On the official site of Corn (@cornkry), this note covers Solana Foundation, web3.js.
The Solana Foundation said on Oct. 8, 2026 that version 3 of the Solana web3.js JavaScript library is ready for general use. NFA.
Release Timeline
The changelog from the Solana Foundation marks Oct. 8, 2026 as the date when version 3 went live for general use. A later set of notes on Oct. 15, 2026 added further updates to the package. The plan to shift the package to npm's latest tag sits on Oct. 19, 2026.
How Developers Install It
Developers name version 3 explicitly when running the install command for now. The package is expected to become the default install at a later point. This step keeps the process clear while the change settles in.
Wallet Features Added
Version 3 adds a Solana wallet-adapter package. That package includes Sign In With Solana support along with standalone signing. The additions give developers direct ways to handle wallet connections without extra layers.
Native Kit Work
The internals in version 3 work with Solana Kit from the start. A PublicKey from the library works with Codama-generated clients. This connection removes the need for extra conversion steps in many setups.
Fixes In The Package
The notes list fixes that cover confirmation steps, durable nonces, websocket subscriptions, and RPC response checks. These changes tighten how the library handles common tasks. Each area received direct attention in the release.
Follow-Up Changes
A release on Oct. 15, 2026 turns the Connection object into a Kit client. The same update lets a Connection pass straight to Anchor and Codama-generated program clients. No second RPC call is required for those flows.
Rent And Nonce Notes
Program-client helpers that need rent can now take the Connection directly. The docs also flag a planned deprecation of the durable nonce APIs. These points appear in the Oct. 15 notes as clear next steps.
What Holders Get
A holder of projects that rely on the library sees improved wallet flows and simpler client passes. The Anchor link lets programs use one Connection across tools. The overall result is fewer moving parts when building or updating clients.
Daily Use Impact
Developers who pull the library into daily work can name the version and test the new wallet and signing paths right away. The planned default move on Oct. 19, 2026 will make the switch automatic for most installs. The fixes on confirmation and subscriptions reduce common error points that showed up before.
The changes stay focused on the library itself. Each update listed comes from the official changelog and release notes dated Oct. 8 and Oct. 15, 2026.