The Starknet mainnet has officially upgraded to version 0.12.1.

According to official sources, the Starknet mainnet has been upgraded to version 0.12.1 on August 21, as reported by BlockBeats. This upgrade marks the end of the "quantum leap" of the Starknet mainnet. Previously, Starknet stated that invalid transactions wasted valuable sorter resources without paying fees. This upgrade adds a verification stage before sorting to filter out invalid transactions as early as possible. Failed transactions will have a REVERTED status and be included in the block, with fees paid.