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feature-table.md

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Cardano Features

Date Phase Era Slot Number Epoch Number Protocol Version Ledger Protocol Consensus Mechanism Notes
2017/09 Byron Byron 0 0 0,0 - Ouroboros Classic
2020/02 Byron Byron 3801600 176 1,0 - Ouroboros BFT
2020/07 Shelley Shelley 4492800 208 2,0 TPraos Ouroboros Praos
2020/12 Goguen Allegra 16588800 236 3,0 TPraos Ouroboros Praos
2021/03 Goguen Mary 23068800 251 4,0 TPraos Ouroboros Praos
2021/09 Goguen Alonzo 39916975 290 5,0 TPraos Ouroboros Praos
2021/10 Goguen Alonzo 43372972 298 6,0 TPraos Ouroboros Praos intra-era hardfork
2022/09 Goguen Babbage 72316896 365 7,0 Praos Ouroboros Praos Vasil HF
2023/02 Goguen Babbage 84844885 394 8,0 Praos Ouroboros Praos Valentine HF
2024/09 Voltaire Conway 133660855 507 9,0 Praos Ouroboros Genesis/Praos Chang HF