v0.15.0b1

What's Changed

This beta has many bug fixes and provides several big improvements:

• Adds the ability to scale ortholearner training using Ray (by @v-shaal in #800)
• Allows missing values in W and sometimes X (by @fverac in #791)
• Enables federated estimation of linear models (by @kgao in #818)
• Provides a CATE validation suite for discrete models (by @amarvenu in #777)
• Enable model selection for first stage models (by @kbattocchi in #808)

New Contributors

• @v-shaal made their first contribution in #800
• @kgao made their first contribution in #818

Full Changelog: v0.14.1...v0.15.0b1