brief -
Arbitrum Launches Priority Gas Auctions
Arbitrum activates priority‑gas auctions, letting users attach a priority fee to individual transactions.
It's Thursday, September 24, 2026.
Arbitrum launches Priority Gas Auctions and Fast Feed on Arbitrum One. Alchemix V3 goes live on Base. Securitize tokenizes the ARK Venture Fund (ARKVX). And core developers advance 10 CFI‑status EIPs for Hegotá.
Arbitrum Launches Priority Gas Auctions
Arbitrum launched Priority Gas Auctions (PGA) and Fast Feed on Arbitrum One, replacing its Timeboost ordering policy with a standard priority-fee-based system for transaction ordering on the L2 network. PGA lets users and applications compete for earlier transaction execution by attaching a priority fee to individual transactions using standard EIP-1559 fee fields. Each 250ms block contains two 125ms PGA rounds, with transactions ordered by priority fee within each round.
Fast Feed is a paid data stream that gives subscribers access to ordered sequencer data in real time during block construction, rather than waiting for the completed block. Fast Feed is designed for searchers, propAMM operators, and latency-sensitive applications that need fast price updates. Fast Feed publishes data faster but does not affect transaction ordering. Priority fee revenue flows to the ArbitrumDAO treasury.
Alchemix Goes Live On Base
Alchemix, the self-repaying lending protocol that allows users to pay off loans from yield earned on their collateral, is now live on Base. It marks the first instance of Alchemix v3 outside Ethereum. On Base, users can deposit USDC into a curated basket of yield strategies with no lock-ups, borrow up to 90% of their deposit's value interest-free while their collateral keeps earning, or lock in fixed yield at the time of deposit.
Unlike interest-based lending, there are no repayment schedules or liquidations to manage since the loan repays itself over time from yield. The Base deployment is entirely siloed from Alchemix's existing positions. The market features a Base-specific alUSDb stablecoin as well as shorter redemption cycles designed to support the peg. Yield strategies route through Yearn, Gauntlet, and Morpho vaults curated by Steakhouse Financial, while USDC/alUSDb liquidity is live on Aerodrome.
10 EIPs Considered For Hegotá
Ethereum core developers advanced 10 Ethereum Improvement Proposals (EIPs) to Considered (CFI) status for Hegotá, the Ethereum upgrade after Glamsterdam: EIP-7979, EIP-8163 (a low-cost no-op on L1), EIP-7906, EIP-8250, EIP-8272, EIP-7668, EIP-8253, EIP-3298, EIP-8131, and EIP-8279. The proposals still need to be moved to scheduled to inclusion before the are scoped for the upgrade.
Separately, EIP-8304 moved to Declined for Inclusion (DFI) for Hegotá, though its author plans to continue the work independently. EIP-8368 and EIP-8372 remain at Proposed for Inclusion (PFI), pending at least 30 days of mainnet data after Glamsterdam ships. EIP-8360 (the TCREATE opcode proposal) was also deferred.
ARK Venture Fund (ARKVX) Tokenized
Securitize and ARK Invest launched a tokenized version of the ARK Venture Fund (ARKVX) on Ethereum, lowering the entry point for eligible investors. The fund is an SEC-registered closed-end interval fund managed by ARK, holding roughly 62% in private companies alongside public ones, with reported holdings including OpenAI, Anthropic, Stripe, Databricks, Tesla, SpaceX, Coinbase, and Tempus AI.
Each token is backed 1:1 by fund shares held in custody at BNY Mellon, and investors retain the same rights and the same quarterly liquidity as the traditional fund structure. Securitize supplies the onchain issuance and investor-experience infrastructure. ARK invested about $10 million in Securitize in October 2025.
Misc News
Tenderly case study on DeFi Saver integrating simulations. Polygon introduces stablecoin subscriptions. EthSystems joins the LF Decentralized Trust.
Disclaimer: Content is for informational and educational purposes only and does not constitute financial, investment, legal, or other professional advice. No representations or warranties are made as to accuracy, completeness, or timeliness. Use of this content is at your own risk, and you should consult a qualified professional before making decisions. No fiduciary or advisory relationship is created.
