Changelog

The Changelog lists in detail all updates and improvements made to AirwaySim over time.

Here you can see what has changed, what has been improved, and how the simulation continues to evolve.

Changelog
03-Apr-2026

New Scheduling (BETA) and Airport Slots view

New features

  • Scheduling v.2.0 BETA released to full public usage:
    • This is the fully new and totally rebuild Scheduling page, already previewed earlier.
    • New v.2.0 UI layout with full mobile compatibility.
    • Technically much more advanced and lightweight and thus much faster to use compared to the old page.
    • All features, apart from Move Schedule, work at this page currently. You may already use this page for all normal Scheduling.
    • New feature: Buy Slots when scheduling:
      • If a route is missing slots, the Add Flight dialog automatically suggests the slots purchase. Same rules and prices apply as when editing from Edit Routes area.
      • Please keep a close eye on this to make sure the slot availability and costs are accurate compared to the old editor, and please actively report all issues!
    • New feature: Clear Schedule view has now the ability to choose not to clear the A/B checks when clearing the aircraft schedule.
    • New feature: Ability to set the B check to end at the same time & day as A check.
    • New feature: Route mouseover tooltip shows any possible route payload limitations.
    • New feature: Set Registration menu shows the aircraft registration format, as well as your custom format for that base/fleet group.
    • New feature: A new automation "Set next available registration" appears at the Registration menu if a custom aircraft reg.format is saved, and it allows you to fetch the next free registration number for this plane.
    • New feature: Aircraft Nickname can now contain special characters, even smileys, and this works for the keyword search too.
    • New feature: More filtering to the Search Routes area compared to the old page.
    • Work in progress:
      • Move Schedule feature is not yet completed.
      • Plans are also made for a full & native "7-day scheduling" concept, but there are still a few technical hurdles on this. More details later.
  • Airport Slots view page fully updated:
    • The detailed view of airport slots (under Airport Information) is fully updated.
    • New v.2.0 UI layout with full mobile compatibility.
    • New 3rd-level view to slots of certain day & certain hour. As before, click on the individual slot numbers to view details.
    • Added slot usage statistics:
      • Total slots used (%)
      • Daytime slots used (%)
    • Improved drill-down navigation between time levels.
    • The 'Slot Allocation Per Airline' chart now shows only top-15 airlines, and rest are grouped under 'Other airlines' to keep the pie chart more clear.
    • NOTE: This new page is not yet visible in the "popup" mode (e.g. when clicking the slots icon from route editor). You'll find link to the new page from the full 'Airport Information' page's bottom section.

Improvements

  • Improved schedule-based delay calculations:
    • The system now more accurately reflects the real ground time pressure between flights when assigning routes to an aircraft. Single-route aircraft correctly retain outstation turnaround delay potential.
    • Removing a single flight now also correctly re-counts the flight delays of the aircraft's remaining routes.
  • In the backend the entire airport slots system has been migrated to v.2.0 AirwaySim Core, and all new v.2.0 UI pages now use the new system. Old pages continue to use the old code.

Fixes

  • Mobile layout breakpoint changed from 850 to 900px since mobile layout did not trigger for all phones on landscape mode.
  • Minor styling / UI corrections in various places.
  • Route editor (old UI) did not update newly purchased slots to the balance sheet as assets.
  • Minor fixes & additions to dark mode color definitions.
Posted at: 03-Apr-2026
Build Version: 2.0-20260403.01