Arbitrum said in blog post that ArbOS Dia is live, targeting smoother L2 gas pricing and higher, more predictable throughput on Arbitrum One and Nova. The team said the release is designed to be noticeable in the moments that usually feel the messiest, like demand surges.
Dia adjusts Arbitrum One’s pricing model with multiple gas targets across longer adjustment windows and raises the default minimum L2 base fee from 0.01 gwei to 0.02 gwei, which Arbitrum said should blunt fee spikes and price out some spam-style bot activity. Operationally, Dia tracks gas usage across multiple resource types and lets the final transaction in a block use up to MaxTxGasLimit even if it nudges beyond the prior MaxBlockGasLimit. For builders, Dia aligns secp256r1 support with the version planned for Ethereum post-Fusaka, supporting passkey-style authentication and biometrics-first signing.
Arbitrum said dynamic, constraint-based pricing is not enabled yet and will arrive in a later ArbOS upgrade after benchmarking and testing. Dia also adds Native Token Mint/Burn for custom Arbitrum chains to broaden native gas token options via trusted bridge providers, while noting there are no plans to enable it on Arbitrum One. Next up, watch whether gas behavior becomes less “spiky” as the new parameters settle.
Source: Arbitrum.
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