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@icoxfog417 icoxfog417 commented Dec 3, 2025

Issue

Aurora PostgreSQL version 15.4 is not available in all AWS regions, causing deployment failures.

Error

Cannot find version 15.4 for aurora-postgresql (Service: Rds, Status Code: 400)

Changes

  • Updated Aurora PostgreSQL version from 15.4 to 15.8 in langfuse-v3/cdk_stacks/aurora_postgresql.py

We can check available versions by the following command:

aws rds describe-db-engine-versions \
  --engine aurora-postgresql \
  --query 'DBEngineVersions[].EngineVersion' \
  --region us-east-1

Rationale

  • Version 15.8 is stable and available across all AWS regions
  • Minor version upgrade within same major version (no breaking changes expected)
  • Tested successfully in us-east-1

Testing

Deployed successfully in us-east-1 with version 15.8.

@icoxfog417 icoxfog417 changed the title fix: Update Aurora PostgreSQL version from 15.4 to 15.8 for regional compatibility fix: Update Aurora PostgreSQL version from 15.4 to 15.14 for regional compatibility Dec 3, 2025
@icoxfog417 icoxfog417 changed the title fix: Update Aurora PostgreSQL version from 15.4 to 15.14 for regional compatibility fix: Update Aurora PostgreSQL version from 15.4 to 15.8 for regional compatibility Dec 3, 2025
…compatibility

- 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)
@icoxfog417 icoxfog417 force-pushed the fix/aurora-postgres-version-compatibility branch from 66455a4 to c7efb05 Compare December 3, 2025 08:54
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