Release 4.4.0

[4.4.0]

May 4, 2026

New Features

Feature Rollout: Added support for Feature Rollouts, a new experiment type
combining Targeted Delivery simplicity with A/B test measurement capabilities.
Feature Rollouts enable progressive rollouts with full impact analytics, metric tracking,
and confidence intervals.
See Feature Rollout docs for more information.

• Remove experiment type validation from config parsing (#602)
• Add Feature Rollout support (#601)

Fixes and Improvements

• Remove legacy flag-level holdout fields (#604)