# Flights API Release Notes Below are release notes for major versions 25.11.x of the Travelport TripServices Flights 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 TripServices 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. **These features may require you to make code changes prior to deployment.** This section is not inclusive of all upcoming features, and all deployment dates are subject to change. See the linked DA for full details. There are no outstanding Developer Advisories for updates not already included in the online help. ## 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. #### NDC Disruption Handling Introduces standard flows for handling NDC flight disruptions. In the Reservation Retrieve response, adds the Offer @type OfferModify with scheduleChangeInd set to true, and an additional instance of Product @type ProductAir to support returning both the disrupted and new flight segment details for each journey or leg. Customers can then choose to either accept the change, rebook the itinerary, or cancel for a refund per the carrier rules for the disruption. See [NDC Flight Disruption Handling](/docs/flights/guides/booking-and-reservations/flights-booking-guide#ndc-flight-disruption-handling) in the Booking Guide for details. ## Air Offer #### Air Offer 26.11.63: Premium Flex Search | 19 Feb 2026 Adds the Premium Flex Search feature, which provides flexibility around search dates and PCCs. Available only to specifically provisioned customers; contact your account representative for more information. See [Premium Flex Search](/docs/flights/guides/flights-search-guide#premium-flex-search) in the Flights Search Guide for usage and examples. Adds the following new functionality and objects: - Premium Flex Search point of sale (POS): In the Search request, send PricingModifiersAir/MultiPricingAgency with up to three PCCs to search in addition to the provisioned PCC. PCCs must be a branch agency provisioned with access for the requested PCC. - Premium Flex Search dates: In the Search request, send SearchCriteriaFlight/daysBeforeDeparture and/or /daysAfterDeparture with the value/s 1, 2, or 3 to search up to that number of days before and/or after the departure date. The Accept [header setting](/docs/flights/general/common-flights-api-headers) controls whether the response is aggregated (all offers are combined into a single CatalogProductOfferingsResponse objects) or streamed (multiple CatalogProductOfferingsResponse objects are returned consecutively). When sending flex search requests, append /premiumflex to the existing endpoint for all APIs in the search flow: Search, Next Leg Search, and/or Flight Specific Search reference payload. Scope and support: - GDS only; not supported for NDC. - Not supported for split ticketing or sorting. - Only one flex search capability can be sent in a request (i.e., either but not both dates and PCC). - Supported in the Search API for journey- and leg-based searches for one and two O&Ds; three or more O&Ds are out of scope. - Flight Specific Search full payload does not support Flex Search Point of Sale options. - Flight Specific Search reference and full payload do not support Flex Search Dates options. #### Air Offer 26.11.62.2: returnAllBrands | 19 Feb 2026 In the Flight Specific Search reference payload requests, adds the returnAllBrands object to return all brands in a fare family regardless of the brand of the anchoring flight chosen from the initial Search response. GDS only; not supported for NDC. #### Air Offer 26.11.61, 62: Internal | 7 Jan & 2 Feb 2026 Internal updates only. ## Seats and Ancillaries #### Ancillaries 26.11.58-62: Internal | 22 Jan-26 Feb 2026 Internal updates only. #### 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 TripServices APIs. The search and book process for LCC is the same as for GDS and NDC content; when available, LCC seat offers will be indicated with the ContentSource value *LCC* and Identifier/authority will return the carrier code. ## AirReservation #### AirReservation 26.11.79-83: Internal | 22 Jan-19 Feb 2026 Internal updates only. #### AirReservation 26.11.78: Loyalty program cross-accrual | 15 Jan 2026 In the Reservation Retrieve and Workbench Retrieve responses, adds the supplier and shareWithSupplier objects to the CustomerLoyalty object to return frequent traveler cross-accrual on partner airlines. ## GDS Exchange APIs The GDS Exchange APIs support only GDS, not NDC content. See the [Exchange, Refund, and Void Guide](/docs/flights/guides/exchange-refund-and-void-guide) for NDC options. Refund capabilities for GDS are under development. ### Exchange Air Offer #### Exchange Air Order 26.11.50-53: Internal | 22 Jan-Feb 2026 #### Exchange Air Offer 26.11.49: Search by brand | 15 Jan 2026 In the Exchange Search request, adds the BrandPreference object in PricingModifiersAirChange to support specifying one or more brand tiers in the request. ### Exchange Air Order #### Exchange Air Order 26.11.52-55: Internal | 15 Jan-26 Feb 2026 Internal updates only.