Arbitrum Activates ArbOS 61 Elara Upgrade, Introducing Optional Compliance Filtering and Priority Fee Support for Dedicated Chains
According to The Defiant, Arbitrum officially activated the ArbOS 61 Elara upgrade on August 20, which was approved for deployment via an ArbitrumDAO governance vote. The core features of this upgrade include: introducing an optional protocol-level transaction filtering mechanism for Dedicated Chains, allowing chain owners to independently select external compliance service providers such as TRM Labs and Chainalysis to configure restricted address rules; the filter is disabled by default and does not affect existing Arbitrum One users; adding Priority Fee support, also disabled by default, with its activation on Arbitrum One still requiring a separate DAO constitutional vote; introducing the BaseFeeManager contract, which authorizes Offchain Labs to adjust the L2 minimum Gas fee within a DAO-approved range of 0.01 to 0.10 gwei over a two-year authorization period; additionally, the maximum code size limit for Stylus contracts has been increased from 24 KB to 96 KB, though this does not apply to Solidity contracts.
