Cardano’s reboot involves a series of updates to major components of the Cardano network, including its node, explorer and wallet
Source: https://cointelegraph.com/news/cardanos-byron-reboot-goes-live-paving-way-to-shelley-mainnet
Cardano’s Byron Reboot Goes Live, Paving Way to Shelley Mainnet
April 1, 2020
CoinTelegraph