diff --git a/CHANGELOG.md b/CHANGELOG.md
index c28bf9dc..298059d6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 BACKWARDS INCOMPATIBILITIES
 * all: This is the first release to use the 0.12 SDK required for Terraform 0.12 support. Some provider behaviour may have changed as a result of changes made by the new SDK version.
+* compute: `google_compute_instance_group` will not reconcile instances recreated within the same `terraform apply` due to underlying `0.12` SDK changes in the provider. [GH-616]
 * container: `google_container_cluster` will have a diff if `master_authorized_networks.cidr_blocks` defined in config doesn't exactly match the real state; if so, it will need to be reconciled. [GH-3427]
 
 
@@ -10,6 +11,10 @@ BUG FIXES:
 
 ## 2.4.0 (April 15, 2019)
 
+KNOWN ISSUES:
+
+* compute: `google_compute_backend_service` resources created with past provider versions won't work with `2.4.0`. You can pin your provider version or manually delete them and recreate them until this is resolved. (https://github.com/terraform-providers/terraform-provider-google/issues/3441)
+* dns: `google_dns_managed_zone.visibility` will cause a diff if set to `public`. Setting it to `""` (defaulting to public) will work around this. (https://github.com/terraform-providers/terraform-provider-google/issues/3435)
 
 FEATURES:
 * **New Resource**: `google_access_context_manager_access_policy` is now available at GA. ([#3358](https://github.com/terraform-providers/terraform-provider-google/issues/3358))