docs: Release v1.4.0

[davidgrayston-paddle]

Changes: v1.3.1...docs/release-v1.4.0

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Added

• Added simulations api related changelog
• Added traffic_source property to NotificationSetting entity
• Support notification settings traffic_source filter
• Support new payment methods offline, unknown, wire_transfer
• Support tax_rates_used property on Adjustment entity

Fixed

• Dropped receipt_data on create and preview of a one-time charge for Subscriptions and Transactions
• TransactionsClient::preview() TransactionPreview response now allows null IDs for non-catalog prices and products:
  • items[]->price can now return Price (with id) or TransactionPreviewPrice (with nullable id)
  • details->lineItems[]->priceId is now nullable
  • items[]->priceId is now nullable
  • details->lineItems[]->product can now return Product (with id) or TransactionPreviewProduct (with nullable id)
• Empty custom data array will now serialize to empty JSON object {}
• EventsClient::list and Notification->payload will now return UndefinedEvent for unknown event types.

Added

• TransactionsClient::create() now supports operation items with optional properties:
  • Resources\Transactions\Operations\Create\TransactionCreateItem
  • Resources\Transactions\Operations\Create\TransactionCreateItemWithPrice
• TransactionsClient::update() now supports operation items with optional properties:
  • Resources\Transactions\Operations\Update\TransactionUpdateItem
  • Resources\Transactions\Operations\Update\TransactionUpdateItemWithPrice
• TransactionsClient::preview() now supports operation items with optional properties:
  • Resources\Transactions\Operations\Preview\TransactionItemPreviewWithNonCatalogPrice
  • Resources\Transactions\Operations\Preview\TransactionItemPreviewWithPriceId

Deprecated

• TransactionsClient::create() operation items have been deprecated:
  • Entities\Transaction\TransactionCreateItem
  • Entities\Transaction\TransactionCreateItemWithPrice
• TransactionsClient::update() operation items have been deprecated:
  • Entities\Transaction\TransactionUpdateTransactionItem
• TransactionsClient::preview() operation items have been deprecated:
  • Entities\Transaction\TransactionItemPreviewWithNonCatalogPrice
  • Entities\Transaction\TransactionItemPreviewWithPriceId