Changelog

Stay in touch with new updates and improvements in the Alchemy ecosystem.
December 18, 2025

Rollups

  • Mythical Games launching their first set of in-game items on Mythos Mainnet, using the rollup to power their NFT marketplace for popular mobile games like NFL Rivals.
  • World launched a redesigned World App with new features including the ability to receive paychecks directly in the app and pay merchants using a Visa card that debits from World App accounts.
  • XMTP launched encrypted messaging on the World App, powering World Chat.
  • XMTP launched on Base App, bringing encrypted messaging capabilities to the platform.

Node

Upgrades

December 11, 2025
Legacy endpoint shutdown notice

We will be shutting down our legacy RPC endpoint alchemyapi.io on January 31, 2026. This endpoint was originally deprecated in 2021, and you are likely not impacted by this change. However, if your app is still making RPC requests to this legacy endpoint, please migrate to our current endpoint, g.alchemy.com, which offers significant latency improvements while maintaining the same authentication model and API functionality. No other changes are required beyond updating the endpoint URL in your calls.

If you are using the Ethers.js package, please ensure you are running v6.16.0 or later, which routes requests through the current g.alchemy.com domain.

After the shutdown date, all requests to alchemyapi.io will return HTTP 410 – Gone, and no Compute Units (CUs) will be billed for calls made to the deprecated endpoint.

Node

Updates

Upgrades

  • Bsc Mainnet: Erigon v1.4.3, Geth v1.6.4
  • Celestia Mainnet: Celestia v0.28.4
  • Polygon Amoy: Bor v2.5.3, Heimdall v0.5.2
  • Polygon Mainnet: Heimdall v0.5.2, Bor v2.5.3
  • Scroll Mainnet: Scroll scroll-v5.10.0
  • Scroll Sepolia: Scroll scroll-v5.10.0
  • Story Mainnet: Geth v1.1.1, Story v1.4.1
December 4, 2025

Developer Experience

Docs

  • Shipped a comprehensive revamp of the Solana documentation with improved navigation, updated content, and new developer tools.
  • Completely refreshed the Solana Quickstart Guide with a streamlined onboarding flow, tested working scripts for sending requests, creating and funding wallets, and a full breakdown of all supported Solana methods organized by category.
  • Published two brand-new tutorials with fresh, working code repositories that walk developers through building live, functioning sample apps—replacing the previous outdated guides.
  • Introduced a new Compute Unit (CU) Calculator to help developers understand how many CUs their integrated methods require and plan their usage accordingly.
  • Updated the Solana FAQ with a methods-by-category breakdown, making it easier to discover what’s supported and what you can build with each method.

Rollups

  • Launched Mythos Mainnet for Mythical Games, our first OP Stack Layer 3 rollup. Mythical Games will use this rollup to power in-game NFT items and their marketplace for popular mobile games like NFL Rivals.
  • Shipped support for the Fusaka activation on Ethereum Mainnet, enabling rollups with Ethereum Mainnet as the parent chain to continue sequencing after the network upgrade.

Node

Upgrades

November 20, 2025

Developer Experience

Dashboard

  • Redesigned the app endpoints page to make it easier to configure networks for your apps. You can now enable/disable all networks from the same screen with improved filtering (mainnet/testnet), alphabetical sorting and quicker access to WebSocket URLs.

Docs

  • Revamped landing pages for API overview, Node, Chains, Data, and Rollups sections with visual cards and icons for easier navigation and better content organization.
  • Reorganized the Chains section by consolidating all chain-related quickstarts, FAQs, and APIs into a dedicated tab for a cleaner and more intuitive docs experience.

Node

Upgrades

November 13, 2025

Developer Experience

  • Extracted and moved all the chain related docs (quickstarts, faqs, API docs) from the “Node API” tab to its own tab called “Chains” for better organization & cleaner docs experience.
  • Added quickstart, FAQ and API docs for the Tron chain.

Rollups

  • Launched WorldL3 Devnet, a Layer 3 rollup that settles on World Chain. This testing environment enables World Chain partners to build and test L3 solutions while leveraging World Chain’s ecosystem tooling, including on-ramp services. Mythical Games is the first partner deploying on this rollup.

Node

Upgrades

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 Chain 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