Release 6.0.0

• Introduces a new single Purchase Path interface using fetch by URL
• Introduces a new single Button Actions interface using ActionQuery
• Replaces CheckoutExtension interface with improved PurchasePathExtension interface
• New static Button API with PurchasePath, ButtonActions, User, and Debug modules
• Removes all deprecated 5.x functionality
• Removes all merchant functionality migrated to the Open Source Merchant Library
• Updates minimum SDK version to 19 (Android 4.4 KitKat)

Release 5.32.0

• Adds automatic Predictable Rewards and Instant Rewards cards to In-App Checkout
  (disabled by default — reach out to your Partner Success representative for details)

Release 5.31.1

• Fixes issue that led to incorrect size and position for custom Checkout Cards.
• Fixes issue where Checkout Extension navigation callbacks reported previous page url.

Release 5.31.0

• Scrolling down in the web view now dismisses the displayed card
• Checkout Extensions no longer receive onProductNavigate() callback if product is null

Release 5.30.0

• Limit Button SDK embedded web browser to only one instance at a time
• Fix a potential crash when parsing null URLs on web view navigation

Release 5.29.1

Fix intermittent web checkout crash when viewing a product.

Release 5.29.0

• Replaced beta API to show/hide checkout cards (API diff)
• Add multiple cards to a Checkout Extension
• Adds ability build custom cards for Checkout Extensions
• Fixed a bug where elements at the bottom of the web view may be partially off screen

Release 5.28.0

• Fixes an intermittent crash when the authorization challenge activity is destroyed in the background

Release 5.27.0

• Create and show a single Text Card with Checkout Extensions
• In-App Checkout navigation buttons now respect custom color
• Advances version number to 5.27.0 to synchronize with Button iOS SDK

Release 5.22.1

Corrects package visibility for new checkout extensions classes added in version 5.22.0.