https://devblogs.microsoft.com/typescript/announcing-typescript-4-8-rc/

This issue is just to track all of the new features and their implementation state in this project.
As with all releases, we will not necessarily to support all features until closer to the full release when everything the features are stabilised.

Please be patient.

🔲lib.d.ts Updates (no PR)

We will need to regenerate our types withinscope-manager.

Other changes with no impact to us

• Improved Intersection Reduction, Union Compatibility, and Narrowing
• Improved Inference for infer Types in Template String Types
• --build,--watch, and--incremental Performance Improvements
• Errors When Comparing Object and Array Literals
• Improved Inference from Binding Patterns
• File-Watching Fixes (Especially Acrossgit checkouts)
• Find-All-References Performance Improvements
• Exclude Specific Files from Auto-Imports
• Breaking Changes:
  • Unconstrained Generics No Longer Assignable to{}
  • Types Cannot Be Imported/Exported in JavaScript Files
  • Binding Patterns Do Not Directly Contribute to Inference Candidates