Hydra 1.2 -

# 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)

Last week, the team released , and it is not just a minor patch—it changes how we think about configuration composition. hydra 1.2

If you have ever tried to manage a massive Python configuration file full of nested dictionaries, you know the pain. That is why the open-source community fell in love with (from Facebook Research). It allows you to compose dynamic configurations from multiple files and override anything from the command line. # Old (Hydra 1

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. That is why the open-source community fell in

Navigating the Labyrinth: What’s New in Hydra 1.2

April 14, 2026 Category: Developer Tools / MLOps