Airbyte, a data sync platform, has introduced checkpointing to ensure uninterrupted data flow during transient failures. Checkpointing allows the platform to resume any incremental sync from where it left off in the previous attempt. Currently, all sources that support incremental syncs and cloud data warehouse destinations such as Snowflake, BigQuery, and Redshift are checkpointable. The Airbyte Protocol enables this process by using state messages to confirm when data is saved on the destination end. This feature allows for more efficient and reliable data movement, with additional features like deduplication to clean up data on the other side.