Thanks kgautam for the reply. You said Avro serialized data has no schema saved in the file. This is what I read "Schema is stored along with the Avro data in a file." So basically, if I am using a Avro writer that uses old schema. This same old writer should be able to handle records coming in with new schema (as long as we follow the rules) until I update the writer to use the new schema. If later I update the writer to use the new schema will it be able to give me all the data with new schema? Again all the data with new and old schema are in the same file. I want to understand if I will loose any new fields that I add while writing the data with old schema. Thanks ... View more