Scratch does not run on flash. It won’t be affected.

Does Scratch 3.0 use Flash?

Scratch 3.0 is the third and current major version of Scratch. … It features a new, modern look and design, and fixed many bugs present in Scratch 2.0. It is compatible with many mobile devices and does not require Flash, enabling users to create from a wider range of locations.

Did scratch shut down?

6-8 — Both the Scratch 1.4 website and 2.0 beta website were shut down for the transition to Scratch 2.0.