After updating from 9.2.2 to 9.4.4 type-checking is not performed anymore in runtime

[alexeymarkov]

I have a custom server configured.
In 9.2.2 when I start a project from vscode using "node server.js" and then change a ts/tsx file it goes compiled and type checked.
In 9.4.4 type-checking is not executed although I see tslint errors in vscode.

In 9.2.2 I see in the output
bundled successfully, waiting for typecheck results...
in 9.4.4 I do not see the line

Do I need to adjust something in next/babel configuration?

[rafaelalmeidatk]

Next.js doesn't type-check the code during development anymore since it slows down the build (#12735 (comment)). The editor will warn you about any type errors and you can manually check the types for the entire project running tsc.

Type-checking is still performed during next build.