hydra-ecosystem/hydra v1.4.0rc2

Hydra 1.4.0rc2

on GitHub

This release includes Hydra core and eight bundled plugins at 1.4.0rc2.
It is a prerelease.

For the full list of Hydra 1.4 changes, see the
1.4.0rc1 release notes.

Changes since 1.4.0rc1:

• Restore _group_ package overrides in the Defaults List (#3535, #3536).
• Add config isolation during instantiation so targets can receive independent
  config snapshots, similar to Hydra 1.3 behavior. Disabled by default
  (#3537, #3547).
• Restore Hydra 1.3's validation of call-site instantiation overrides against
  config schemas, without restoring value coercion (#3538, #3545).
• Stop automatically enabling allow_objects for objects stored in input
  configs. Applications that need this must opt in through OmegaConf. Objects
  supplied directly as call-site runtime arguments remain supported (#3545).
• Fix instantiate() crashing when call-site overrides are supplied to a
  Structured Config whose root is MISSING (#3542, #3548).
• Require OmegaConf 2.4.1rc1 or newer within the 2.4 release line (#3544).
• Ray launcher (security fix): read package versions from installed distribution
  metadata instead of importing modules. Breaking change: ray_pkg_version now
  expects installed distribution names, such as PyYAML instead of yaml (#3566).
• Ray AWS launcher: remove the rejected initial_workers, autoscaling_mode,
  and target_utilization_fraction cluster fields, and fix remote job script
  imports (#3564).

See the Hydra 1.3 to 1.4 instantiation migration guide.

The metadata resolver fix is also included in Ray launcher 1.2.2 for users of
Hydra 1.3.