npx wrangler versions deploy
npx wrangler versions deploy [<version-id>@<percent> ...]
Risk: Careful
What it does
Splits traffic between versions, like 5% new and 95% old.
When to use it
To run a canary: move users to the new version step by step.
Example
$ npx wrangler versions deployAsks which versions get which share of traffic.
Learn it in: Recreate, rolling, blue/green, canary · Official docs