Supermarket 3.1.63 was released today and is available for download at https://downloads.chef.io/supermarket. This release contains security updates and is a recommended upgrade.
There was a quick succession of two CVEs announced in libraries used by Supermarket just after v3.1.61 was promoted to stable. 3.1.62 and 3.1.63 were built and promoted to address them. The combined set of changes of the three most recent stable versions are listed below.