Today we’re excited to announce the release of TypeScript 5.1! If you’re not yet familiar with TypeScript, it’s a language that builds on JavaScript by adding constructs called types. These types can describe some details about our program, and can be checked by TypeScript before they’re compiled away in order to catch possible typos,

For me, the biggest excitement is around "Easier Implicit Returns for undefined-Returning Functions". It's nice not to have to insert a return undefined; when that's the implicit behavior.