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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
27-Mar-2026

New charts, updated runway calculations, and minor changes

New features

  • New charts/graphs module taken into use:
    • A new modern framework for graphical charts has been introduced to the game interface.
    • As the first step, new "Cost Distribution by Fleet Type" and "Cost Distribution by Engine Group" charts are added to the Fleet Commonality page. This acts as the first "public technical test" of this new charting system.
    • This system will gradually replace the current charting system as pages are updated to the v2.0 UI.

Improvements

  • Updates to aircraft runway performance calculations:
    • Improved aircraft runway performance modelling (takeoff and landing) in the cases the aircraft is runway limited and route payload has to be reduced.
    • The previous version had some inaccuracies especially with landing runway length calculations, but these are now handled better and have less inconsistencies.
    • Generally speaking the landing runway calculation is a bit more restrictive now than in the previous version, but it should be more accurate and reflect real operations better.
    • This update has been implemented to the History and the Future game, and any games which have started or are starting after that. (According to our check of all existing routes in HatF game, only 0.05% of all routes will see small changes of payload limits downwards.)
  • Improved a few aircraft images for better quality based on user feedback.
  • Improved user access control to the game.
  • Further behind-the-scenes improvements to backend systems, development workflow, and testing tools.
  • General overall improvements to code quality and standards, thanks to our new development and testing tools.

Fixes

  • Various minor fixes to dark mode colors in old UI elements based on user feedback.
  • Game time converter did not work on Safari.
  • Minor fix in alliance invitation automatic decline message upon airline closure.
  • Fleet Commonality, Scheduling and Settings pages did not sort alphabetically if manufacturer name started with a lowercase letter.
Posted at: 27-Mar-2026
Build Version: 2.0-20260327.01
24-Feb-2026

Dark mode

New features

  • Dark mode feature is now available.
    • You can swap the theme from account dropdown menu. You must be logged in to view this option.
    • This feature is not yet considered to be fully complete and final, so please send feedback on how to improve the styling. Especially the old in-game pages (of game v.1.5) may not be perfect, but are mostly usable.

Improvements

  • Various minor site UI tuning in new user account creation and account password handling.
Posted at: 24-Feb-2026
Build Version: 2.0-20260224.01
23-Feb-2026

Technical updates to website

Improvements

  • Changelog moved to the main website (About the Game --> Changelog).
  • Text editors (like airline description) allow paste in markdown (.md) format for automatic formatting.
  • Updated several backend script libraries.
  • Updated several frontend UI libraries. Mostly no visible changes.
  • Cookie consent dialog updated (you need to re-approve).

Fixes

  • Forum PM notifications could sometimes lead to error 500 at the game interface.
Posted at: 23-Feb-2026
Build Version: 2.0-20260223.01
16-Feb-2026

New aircraft image library

New features

  • Complete rebuild of the in-game aircraft image library, covering all ~700 aircraft variants.
  • Higher resolution images for a noticeably cleaner and sharper UI.
  • Consistent quality baseline across all aircraft, including replacements for many older low-quality, blurry, or black-and-white images.
  • Correct variant accuracy: Each aircraft variant has its own dedicated image, matching real-world differences where relevant.
  • New sources: Over 200 images have been re-sourced for better quality and better technical accuracy.
  • Era-appropriate visual styles so the look evolves naturally through aviation history.
  • The update includes new internal automation tooling and workflow for better image management and source tracking.

Other improvements

  • Dynamic manufacturer names can now handle complex changes. Example: DHC-7 fleet was first produced by de Havilland Canada, then acquired by Bombardier, then some of the Bombardier's production went to Viking Air, and it later renamed to De Havilland Canada when rest of the production was consolidated.
  • More manufacturer corporate data is added to the Dynamic manufacturer names feature. These include changes of the Canadian aircraft industry (DHC, Bombardier, VikingAir), British aircraft industry (Armstrong, de Havilland, Vickers, Bristol, Hawker, BAC, Scottish Aviation, British Aerospace, BAE Systems), French aircraft industry (Sud, Nord, AĆ©rospatiale) and remaining US manufacturers (Fairchild, Swearingen, Lockeed, Martin). With these updates the Fleet Commonality v.2.0 is now completed and the full historical logic for manufacturer changes (and associated costs) is now present.
  • The aircraft manufacturer name changes are also now posted in Dashboard's Aircraft News.
  • Improved used aircraft price listing mechanism for AI broker listings.
  • Further upgrades to our development stack by modernizing development environment, versioning tools and project management structure.

Fixes

  • Country of manufacturing was not correctly shown for A220 fleet.
  • Various small fixes in the backend systems to keep the code clean and up-to-date.
  • Nominal range value for aircraft from used market did not show correctly if an upgrade (winglets etc.) was already installed to the aircraft and seating configuration was being changed during the purchase (display issue only).
  • Fixed an issue where automatic A/B checks could be skipped when the airline was beyond the credit limit and automatic C/D check scheduling was attempted but could not start due to insufficient funds.
  • Fixed additional base airport rules for airlines from the Netherlands and France prior to EU Open Skies.
Posted at: 16-Feb-2026
Build Version: 2.0-20260216.01
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