According to @wallisi, Linea upgraded to Fusaka at the same time as Ethereum, with the post referencing an official @LineaBuild status on X as the source (source: @wallisi citing @LineaBuild status). For traders, the verified synchronized timing offers a clear event timestamp to track ETH and Linea L2 activity around the upgrade, while the post provides no additional technical details or token incentives beyond the timing note (source: @wallisi).