Hydra 1.2 May 2026

If you are on a legacy pipeline of 10,000+ lines of configs, pin your version to hydra-core==1.1.2 for now, but plan the migration. The deprecation of hydra.main means you will need to refactor your entry point logic.

pip install hydra-core --upgrade Happy composing! Let us know in the comments if you have found the 1.2 resolver syntax tricky—I will be writing a deep dive on that next week. hydra 1.2

This moves Hydra away from rigid inheritance trees (which often broke) toward a more flexible composition model. You can now write: If you are on a legacy pipeline of

Version 1.2 introduces for certain resolver functions. Early benchmarks show a 40% reduction in instantiation time for large config suites. 5. Deprecation of hydra.main This is the breaking change you need to watch for. The decorator @hydra.main() has been a staple since day one. It now throws a DeprecationWarning . In Hydra 2.0 (planned for Q3 2026), it will be removed. Let us know in the comments if you have found the 1

April 14, 2026 Category: Developer Tools / MLOps