# Temporal Ruby SDK Reaches General Availability with Rust Core and Deterministic Fiber Scheduler

DevFeed: [Temporal Ruby SDK Reaches General Availability with Rust Core and Deterministic Fiber Scheduler](<https://devfeed.tech/articles/temporal-ruby-crash-proof-fibers-36030.md>)

Original publisher: [Read original article](<https://temporal.io/blog/temporal-ruby-crash-proof-fibers>)

Author: Chad Retz

Published: 2025-10-16T00:00:00Z

Content type: article

Language: en

Sources: [Temporal Blog](<https://devfeed.tech/sources/temporal-blog.md>)

Topics: [Ruby](<https://devfeed.tech/topics/ruby.md>), [SDKs](<https://devfeed.tech/topics/sdks.md>), [Rust](<https://devfeed.tech/topics/rust.md>), [Programming](<https://devfeed.tech/topics/programming.md>), [cancellation](<https://devfeed.tech/topics/cancellation.md>), [Code](<https://devfeed.tech/topics/code.md>), [Open Source](<https://devfeed.tech/topics/open-source.md>)

Tags: [announcements](<https://devfeed.tech/tags/announcements.md>), [asynchronous](<https://devfeed.tech/tags/asynchronous.md>), [cancellation](<https://devfeed.tech/tags/cancellation.md>), [fiber](<https://devfeed.tech/tags/fiber.md>), [guardrails](<https://devfeed.tech/tags/guardrails.md>), [open-source](<https://devfeed.tech/tags/open-source.md>), [ruby](<https://devfeed.tech/tags/ruby.md>), [rust](<https://devfeed.tech/tags/rust.md>), [scheduler](<https://devfeed.tech/tags/scheduler.md>), [sdk](<https://devfeed.tech/tags/sdk.md>), [workflows](<https://devfeed.tech/tags/workflows.md>)

## AI overview

Temporal Ruby is now generally available, providing Ruby developers with a native-feeling SDK for building durable software and Workflows. The article introduces its programming model and demonstrates Activities, deterministic fibers, durable timers, cancellation, and updates, while also discussing the Rust-powered implementation and execution guardrails.

## Source excerpt

Temporal Ruby SDK is GA. Build durable Ruby Workflows with native APIs, a Rust-powered core, a deterministic fiber scheduler, and guardrails for safe execution.