mswjs/msw v2.13.0

on GitHub

v2.13.0 (2026-04-06)

Features

• use the network source architecture (defineNetwork) (#2650) (2b73790) @kettanaito @felmonon
• handlers are now grouped internally by kind, making handler lookup a O(1) operation.
• handlers filtering no longer uses an instanceof check. Instead, the kind property of the handler is used.

Bug fixes

• fix an issue where a WebSocket connection would be logged in the console even when there are no matching event handlers for it.