# [4.0.0-beta.0] - 2020-09-29
## Added
- Sign in once to access all Proton services (ProtonMail, ProtonCalendar, and ProtonDrive) 
- Open Proton apps in a new tab or window without signing back in 
- Choose your preferred Proton Account recovery method: email address or phone number
- New authentication flow to sign in or create a Proton Account 
- Switch between Proton apps from the app switcher
- New dropdown menu in ProtonAccount to:
    - Switch between multiple accounts
    - Manage account-level settings 
    - Switch to dark mode
# [4.0.0-beta.0] - 2020-09-29
## Added
- Sign in once to access all Proton services (ProtonMail, ProtonCalendar, and ProtonDrive) 
- Open Proton apps in a new tab or window without signing back in 
- Choose your preferred Proton Account recovery method: email address or phone number
- New authentication flow to sign in or create a Proton Account 
- Switch between Proton apps from the app switcher
- New dropdown menu in ProtonAccount to:
    - Switch between multiple accounts
    - Manage account-level settings 
    - Switch to dark mode
Read our blog post on [Proton Account beta release](http://protonmail.com/blog/sso-beta).
Update the changelog for Proton Account
[CP-894] Update the changelog for Proton Account
