chore: changelog Rivet v2.0 (#2870)

Author: NicholasKissel

site/src/posts/2025-09-04-rivet-v2-launch/image.png

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+export const author = "nathan-flurry"
+export const published = "2025-09-04"
+export const category = "changelog"
+export const keywords = ["v2", "major-release", "open-source", "BYO-database", "multi-region"]
+
+# Rivet v2.0 Launch
+
+Today, we are releasing Rivet v2.0.
+
+This release is a complete rework that makes it simpler to build stateful workloads anywhere you can run NodeJS or Bun.
+
+## Major Changes
+
+### Product Layout
+
+- **RivetKit** remains the same as the library for building stateful workloads, with Rivet Actors now being the core primitive.
+- **Rivet Engine** remains the core of self-hosting and is used for orchestrating actors at scale.
+
+### BYO DB (Bring Your Own Database)
+
+Rivet v2.0 decouples storage from the platform. The Rivet Engine now supports:
+- **PostgreSQL**: For production deployments
+- **FoundationDB**: For enterprise-scale distributed systems
+- **Filesystem**: For single-node deployments
+
+Actors themselves can use File System or Redis drivers, with more storage options coming soon.
+
+### Deployment Flexibility
+
+Run Rivet in any environment:
+- **Local development**: Full functionality on your machine
+- **On-premises**: Deploy within your own infrastructure
+- **Cloud providers**: Compatible with AWS, Railway, GCP, Azure, and others
+
+### Multi-Region Support
+
+v2.0 introduces multi-region architecture for the Rivet Engine:
+- Deploy across multiple geographic locations
+- Built for global scale
+
+### Open Source (Apache 2.0)
+
+Rivet v2.0 is open source under the Apache 2.0 license.
+
+### Library Architecture
+
+Rivet is now distributed as a library rather than a platform service:
+- No external service dependencies
+- No vendor lock-in
+- Standard npm package installation
+- Integrates directly into your application code
+
+## Documentation
+
+- [Actor Quickstart](https://rivet.gg/docs/actors/quickstart)
+- [Self-Hosting Guide](https://rivet.gg/docs/self-hosting)
+
+## Support
+
+- [GitHub Issues](https://github.com/rivet-gg/rivet/issues)
+- [Discord](https://rivet.gg/discord)