Due to the upcoming HardFork on block16500(difficulty algo updated to prevent 51% attacks and timestamp manipulation-many thanks
21 Jun 2018, 09:18
Due to the upcoming HardFork on block16500(difficulty algo updated to prevent 51% attacks and timestamp manipulation-many thanks @masaricurrency) you are requested to update your GUI wallets and/or binaries from the official #sumokoin site or $sumo github