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Fulcrum 2.0 has been released! I synced a new DB from scratch, here's my experience: It took about 2.5 days to sync the new Fulcrum on a laptop (Ryzen 7 5700U, db_mem 8000 GiB). The v2 DB is a little larger than v1: 176 GiB against 166 GiB. To test performance, I repeteadly queried a large BTC address (1HckjUpRGcrrRAtFaaCAUaGjsPx9oYmLaZ) for balance and history and got these results: v1 get_balance: [335, 416] range, avg 378 ms; v2 get_balance: [348, 355] range, avg 352 ms; v1 get_history: [32676, 33723] range, avg 33214 ms; v2 get_history: [23208, 23947] range, avg 23508 ms; Hopefully someone will come up with better benchmarks, it was a real PITA to measure time due to netcat/socat keeping the connection alive. Now, the best part: I left a script running all day, killing -9 Fulcrum and restarting it for a total of 95 kills. The DB was not corrupted. Check the release notes for instructions on how to upgrade from v1: https://github.com/cculianu/Fulcrum/releases/tag/v2.0.0