Below is a list of the changes included in the SC-Fall-2026.4 release of Sound Transit GTFS data.

Schedule Changes
* 1 and 2 Lines
  * 10/6 - 10/8 late night rail service replaced by bus service between Westlake and Northgate
  * 10/17 - 10/18 cross lake rails service replaced by bus service
  * 10/9 remove scheduled disruption service
  * Fall and Winter holidays
* T Line
  * Fall and Winter holidays
* S and N Lines
  * Fall and Winter service and holidays

Route Changes
* none

Stop Changes
* none

Other Changes
* none