rule.noncurrent_version_transition.noncurrent_days` are Required. Technically this is a breaking change, but failure to configure this attribute would have led to `InvalidArgument` or `MalformedXML` errors ([#40796](https://github.com/hashicorp/terraform-provider-aws/issues/40796))
+
 BUG FIXES:
 
 * resource/aws_ecs_service: Fix removal of all `vpc_lattice_configurations` blocks ([#41594](https://github.com/hashicorp/terraform-provider-aws/issues/41594))