fix: Update Aurora PostgreSQL version from 15.4 to 15.8 for regional compatibility

icoxfog417 · icoxfog417 · commit c7efb050d0bf · 2025-12-03T08:54:45.000Z
- Version 15.4 is not available in all AWS regions (e.g., us-east-1)
- Update to version 15.8 which is stable and widely available
- VER_15_8 constant is compatible with older CDK versions
- Tested successfully in us-east-1
- No breaking changes expected (minor version upgrade within same major version)
diff --git a/langfuse-v3/cdk_stacks/aurora_postgresql.py b/langfuse-v3/cdk_stacks/aurora_postgresql.py
@@ -65,7 +65,7 @@ def __init__(self, scope: Construct, construct_id: str, vpc, **kwargs) -> None:
     )
     rds_credentials = aws_rds.Credentials.from_secret(db_secret)
 
-    rds_engine = aws_rds.DatabaseClusterEngine.aurora_postgres(version=aws_rds.AuroraPostgresEngineVersion.VER_15_4)
+    rds_engine = aws_rds.DatabaseClusterEngine.aurora_postgres(version=aws_rds.AuroraPostgresEngineVersion.VER_15_8)
 
     #XXX: https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraPostgreSQL.Reference.ParameterGroups.html#AuroraPostgreSQL.Reference.Parameters.Cluster
     rds_cluster_param_group = aws_rds.ParameterGroup(self, 'AuroraPostgreSQLClusterParamGroup',

Original file line number	Diff line number	Diff line change
`@@ -65,7 +65,7 @@ def __init__(self, scope: Construct, construct_id: str, vpc, **kwargs) -> None:`
`65`	`65`	`)`
`66`	`66`	`rds_credentials = aws_rds.Credentials.from_secret(db_secret)`
`67`	`67`
`68`		`- rds_engine = aws_rds.DatabaseClusterEngine.aurora_postgres(version=aws_rds.AuroraPostgresEngineVersion.VER_15_4)`
	`68`	`+ rds_engine = aws_rds.DatabaseClusterEngine.aurora_postgres(version=aws_rds.AuroraPostgresEngineVersion.VER_15_8)`
`69`	`69`
`70`	`70`	`#XXX: https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraPostgreSQL.Reference.ParameterGroups.html#AuroraPostgreSQL.Reference.Parameters.Cluster`
`71`	`71`	`rds_cluster_param_group = aws_rds.ParameterGroup(self, 'AuroraPostgreSQLClusterParamGroup',`