diff --git a/CHANGELOG.md b/CHANGELOG.md
index f16bbf568..38a84223e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,12 +1,26 @@
 Moto Changelog
 ==============
 
+3.1.6
+-----
+Docker Digest for 3.1.6: <autopopulateddigest>
+
+    New Methods:
+        * Organizations:
+            * close_account()
+
+    Miscellaneous:
+        * Autoscaling: the BlockDeviceMappings in LaunchConfigurations and LaunchTemplates are now respected when launching EC2 instances
+        * CloudWatch: get_metric_data() now supports the Dimensions-parameter
+        * ELB: set_rule_priorities() now correctly returns the Rules-attribute
+        * ELBv2: create_target_group() now supports the Tags-parameter
+        * Events: delete_rule() now verifies whether any targets are still attached before deletion
+
+
 3.1.5
 -----
 Docker Digest for 3.1.5: _sha256:79050ce5b729f6eff3282a79dace9cb7e5983588250452f8821aeffa87eca334_
 
-    New Services:
-
     New Methods:
         * ApplicationAutoscaling:
             * delete_scheduled_action()
diff --git a/IMPLEMENTATION_COVERAGE.md b/IMPLEMENTATION_COVERAGE.md
index a7d273cd0..efb05c941 100644
--- a/IMPLEMENTATION_COVERAGE.md
+++ b/IMPLEMENTATION_COVERAGE.md
@@ -2659,6 +2659,7 @@
 - [ ] batch_delete_table_version
 - [ ] batch_get_blueprints
 - [ ] batch_get_crawlers
+- [ ] batch_get_custom_entity_types
 - [ ] batch_get_dev_endpoints
 - [ ] batch_get_jobs
 - [ ] batch_get_partition
@@ -2673,6 +2674,7 @@
 - [ ] create_classifier
 - [ ] create_connection
 - [X] create_crawler
+- [ ] create_custom_entity_type
 - [X] create_database
 - [ ] create_dev_endpoint
 - [X] create_job
@@ -2694,6 +2696,7 @@
 - [ ] delete_column_statistics_for_table
 - [ ] delete_connection
 - [X] delete_crawler
+- [ ] delete_custom_entity_type
 - [X] delete_database
 - [ ] delete_dev_endpoint
 - [ ] delete_job
@@ -2724,6 +2727,7 @@
 - [X] get_crawler
 - [ ] get_crawler_metrics
 - [X] get_crawlers
+- [ ] get_custom_entity_type
 - [ ] get_data_catalog_encryption_settings
 - [X] get_database
 - [X] get_databases
@@ -2774,6 +2778,7 @@
 - [ ] import_catalog_to_glue
 - [ ] list_blueprints
 - [ ] list_crawlers
+- [ ] list_custom_entity_types
 - [ ] list_dev_endpoints
 - [X] list_jobs
 - [ ] list_ml_transforms
@@ -3389,7 +3394,7 @@
 
 ## kms
 <details>
-<summary>43% implemented</summary>
+<summary>42% implemented</summary>
 
 - [X] cancel_key_deletion
 - [ ] connect_custom_key_store
@@ -3413,6 +3418,7 @@
 - [ ] generate_data_key_pair
 - [ ] generate_data_key_pair_without_plaintext
 - [ ] generate_data_key_without_plaintext
+- [ ] generate_mac
 - [ ] generate_random
 - [X] get_key_policy
 - [X] get_key_rotation_status
@@ -3439,6 +3445,7 @@
 - [X] update_key_description
 - [ ] update_primary_region
 - [ ] verify
+- [ ] verify_mac
 </details>
 
 ## lambda
@@ -3859,12 +3866,12 @@
 
 ## organizations
 <details>
-<summary>75% implemented</summary>
+<summary>76% implemented</summary>
 
 - [ ] accept_handshake
 - [X] attach_policy
 - [ ] cancel_handshake
-- [ ] close_account
+- [X] close_account
 - [X] create_account
 - [ ] create_gov_cloud_account
 - [X] create_organization
diff --git a/docs/docs/services/glue.rst b/docs/docs/services/glue.rst
index 6378cbe03..1eba5dc41 100644
--- a/docs/docs/services/glue.rst
+++ b/docs/docs/services/glue.rst
@@ -32,6 +32,7 @@ glue
 - [ ] batch_delete_table_version
 - [ ] batch_get_blueprints
 - [ ] batch_get_crawlers
+- [ ] batch_get_custom_entity_types
 - [ ] batch_get_dev_endpoints
 - [ ] batch_get_jobs
 - [ ] batch_get_partition
@@ -46,6 +47,7 @@ glue
 - [ ] create_classifier
 - [ ] create_connection
 - [X] create_crawler
+- [ ] create_custom_entity_type
 - [X] create_database
 - [ ] create_dev_endpoint
 - [X] create_job
@@ -67,6 +69,7 @@ glue
 - [ ] delete_column_statistics_for_table
 - [ ] delete_connection
 - [X] delete_crawler
+- [ ] delete_custom_entity_type
 - [X] delete_database
 - [ ] delete_dev_endpoint
 - [ ] delete_job
@@ -97,6 +100,7 @@ glue
 - [X] get_crawler
 - [ ] get_crawler_metrics
 - [X] get_crawlers
+- [ ] get_custom_entity_type
 - [ ] get_data_catalog_encryption_settings
 - [X] get_database
 - [X] get_databases
@@ -147,6 +151,7 @@ glue
 - [ ] import_catalog_to_glue
 - [ ] list_blueprints
 - [ ] list_crawlers
+- [ ] list_custom_entity_types
 - [ ] list_dev_endpoints
 - [X] list_jobs
 - [ ] list_ml_transforms
diff --git a/docs/docs/services/kms.rst b/docs/docs/services/kms.rst
index 8670efa5a..db33d4a66 100644
--- a/docs/docs/services/kms.rst
+++ b/docs/docs/services/kms.rst
@@ -49,6 +49,7 @@ kms
 - [ ] generate_data_key_pair
 - [ ] generate_data_key_pair_without_plaintext
 - [ ] generate_data_key_without_plaintext
+- [ ] generate_mac
 - [ ] generate_random
 - [X] get_key_policy
 - [X] get_key_rotation_status
@@ -75,4 +76,5 @@ kms
 - [X] update_key_description
 - [ ] update_primary_region
 - [ ] verify
+- [ ] verify_mac
 
diff --git a/docs/docs/services/organizations.rst b/docs/docs/services/organizations.rst
index 797bc3e8a..92106b497 100644
--- a/docs/docs/services/organizations.rst
+++ b/docs/docs/services/organizations.rst
@@ -28,7 +28,7 @@ organizations
 - [ ] accept_handshake
 - [X] attach_policy
 - [ ] cancel_handshake
-- [ ] close_account
+- [X] close_account
 - [X] create_account
 - [ ] create_gov_cloud_account
 - [X] create_organization