Can’t speak for shopify but as someone who helps maintain a fairly large react native app there is not really the option to stay on the old versions of things, react native only supports 2 major versions back, and downstream react native dependencies tend to do the same. If you don’t upgrade you are likely to find bugs when new OS versions come out that are gonna make your app close to unusable. There are benefits to the new architecture, better performance is the big one.
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Can’t speak for shopify but as someone who helps maintain a fairly large react native app there is not really the option to stay on the old versions of things, react native only supports 2 major versions back, and downstream react native dependencies tend to do the same. If you don’t upgrade you are likely to find bugs when new OS versions come out that are gonna make your app close to unusable. There are benefits to the new architecture, better performance is the big one.