diff --git a/README.md b/README.md
index c41cc6e..9c7e43b 100644
--- a/README.md
+++ b/README.md
@@ -203,11 +203,18 @@ pgFirstAid is designed to be lightweight and safe to run on production systems:
 - Typical execution time: <1 second on most databases
 - No locking or blocking of user queries
 
+## Testing
+
+- Query and health-check coverage is validated with pgTAP assertions grouped by severity.
+- Integration tests cover live runtime behavior, function/view parity, and checks that need concurrent sessions or timing control.
+- A coverage guard ensures every `check_name` in `pgFirstAid.sql` is referenced by at least one pgTAP assertion.
+- Managed database validation is exercised through the reusable workflow in `.github/workflows/managed-db-validate.yml`.
+
 ## Compatibility
 
-- **PostgreSQL 10+** - Fully supported, but only testing on 15+. This will change as versions are deprecated
+- **PostgreSQL 10+** - Supported, with active automated validation focused on PostgreSQL 15-18
 - **PostgreSQL 9.x** - Most features work (minor syntax adjustments may be needed)
-- Works with all PostgreSQL-compatible databases (Amazon RDS, Aurora, Azure Database, etc.)
+- Works with PostgreSQL-compatible databases, including Amazon RDS, Aurora, Azure Database for PostgreSQL, GCP Cloud SQL, and self-hosted PostgreSQL
 
 ## Contributing
 
diff --git a/pgFirstAid.sql b/pgFirstAid.sql
index 833a72e..2262943 100644
--- a/pgFirstAid.sql
+++ b/pgFirstAid.sql
@@ -906,7 +906,7 @@ insert
    select
 	'MEDIUM' as severity,
 	'Table Health' as category,
-	'Tables larger than 100GB' as check_name,
+	'Tables larger than 50GB' as check_name,
 	ts.table_schema || '"."' || ts.table_name as object_name,
 	'The following table' as description,
 	 ts.size_pretty as current_value,
diff --git a/testing/pgTAP/03_high_tests.sql b/testing/pgTAP/03_high_tests.sql
index 5664c42..f73e7bc 100644
--- a/testing/pgTAP/03_high_tests.sql
+++ b/testing/pgTAP/03_high_tests.sql
@@ -1,5 +1,5 @@
 BEGIN;
-SELECT plan(42);
+SELECT plan(44);
 
 SELECT ok(
     (SELECT count(*) >= 0 FROM pg_firstAid() WHERE check_name = 'Current Blocked/Blocking Queries'),
@@ -172,6 +172,15 @@ SELECT ok(
     'View executes Table with more than 50 columns check'
 );
 
+SELECT ok(
+    (SELECT count(*) >= 0 FROM pg_firstAid() WHERE check_name = 'Tables larger than 50GB'),
+    'Function executes Tables larger than 50GB check'
+);
+SELECT ok(
+    (SELECT count(*) >= 0 FROM v_pgfirstaid WHERE check_name = 'Tables larger than 50GB'),
+    'View executes Tables larger than 50GB check'
+);
+
 SELECT ok(
     (SELECT count(*) >= 0 FROM pg_firstAid() WHERE check_name = 'High Connection Count'),
     'Function executes High Connection Count check'
diff --git a/view_pgFirstAid.sql b/view_pgFirstAid.sql
index c102845..22f9eab 100644
--- a/view_pgFirstAid.sql
+++ b/view_pgFirstAid.sql
@@ -849,7 +849,7 @@ order by
 select
 	'MEDIUM' as severity,
 	'Table Health' as category,
-	'Tables larger than 100GB' as check_name,
+	'Tables larger than 50GB' as check_name,
 	ts.table_schema || '"."' || ts.table_name as object_name,
 	'The following table' as description,
 	 ts.size_pretty as current_value,
diff --git a/view_pgFirstAid_managed.sql b/view_pgFirstAid_managed.sql
index 7807d7f..6b2ff2d 100644
--- a/view_pgFirstAid_managed.sql
+++ b/view_pgFirstAid_managed.sql
@@ -843,7 +843,7 @@ order by
 select
 	'MEDIUM' as severity,
 	'Table Health' as category,
-	'Tables larger than 100GB' as check_name,
+	'Tables larger than 50GB' as check_name,
 	ts.table_schema || '"."' || ts.table_name as object_name,
 	'The following table' as description,
 	 ts.size_pretty as current_value,