diff --git a/CHANGELOG.md b/CHANGELOG.md
index f07198be927..b26919fa3da 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,24 @@
 ## 3.28.0 (Unreleased)
 
+FEATURES:
+
+* **New Resource:** `aws_sagemaker_model_package_group` ([#17366](https://github.com/hashicorp/terraform-provider-aws/issues/17366))
+* **New Resource:** `aws_securityhub_organization_admin_account` ([#17501](https://github.com/hashicorp/terraform-provider-aws/issues/17501))
+
 ENHANCEMENTS:
 
+* data-source/aws_iam_policy_document: Support merging policy documents by adding `source_policy_documents` and `override_policy_documents` arguments ([#12055](https://github.com/hashicorp/terraform-provider-aws/issues/12055))
 * provider: Add terraform-provider-aws version to HTTP User-Agent header ([#17486](https://github.com/hashicorp/terraform-provider-aws/issues/17486))
+* resource/aws_ec2_traffic_mirror_filter_rule: Add arn attribute. ([#13949](https://github.com/hashicorp/terraform-provider-aws/issues/13949))
+* resource/aws_ec2_traffic_mirror_filter_rule: Add plan time validation to `destination_port_range.from_port`, 
+`destination_port_range.to_port`, `source_port_range.from_port`, and `source_port_range.to_port`. ([#13949](https://github.com/hashicorp/terraform-provider-aws/issues/13949))
 * resource/aws_sns_topic_subscription: Add `redrive_policy` argument ([#11770](https://github.com/hashicorp/terraform-provider-aws/issues/11770))
 
+BUG FIXES:
+
+* resource/aws_glue_catalog_database: Use Catalog Id when deleting Databases. ([#17489](https://github.com/hashicorp/terraform-provider-aws/issues/17489))
+* resource/aws_instance: Fix use of `throughput` and `iops` for `gp3` volumes at the same time ([#17380](https://github.com/hashicorp/terraform-provider-aws/issues/17380))
+
 ## 3.27.0 (February 05, 2021)
 
 FEATURES: