Ethereum L2 project Taiko has announced that the Hekla testnet is now open to the public, supporting EIP-4844 and the mainnet is expected to launch soon.New features: No longer need an L1 node; enable EIP-4844 DA block; adjust L2 block gas issuance and upper limit; fine-tune EIP1559 configuration; improve guardian proof infrastructure; support two-step claiming L2 to L1 bridging tokens. In addition, Hekla uses the same competition-based Rollup (BCR) mechanism as Katla. Taiko will launch on the mainnet using the BCR architecture. Katla will be deprecated on May 10.