From the GSX discord:

Version 3.8.7 March 31th, 2026

GSX Pro NEW: New Aviramp Ramped staircase added. Must be enabled in the airport profile.

GSX (all versions) NEW: Gate selection menu now hides positions that are too small for the current aircraft by default. A toggle entry allows showing or hiding unsuitable positions, similar to the existing airline code filter.

GSX (all versions) NEW: Boarding and Deboarding can now use Jetways and Rear Stairs simultaneously, splitting passengers between the front jetway and rear door based on seat proximity. Enable via the "Simultaneous Jetway + Rear Stairs" option in the airport customization dialog.

GSX (all versions) NEW: If a jetway fails to dock, boarding and deboarding will now automatically fall back to using stairs instead of not displaying passengers.

GSX (all versions) NEW: PIGS now places a barrier pole on the side where stairs are not present, allowing it to work with a single stair (e.g. jetway on front door + rear stairs only).

GSX (all versions) NEW: Airport customization dialog: right-click any waypoint Customize button to copy the existing waypoints to the clipboard as Python code, ready for use in handler scripts.

GSX (all versions) NEW: Audio settings now play a sound level check when a volume slider is released, allowing users to immediately hear the effect of the volume change.

GSX Pro NEW: Improved aircraft data for SimConnect-only aircraft (no GSX profile): fuel hose and GPU cable interactive points are no longer misclassified as doors, and default service positions are computed from door positions.

GSX Pro NEW: Support for green Fonts in VDGS editor and airport handlers.

GSX Pro NEW: Support PMDG FANS 2B CDU.

GSX (all versions) NEW: Handler scripts: standard Python module calendar added.

GSX (all versions) NEW: Handler scripts: selectGate() allows programmatic gate pre-selection. Works during taxi (from onEnterAirport) and in-flight (from onSelectGateInFlight). Supports gate names, numbers, ParkingProxy objects, and wildcard patterns.

GSX (all versions) NEW: Handler scripts: onSelectGateInFlight() callback fires when the user selects an airport from the in-flight nearby airports menu, before the gate selection menu appears. Call selectGate() inside it to auto-assign a gate.

GSX (all versions) NEW: Handler scripts: onGateReset(reason) callback fires when the current gate is lost or changed, with reasons such as taxied away, user changed, user revoked, airport exit, or reposition.

GSX (all versions) NEW: Handler scripts: setStopPositionOffset() now works correctly with "Reposition here" and auto-reposition from the main menu. The offset is applied from the custom stop position and replaces the legacy AlternativeStopPositions callback. An offset of 0 sets the stop position exactly at the custom stop position with no correction.

GSX (all versions) NEW: Handler scripts: jetwayWaypoints, jetwayEnterGatePos and their deboarding variants can now be set at any time before boarding starts, not just during early initialization

GSX (all versions) NEW: Handler scripts: many additional Python built-in functions and types now available, including sorted, reversed, zip, enumerate, any, all, set, bytes, and standard exception types.

 GSX (all versions) NEW: Handler Script Editor: improved intellisense with dot-completion, calltip signatures and tab-completion for standard Python types, built-in functions, and all handler API methods. F1 on Python builtins opens the official Python documentation.

GSX (all versions) Change: Airport customization dialog: unified the waypoint controls enable/disable logic for jetway and non-jetway gates around the "Simultaneous Jetway + Rear Stairs" option.

GSX (all versions) Change: Airport customization dialog opens faster thanks to reduced intermediate repaints during tree and control updates.

GSX (all versions) Change: Audio device changes in settings now take effect immediately when the dropdown is changed, instead of requiring Apply.

GSX Pro Change: PMDG handler: the "Use built-in Airstairs?" question is now skipped when a jetway is already docked or when the user explicitly requested "Operate Jetway".

GSX Pro Change: Steering math rewritten to better simulate steering for all kind of vehicles (front steering wheels, back steering, all-steering).

GSX (all versions) Fix: Comprehensive fix for services, menus, or jetways not working after landing, caused by various resources not being properly reset after takeoff.

GSX (all versions) Fix: Requesting Boarding a second time (after completing it once) could leave loaders stuck with stale state, missing belt animations, and trains not arriving.

GSX (all versions) Fix: Services could get permanently stuck showing "Waiting for other services to complete" with empty parentheses, blocking all GSX operations until a restart.

GSX (all versions) Fix: Airport customization profiles with MARS section names containing parentheses were silently rejected, causing a parsing error.

GSX (all versions) Fix: MARS sub-positions can now fully customize pushback slots, service configuration, and other parking properties independently from the parent gate.

GSX (all versions) Fix: MARS sub-position pushback routes edited via the 2D route editor were not being saved correctly.

GSX (all versions) Fix: After pushback, the tug could drive through the aircraft on its return route to the gate.

GSX (all versions) Fix: Possible crash in the Refueling state when the fuel truck audio library failed to initialize.

GSX (all versions) Fix: PIGS could fail to appear with certain stair configurations due to repeated SimConnect queries during the position optimization search.

GSX Pro Fix: PIGS barrier pole could be placed at an unreachable position when the arm rotation was clamped, causing the ribbon to float in the air instead of connecting to the pole.

GSX (all versions) Fix: Baggage loader operators were missing during deboarding when performed after boarding, due to the attached SimObject being prematurely destroyed between services.

GSX (all versions) Fix: MARS sub-positions with customized docking system positions now always show their static docking objects, regardless of which sub-position is currently active.

GSX (all versions) Fix: Passenger path thickness for deboarding was ignored on jetway walk-in routes, always using the boarding thickness instead.

GSX (all versions) Fix: Handler Script Editor: various fixes to dot-completion, F1 contextual help, and calltip accuracy.

GSX (all versions) Fix: Airport handler script callbacks (onEnterAirport, onAirportBeforeVehicleSelect) were not triggered when preselecting a gate during flight, causing handler customizations to be skipped. The callback order now matches the Developer Guide: onEnterAirport always fires before onAirportBeforeVehicleSelect.

GSX (all versions) Fix: Passengers bus announcement voice not disabled when "Aural Cues" in the Settings was Disabled.

GSX Pro Fix: PIGS could be created multiple times during service startup, resulting in overlapping barrier objects.

GSX Pro Fix: PIGS were not removed when opening the parking position editor.

GSX (all versions) Fix: Pushback could get stuck on routes with multiple direction changes (e.g. pull-push-pull), with the tug and aircraft stopping at the first turn while wingwalkers continued.

GSX (all versions) Fix: Cargo loading progress could report 100% too early when the front loader materialized after the initial progress check.

GSX (all versions) NEW: Added the following Handling operators: AACT, Air Korea, Jeju Air Service, Korean Air A.S., Sharp Aviation K (South Korea), Aeroitalia (Italy), Norwich Airport, SaxonAir, West Atlantic UK (United Kingdom), JBS Handling, Toki Air (Japan), Ust-Kamenogorsk (Kazakhstan), Baikal Airport, Barnaul Airport, Irkutsk Airport (Russia), West Wind Aviation (Canada), Flughafen Erfurt-Weimar, Saarbrücken Airport (Germany), Ostrava Airport (Czech Republic), Sarajevo Airport (Bosnia), Gambia International AH, Niro (Gambia), HACTL (Hong Kong), National Aviation Services (Kuwait), TRANSOM Handling (Oman), PHS (Mexico).

GSX (all versions) NEW: Added the following Catering operators: Korean Air C&D Service (South Korea), Mainline Aviation (USA), Aviaserve (Moldova).

Edited March 31Mar 31 by MrLamb

Wow, Exhaustive!  Thanks Mr L.

-B

 

Wow! That's quite a list! I'm amazed at how much detail GSX crams into their animations.

All that and I still have to wait for the tug to connect before I can tell them what direction to push

There's always been a lot of snickering and finger-pointing at GSX's quirks and vagaries over the years but one cannot but admire, fully support and thank Umberto and his team for pushing out improvement after improvement and a multitude of features without charging a [insert your choice of minimum value of your local currency]. 👍

A long list - wasn't the idea to support inibuilds A340 biz jet version with passengers in the cabin?

12 hours ago, MrLamb said:

GSX (all versions) NEW: PIGS

???? Animals?

53 minutes ago, Bernard Ducret said:

???? Animals?

No animals were hurt during the creation of this GSX update. But in all seriousness, it stands for Passenger integrated guidance system.

8 hours ago, Pilot53 said:

All that and I still have to wait for the tug to connect before I can tell them what direction to push

Or you can let them connect the tug during boarding. There’s even an option to make this happen automatically in the settings page. 

9 hours ago, Pilot53 said:

All that and I still have to wait for the tug to connect before I can tell them what direction to push

It was like this years ago!!

And users begged to change it so the direction could always be decided at the very last moment, this way you could comply with an online controller giving you another direction after the tug was connected. 

Edited April 1Apr 1 by virtuali

But what does this mean after this update, and i have lets say a one year old GSX file for KJFK ?

Does all that new stuff work in this file ore is it needed tose ( all ) older GSX files have to be updated ??

cheers 😉

Edited April 1Apr 1 by pmplayer

4 hours ago, virtuali said:

It was like this years ago!!

And users begged to change it so the direction could always be decided at the very last moment, this way you could comply with an online controller giving you another direction after the tug was connected. 

TBH, the current way is best.