TypeScript 7.0 release candidate

Category: Languages
Status: confirmed
Sources: TypeScript blog
Summary: See the Top stories item. The Go-port compiler reaches RC at roughly 10 times the speed of 6.0, with config-default breaking changes (rootDir, types, removed es5 and node10 resolution).
Why it matters: It is the largest TypeScript toolchain change in years and sets near-term migration work.