Additional Resources
You have made it through the core of the documentation. This section collects reference material that does not belong to any one feature area but is useful to keep close at hand.
What’s here
Section titled “What’s here”- Migrating from v3 — a practical guide to the API and packaging changes between Effect v3 and v4, with a rename map you can scan while porting code.
- Glossary — concise definitions of the vocabulary that shows up throughout these docs: fibers, scopes, layers, causes, and more.
Where to go from here
Section titled “Where to go from here”If you came for a specific capability, jump straight to its section:
- Building blocks: Effect Essentials, Error Management, Services & Layers.
- Runtime behaviour: Concurrency, Resource Management, Scheduling, Runtime.
- Data and modelling: Schema, Data Types, Pattern Matching.
- Building applications: HTTP API, RPC, CLI, SQL, AI, Cluster.
- Operating applications: Observability, Configuration, Testing.
If you are writing Effect day to day, the Code Style guide captures the conventions used throughout these examples.