Socket.IO
Socket.IO — Bidirectional and low-latency communication for every platform
Product intelligence for socket.io. Updated from 9 sources. Is this your product?
Changelog
12 changes tracked · 3 sources · Ships every ~4 days
No updates detected in 25 days. Previous cadence: every 4 days.
Socket.IO v4.8.3 was released on March 18, 2026; Socket.IO v4.8.3 fixed issue where calling io.close() on a stopped server would
Socket.IO parser v4.2.6 was released on March 17, 2026; Socket.IO parser v4.2.6 added limit to number of binary attachments
Engine.IO v6.6.6 was released on March 10, 2026; Engine.IO v6.6.6 added @types/ws as dependency
Socket.IO v4.8.0 was released on September 21, 2024; Socket.IO v4.8.0 added custom transport implementations feature; Socket.IO v4.8.0 added tryAllTransports option (+2 more)
Socket.IO v4.7.0 added support for WebTransport
Socket.IO v4.6.0 introduced Connection state recovery
Socket.IO v4.4.0 added support for uWebSockets.js
Socket.IO v4.1.0 introduced serverSideEmit() function
Socket.IO v4 was released in March 2021
Socket.IO v3 was released in November 2020
Socket.IO v2 was released in May 2017
Data Quality
11 of 14 intelligence sources gathered
Product Reference
Competitive Landscape
Where Socket.IO sits in the market
Is this your product?
Data quality: 91%. 2 data gaps detected.
Claiming is free. Payment never buys placement — data quality determines visibility.