Reported issues with v1.3.8 release - Please read

[jon-whit]

We've been getting some reports of issues leading to internal server errors with our most recent release v1.3.8. We're investigating these issues and patching them promptly. We will be releasing a v1.3.9 with patches to the reported issues. For now, please avoid upgrading to v1.3.8 to avoid any potential disruption to your services. We advise waiting for v1.3.9 before upgrading.