Not working with private_message 3.0

Problem/Motivation

drupal/private_message_windows[1.0.0-beta1, ..., 1.0.0-beta15] require drupal/private_message ^2.0 -> found drupal/private_message[2.0.0-beta1, ..., 2.0.0-beta18] but it conflicts with your root composer.json require (^3.0@beta).
- Root composer.json requires drupal/private_message_windows ^1.0@beta -> satisfiable by drupal/private_message_windows[1.0.0-b

Steps to reproduce

Proposed resolution

Remaining tasks

User interface changes

API changes

Data model changes