Changelog

Stay in touch with new updates and improvements in the Alchemy ecosystem.
November 6, 2025

Node

  • Made Arc Testnet public
  • Released Aptos

Upgrades

October 30, 2025

Node

  • Corrected MegaETH testnet name and made it public

Upgrades

October 23, 2025

Rollups

Upgraded all Arbitrum Orbit rollups to ArbOS 40 Callisto. This adds features like EIP-7702 (account abstraction for EOAs) and EIP-2935 (historical block hashes).

Node

Upgrades

October 16, 2025

Developer Experience

Added Yellowstone gRPC API Reference & docs - a high-performance real-time Solana data streaming interface.

Rollups

Added Fusaka support on Sepolia - Fusaka is the upcoming Ethereum hard fork introducing key protocol upgrades. Supporting it on Sepolia ensures rollups remain compatible and secure as they post data to Ethereum. Mainnet rollout is expected in December.

Node

Upgrades

October 9, 2025

Developer Experience

Dashboard

  • Added multi-network method support in the developer sandbox.
  • Simplified Node RPC API setup for easier in-browser calls.
  • Redesigned Smart Wallets page for clearer login configuration, usage, and keys.
  • Introduced a Wallets quickstart in the app page.

Docs

Rollups

Optimized OP sequencer infrastructure, boosting throughput ~26% and extending disk headroom ~10×.

Node

Upgrades

October 2, 2025

Wallets

Shipped a recipe for programmatic wallet creation.

Rollups

  • Gensyn Mainnet launched, network focused on distributed AI training.
  • Scaled World to an 80M block gas limit, which at times surpasses Base’s throughput.

Node

Upgrades

September 25, 2025

Developer Experience

Dashboard

  • Fixes and reliability improvements to Webhooks
  • Automatic creation of smart wallets configs upon app creation for faster integration

Docs

Wallets

Shipped Server Wallets. Server wallets enable backend applications to programmatically control wallets using access keys, without requiring interactive authentication. This is perfect for automated systems, batch operations, or when you need to sign transactions from your backend.

Node

Upgrades

September 18, 2025

Developer Experience

Custom usage alerts are back.

  • Existing usage alerts have been re-enabled.
  • Pay-as-you-go and Enterprise developers are now able to create new usage alerts by setting usage thresholds in CUs or dollars.

Redesigned dashboard to streamline navigation between apps:

  • Select an app to see its metrics, services (node, wallets, rollups, webhooks, etc.), and settings.
  • Easily switch between apps with the new header.
  • All your account settings in one place: usage, billing, and more.

Wallets

Shipped a big docs update that includes:

  • Transactions docs overhaul.
    • New guides for sending parallel transactions and retrying stuck transactions.
    • Added and improved docs for swap API and transaction batching.
    • Enhanced Solana gas sponsorship docs.
  • Fixed and standardized broken links, slugs, and relative paths across wallets docs.

Node

Upgrades

September 11, 2025

Rollups

  • OP Stack: Batcher v1.15.0 on all chains — Upgraded all chains to the latest batcher with smoother, configurable sequencer throttling to better handle DA bottlenecks.

Developer Experience

  • Docs changes — Added docs for the following chains: Rise & WorldMobileChain. This includes quickstarts, faq guides and API pages.

Node

Upgrades

September 4, 2025

Wallets

  • AA-SDK: smarter clients & a new status hook — Refactored hooks to work directly with smart wallet clients, improved client tracking and error handling and added useWaitForCallsStatus for polling call statuses.
  • Wallets Docs — New React quickstart plus Tailwind/setup guides; clearer external wallet integration & customization flows; updated OpenID/OIDC & JWT docs;

Rollups

  • Arbitrum Orbit: BoLD support (rolling out) — Upgrading Arbitrum Orbit rollups to support BoLD, Arbitrum’s new dispute protocol that enables permissionless validation of chain state for stronger security and decentralization. Rollout has begun on select chains, with more to follow.
  • More resilient block building — Improvements to block building reliability when there are issues connecting to the Beacon Chain.

Developer Experience

  • Easier quickstart with Rollups in dashboard — Added a step-by-step quickstart guide to Rollups tab so you can get started with it easily.
  • Docs updates - Added missing chain docs (XMTP, tea, settlus, rise, ronin, frax, zora, degen, gensyn), deprecated Geist chain, added flashblocks quickstart guide to OP Mainnet & updated eth_getLogs blockrange limit for free tier.

Node Upgrades