For instance, in App Engine, Cloud Run and K8, it is possible to split the traffic between multiple versions especially if you want to perform A/B testing or do a canary release.. So, i was wondering if firebase hosting also has this same feature or how can it be done with firebase hosting.
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You could consider using feature flags etc within your app and do the a/b testing using one deployed version – Va5ili5 Dec 23 '21 at 09:48
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Firebase Hosting currently has no formal "canary" feature, though you could certainly file that as a feature request with Firebase support.
You can, however, test locally with the emulator, publish to a temporary preview channel, the deploy from that preview when you're satisfied with it.

Doug Stevenson
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