Magiccfg V1.3 Apr 2026

Happy configuring 🧙‍♂️✨

MagicCFG v1.3: Smarter Configuration, Less Boilerplate

If you’ve ever spent hours debugging a yaml indentation error or writing the same environment variable loading logic for the fifth time, MagicCFG is here to help. Version 1.3 focuses on three things: , performance , and reducing boilerplate . What’s New in v1.3? 1. Dot Notation for Nested Keys (Finally!) Access nested configuration values without chaining .get() methods or catching KeyError exceptions.

go get github.com/magiccfg/magiccfg@v1.3 magiccfg v1.3

April 18, 2026

Before:

# schema.yaml database: host: string port: number(min=1024, max=65535) If a value is missing or invalid, you’ll get a clear error before your app starts — no more runtime surprises. We rewrote the internal merge engine in Rust (behind a Python binding) while keeping the API identical. Large configs with deep inheritance now load in half the time. For microservices and serverless environments, this means faster cold starts. 4. Environment Variable Interpolation You can now reference environment variables directly inside any config file: Happy configuring 🧙‍♂️✨ MagicCFG v1

3 minutes

api: key: ${API_KEY} url: "https://${ENV}.example.com" MagicCFG resolves these at load time, with clear warnings for missing variables. Python (PyPI):

pip install magiccfg==1.3 Or visit magiccfg.dev for full documentation. We rewrote the internal merge engine in Rust

pip install --upgrade magiccfg

— The MagicCFG Team Tags: #release #magiccfg #v1.3 #devtools #configuration

db_host = config.dot("database.production.host") Better yet, dot() supports default fallbacks and will never throw an attribute error on missing paths. MagicCFG v1.3 introduces optional JSON Schema support. Define your expected config shape once, and let MagicCFG validate types, required fields, and patterns on load.