Effect-TS shipped Effect 4.0.1 on October 5 and 4.0.2 today, two patch releases that fix bugs across the runtime, platform, integration packages and cluster, and add missing @stability unstable and @s…
Effect-TS, a TypeScript library built around typed errors and declarative effect handling, is being positioned as a strong fit for AI agent development, according to a first-person argument that cites…
Effect shipped a breaking API rename in its v4 release candidate, changing `Schema.transformOrFail` to `Schema.transformEffect`, as part of a week of release-candidate hardening that also declared `Re…
Effect v4 beta's July 2026 updates moved development to the canonical Effect-TS/effect repository, added native Deno support, a new Graph module, and overhauled Schedule and Cron APIs. The beta also i…
Effect v4 Beta entered its first full week on the canonical Effect-TS/effect repository, with a thorough Cron hardening pass, fiber runtime fixes, new core APIs, and continued AI and HTTP improvements…
A developer has compiled a list of recommended Effect repositories for use in opencode references, including canonical sources like Effect-TS/effect and community projects such as lucas-barake/effect-…
This file provides a minimal test wrapper for Bun's native test runner, implementing `it.effect()` and `it.scoped()` methods that allow testing Effect-TS effects directly with `bun test`. The wrapper …