state syncadvancedProduct Hunt maker Q&A stream (repeated pricing/pain questions)MAX
Schema Evolution Breaking In-Flight Sync Payloads : Sync Schema Evolution Across Client Generations
KotlinProtobufPostgreSQLSchema Registry
Problem Breakdown
The migration defect is treating synced persistent state like request/response API traffic: synced records are read and written by every client generation simultaneously, so schema evolution is a compatibility matrix problem, not a versioned-endpoint problem. Sync systems ship payloads between client versions and serve…
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