Navigating the Labyrinth: What’s New in Hydra 1.2
April 14, 2026 Category: Developer Tools / MLOps hydra 1.2
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. Navigating the Labyrinth: What’s New in Hydra 1
Last week, the team released , and it is not just a minor patch—it changes how we think about configuration composition. Deprecation of hydra
# Old (Hydra 1.1) @hydra.main(config_path="conf", config_name="config") def main(cfg): ... def main(): cfg = hydra.initialize_and_run(config_path="conf", config_name="config", task_function=my_task)
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.