Base's mainnet experienced an outage early on June 26 due to an anomalous block disrupting block production. The issue was identified at 00:27 Beijing time, with the team confirming that all funds remained secure. By 1:53, block ordering was restored, and internal nodes were syncing normally, though validator nodes required a restart to resume synchronization. By 3:22, block production had returned to normal, and applications and infrastructure were gradually coming back online. The team has identified the root cause and plans to release a full post-mortem report. The outage coincided with the scheduled Beryl upgrade, but it was confirmed to be unrelated to the planned maintenance.