Release Notes

Travelport has updated all JSON API authentication and authorization endpoints. Previous pre-production endpoints were deprecated 5 Dec 2025. Previous production endpoints are scheduled for deprecation 30 Jan 2026. API transactions in those environments will fail if using these endpoints after these dates. See Endpoint Migration for details.

Below are release notes for major versions 25.11.x of the Travelport JSON Air APIs. Incremental minor version updates (25.11.x.y) are listed only when they include customer-facing changes. See Archived Release Notes for releases 25.11.x and earlier.

Version numbering uses this format:

{year of release}.{major model # of release}.{minor version of release}

For example, an API release numbered as 26.11.14 means it was released in 2026 on ODM model 11, and cumulatively across all releases on that model version is the 14th release on model 11.

Developer Advisories for Upcoming Features

Travelport has released developer advisories (DAs) for the following upcoming features. DAs are issued for changes that may significantly change code and/or functionality in the JSON APIs. You must sign into My Travelport to see the full DA. Contact your Travelport representative if you have questions about how an upcoming release may affect you. After a feature has been deployed, it moves into the release notes area of this page and is no longer listed in this section.

There are no Developer Advisories for breaking changes at this time.

Developer Toolkits

No 2026 releases. Previous version available on Developer Toolkits & Downloads.

General Functionality

Most deployments for both GDS and NDC content are included in an API-specific releases. Cross-API and more general updates are listed in this section.

No 2026 releases to date.

Air Offer

No 2026 releases to date.

Seats and Ancillaries

Ancillaries 26.11.57: Ancillaries for LCC carriers | 8 Jan 2026

Adds support to search and book ancillaries for low cost carriers (LCC). LCC content is not yet supported in the JSON APIs. The search and book process for LCC is the same as for GDS and NDC content; however, when available, LCC seat offers will be indicated with the ContentSource value LCC and Identifier/authority will return the carrier code.

AirReservation

No 2026 releases to date.

GDS Exchange APIs

The GDS Exchange APIs support only GDS, not NDC content. See the Exchange, Refund, and Void Guide for NDC options.

Refund capabilities for GDS are under development.

Exchange Air Offer

Exchange Air Offer 26.11.49 : Internal | 15 Jan 2026

Internal updates only.

Exchange Air Order

Exchange Air Order 26.11.52 : Internal | 15 Jan 2026

Internal updates only.