2.2.11

• Add bank_account_authorized_at to Subscription

2.2.10

• Add tax_type, tax_rate, tax_region to Adjustment
• Added bank_account type and attributes to BillingInfo, these include:
  • name_on_account
  • account_type (checking or savings)
  • last_four
  • routing_number

2.2.9

• Added original_adjustment() to Adjustment for retrieving the linked
  adjustment where the other came from for better accounting purposes

2.2.8

• Added address attribute into preview calls and update invoice notes path
• Added tests for new read-only attribute vat_location_valid on Account
• Added invoice_number_prefix and invoice_number_with_prefix() on
  Invoice for use with the Country Invoice Sequencing feature
• Added support for update_notes path on Subscription
• Added refund_amount (open amount refunds) to Invoice
• Added refund (line item refunds) to Invoice

2.2.7

• Added ability to read and write invoice notes
• Added tax_code to plan, add_ons, and adjustment
• Added inspection on the details of a transaction: transaction.details
  and transaction.transaction_error
• Removed support for SSLv3

2.2.6

• Bug fix: subscription.invoice now returns the invoice for subscription
  change previewing

2.2.4

• Added account entity use code: account.entity_use_code
• Added bulk parameter
• Added billing agreement support to BillingInfo

2.2.3

• Added subscription change preview
• Added remaining_billing_cycles to subscriptions

2.2.2

Add subscription.preview()

2.2.1

• Added tests for invoice_description