- Refactor account subtype enums for greater specificity. This has no changes to the API but is a major semver change for Python, Node, Go, and Java client library interfaces to the AccountSubtype object within account filtering contexts in `/link/token/create`. The `AccountSubtype` namespace in this context is now prefixed with the AccountType. (Example for Node: Old: `AccountSubtype.checking` New: `DepositoryAccountSubtype.checking`)