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by mikewarot 725 days ago
An existing code base, even one as recent as 4 years old, gives you something to test against. You haven't specified why you have to abandon it, especially as it's practically brand new.

If you have to migrate to a new platform, try to get buy in from everyone that you're going to only match feature for feature, until the old one is turned off for the last time.

You can make decisions with upgrades in mind, but just push to get it moved completely first. You don't want to end up paying technical debt in 2 places forever.