Order of upgrading services matter?

Hello! I am upgrading from 1.8.2 to 1.9.1. I know the schema updates must be applied first, but does the order of releasing frontend, history, matching, workers matter? We have them each deployed separately. Or is ordering the deployments something that isn’t generally needed, and would be called out in release notes if it ever were?


there is no requirement on the order deployments of services
during deployment, we assume all 4 services (frontend / matching / history / worker (not the SDK)) to be deployed concurrently

if there will be a requirement that (e.g.) frontend must be deployed first, the requirement will appear on the release note

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I understand this to mean that concurrent rolling deployments of all four services will not be an issue (so current version and prior versions can interact, both within and across the four services). Thanks.