📣 What's Important This Week
Key updates from the Arbitrum ecosystem and Foundation
Robinhood Chain Continues to Back the Next Generation of Founders at Open House Singapore
One of the fastest growing chains is backing the next generation of founders. Robinhood Chain has committed $1M in funding to early-stage teams building through Arbitrum's Open House. Teams looking to bring a finance idea onchain can apply to our upcoming 3-week online Buildathon.
➡️ Register for the Online Buildathon to Compete for $115K in Prizes
ArbOS Elara Upgrade is Now Live on the Arbitrum Platform
Following approval through Arbitrum governance, the ArbOS Elara upgrade is now live on the Arbitrum Platform, bringing new capabilities to dedicated blockchains and important improvements to Arbitrum One.
ZK proving is Coming to Arbitrum One & Dedicated Blockchains
This paves the way for private Arbitrum chains and allows for faster Ethereum withdrawals (from days to hours). Thanks to SuccinctLabs and Offchain, Arbitrum chains will be able to implement this new technology soon.
📚 Learn & Build
New learning drops and hands-on resources from across the Arbitrum ecosystem
What Ethereum Developers Need To Know Before Deploying to Arbitrum
The Arbitrum Platform offers a familiar experience for Ethereum devs, but there are a few differences that can impact how contracts behave. From transaction ordering to dynamic pricing, @0xjesstech breaks down what they should know before deploying to Arbitrum One.
Prototype to Production Fireside with Openzeppelin
AI Writes More Code Now. So What Becomes the Developer's Job?
🛠️ Dev Tooling & Infra
Updates to SDKs, CLIs, and developer workflows across the stack
What Does Multidimensional Gas Pricing Change for Developers?
Nitro v3.11.3 is Now Fully Released
This update improves validator stability, more accurate transaction filtering, and clearer debugging tools through better RPC error messages, tracing, and logging for filtered transactions. The source code is published on GitHub and the standard Docker images are live on Docker Hub.
🗓️ Events
Workshops, builder and founder programs, and ecosystem meetups to watch
Open House Singapore online Buildathon kicks off September 14
Open House Singapore will kick off with a 3-week, online Buildathon on September 14, designed to help founders refine their direction and iterate towards an MVP. Teams that are looking to bring novel financial products to the Arbitrum Platform are welcome to apply today.
➡️ Register for the online Buildathon
🧵 Forum & Community Discussions
What builders are debating and proposing this week
Arbitrum Security Program
The Arbitrum Foundation proposes to continue and evolve the Arbitrum Audit Program (AAP) - launched on 1 August 2025 with a one-year mandate into a broader Arbitrum Security Program (ASP), running for a further 12 months on a rolling-application basis.
[CONSTITUTIONAL] AIP: Authorize Priority Gas Auctions and Establish the Fast Feed
This AIP proposes to combine two separate actions into a single on-chain vote for the ArbitrumDAO to consider: transitioning Arbitrum One's ordering policy from Timeboost to Priority Gas Auctions and sunsetting Timeboost on Arbitrum Nova; and establishing the Fast Feed, a paid and authenticated data streaming product for Arbitrum One.
That’s all from Builder’s Block #024. Stay Ahead of What's Next!
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