API Version History

These release notes contain information about each release. For full documentation, see the Development & Integration Guides.

PayPal Payments

Direct Credit Card Payments

Advanced Payment Tools


Express Checkout and Direct Payment

These release notes are for the following products:

  • Express Checkout
  • Website Payments Pro
  • Mass Payments
  • Button Manager

Note While PayPal updates its code regularly to add features and correct problems, this API version number is updated only if there are changes to the interfaces or the behavior of this API. When there is a new API release, the WSDL version reflects the latest code version, which is why the API versions appear to skip numbers (e.g., there are no API releases associated with code releases 118).

The current API version is specified in the PayPalSvc.wsdl and applies to these API products:

<wsdl:definitions ns:version="122.0" 
xmlns:wsdl="http://schemas.xmlsoap.org/wsdl/"


Payflow API

The Payflow API includes the following products:

  • Payflow Link
  • Payflow Pro
  • PayPal Payments Advanced
  • PayPal Payments Pro

See the Payflow Gateway Developer Guide Revision History for the latest updates.


Website Payments Pro Hosted Solution

Website Payments Pro Hosted Solution is used to add transaction processing to merchant websites, and is available in Australia, France, Hong Kong, Italy, Japan, Spain, and the UK.

See the Revision History section of the integration guide for your country for the latest updates.


Adaptive Accounts API

Click a link below to open the release notes of interest.

Adaptive Accounts uses a major, minor, and maintenance versioning scheme, consisting of three period-separated numbers (e.g., 1.8.1), each with a unique implication:

  • First digit indicates the major release version — Major releases contain changes that are not backward compatible.
  • Second digit indicates the minor release version — Minor releases consist of feature additions or behavior changes that are backward compatible.
  • Third digit indicates the maintenance release version — Maintenance releases are used to correct smaller issues. Maintenance releases have minimal impact on the features or functionality of the API. These changes may or may not have associated schema changes.

Adaptive Payments API

Click a link below to open the release notes of interest.

Adaptive Payments uses a major, minor, and maintenance versioning scheme, consisting of three period-separated numbers (e.g., 1.8.1), each with a unique implication:

  • First digit indicates the major release version — Major releases contain changes that are not backward compatible.
  • Second digit indicates the minor release version — Minor releases consist of feature additions or behavior changes that are backward compatible.
  • Third digit indicates the maintenance release version — Maintenance releases are used to correct smaller issues. Maintenance releases have minimal impact on the features or functionality of the API. These changes may or may not have associated schema changes.

Invoicing API

Click a link below to open the release notes of interest.

The Invoicing API uses a major, minor, and maintenance versioning scheme, consisting of three period-separated numbers (e.g., 1.8.1), each with a unique implication:

  • First digit indicates the major release version — Major releases contain changes that are not backward compatible.
  • Second digit indicates the minor release version — Minor releases consist of feature additions or behavior changes that are backward compatible.
  • Third digit indicates the maintenance release version — Maintenance releases are used to correct smaller issues. Maintenance releases have minimal impact on the features or functionality of the API. These changes may or may not have associated schema changes.