https://devblogs.microsoft.com/typescript/announcing-typescript-5-9-beta/

Please read through our TypeScript version policy: typescript-eslint.io/users/dependency-versions#typescript

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

We will need to regenerate our types within scope-manager.

Support for import defer

This will require AST changes.

Other changes with no impact to us

• Minimal and Updated tsc --init
• Support for --module node20
• Summary Descriptions in DOM APIs
• Expandable Hovers (Preview)
• Configurable Maximum Hover Length
• Cache Instantiations on Mappers
• Avoiding Closure Creation in fileOrDirectoryExistsUsingSource