v0.10.3 6.0.12

Name: emscripten
Author: emscripten-core

medium risk

emscripten-core/emscriptenOct 8, 2026 → Oct 8, 20260 days between releases

What's New

Emscripten 6.0.12 adds epoll listeners and deprecates memory instance functions.

Breaking Changes

Deprecated `getInheritedInstanceCount` and `getLiveInheritedInstances` functions

New Features

New `<emscripten/epoll.h>` API for main-thread readiness callbacks

Improvements

`MAXIMUM_MEMORY` is now honored with `IMPORTED_MEMORY` even without `ALLOW_MEMORY_GROWTH`

Upgrade Notes

Migrate away from deprecated `getInheritedInstanceCount` and `getLiveInheritedInstances` functions. Ensure `IMPORTED_MEMORY` respects `MAXIMUM_MEMORY` to avoid warnings.

The Two Releases

v0.10.3

Oct 8, 2026· 13 days ago

This release focuses on stability improvements for coding agents, Hermes integration, and memory management. It introduces the TraeCode harness, enhances tag filtering capabilities, and refactors the memories store for better isolation.

Full release notes

6.0.12

Oct 8, 2026· 13 days ago

Updates memory handling to respect maximum limits and introduces new epoll-based event listeners.

Full release notes