# Node.js 26.11.0 released with crypto and buffer improvements

> **Key takeaway:** Node.js 26.11.0 introduces significant updates to the crypto module, new Buffer methods, and upgraded dependencies including OpenSSL 3.5.9 and npm 11.20.0.

**Published:** 2026-10-07T14:45:09+00:00 
**Source:** Node.js Official Releases 
**Category:** software-engineering 
**Canonical URL:** https://fosswire.org/news/nodejs-26110-released-with-crypto-and-buffer-improvements.html 

## Summary
The Node.js 26.11.0 release brings a wide range of updates to the runtime, focusing on security, performance, and API stability. Key changes include extensive refinements to the crypto module, new utility methods for Buffers, and the promotion of Alpine Linux to tier 2 support. Additionally, several core dependencies such as OpenSSL, V8, and npm have been updated to their latest versions.

## Technical highlights in Node.js 26.11.0
- **Crypto module**: Extensive updates including support for backend cSHAKE and KMAC, improved random synchronous number generation, and enhanced RSA/AES-GCM validation.
- **Buffer API**: Added `isLatin1()` and `Buffer.stringLength()` methods.
- **HTTP/2**: Introduced the `connectionWindowSize` option.
- **Performance Hooks**: Added `histogram.diff()` and `histogram.snapshot()` methods, and fixed resolution issues in `monitorEventLoopDelay()`.
- **Dependency updates**: Upgraded to **OpenSSL 3.5.9**, **npm 11.20.0**, **undici 8.11.2**, and **LIEF 1.0.0**.

## Why it matters
The update improves security posture through updated cryptographic primitives and dependency patches, while expanding platform compatibility by elevating Alpine Linux support.