The AirwaySim Changelog has been moved from the external platform back to the main website.

This third-party service did not develop according to our needs and had some technical issues.

Up-to-date AirwaySim Changelog: https://www.airwaysim.com/About/Changelog

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, Aérospatiale) 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.

New features

• Added new "About the Game" section to the website with several pages of information and details about the simulation.

Improvements

• News highlight announcement banner added to site header.
  
  
• Minor visual updates to "Game Subscriptions", "Game Achievements", "Billing History" and Shop's "Order History" pages.
  
  
• Achievements page is visible also to guest visitors.
  
  
• Game Area index page has now a small welcome message at the top to guide new users (can be hidden from the close icon). Also the 2nd level (sidebar) navigation is added there to improve the structure.
  
  
• Various minor tuning to layout, information, and visual cues in various places to give more information to visitors not familiar with the simulation.
  
  
• Updated various backend and maintenance tools in the Admin area.
  
  
• Updated logging systems of the backend processes.
  
  
• Technical changes to the system resources build process.
  
  
• Several scripts and systems of the Core website updated.
  
  
• Some refactoring done to the game data loading and listing systems for better code maintainability.
  
  
• Social media announcement posts styling refreshed slightly.

Fixes

• Contact Us page did not always load if clicked from inside an active game world.
  
  
• Notifications of unread in-game messages did not always appear.
  
  
• Game Subscriptions page confirmation popup did not close properly after ending a game subscription.

Improvements

• Game worlds list ("departure board") added to AirwaySim website front page.
  
  
• Major component change to the core website: Font Awesome icons changed to new Web Awesome component library, allowing easier development of unified UI elements in the future.
  
  
• Sim build version, and page load speed information is now also visible to logged-in users at the site's footer (as "nice-to-know" info, and in case of any problems).
  
  
• A few minor technical improvements made to user's login session handling for better loading times.
  
  
• Upgraded our local development environment to a new software stack, and implemented a set of new project management tools.
  
  
• Some internal database selection logic changes made for better security/configurability.

Fixes

• Fleet Commonality Calculator failed to work if selected engine had internal ID number >1000 (misconfiguration).
  
  
• Airline HQed in the Netherlands Antilles was unable to open additional bases in mainland NL.
  
  
• Base Airports page did not show the clarifying text that French (mainland) based airlines could open bases also in the French overseas departments.
  
  
• Minor layout fixes to the main navigation structure.

New features

• The aircraft manufacturer names are now dynamic, and follow historical changes.
  
  
• There have been various mergers of aircraft manufacturers throughout the history and this new small feature aims to model these changes. The update is part of the fleet commonality v.2.0 update, and with this change we can make the fleet commonality bonuses work even more accurately than before.
  
  
• Example #1: Dornier and Fairchild-Dornier were previously separate manufacturers in the database, but have now been merged, with a name change from Dornier to Fairchild Dornier in 1996 following the buyout. This allows you to benefit from fleet commonality manufacturer bonuses if you fly Dornier 328 and Fairchild-Dornier 528/728/928.
  
  
• Example #2: In 1997 Boeing and McDonnell Douglas merge, thus all McD aircraft are being manufactured by Boeing after that date. However since there is no actual manufacturer commonality involved, since both companies retained their own production lines and systems, there is no manufacturer bonus in fleet commonality for opearating B737 and MD-80 series after the merger, but you do get a bonus for operating B717 and MD-80/90 ( = situation remains the same as before the merger). 
  
  
• Example #3: Bombardier sold the Cseries development to Airbus in 2018, thus creating the Airbus A220. The manufacturer name changes only for this aircraft series, and not for other Bombardier aircraft models.
  
  
• The update does not affect the aircraft model names, so even though Boeing buys McDonnell Douglas, the aircraft model names remain as McDonnell Douglas MD-82 etc.
  
  
• The British aircraft manufacturer name changes are not yet modelled since all what happened there in 1950s to 1970s is rather complicated. There might be also some other omissions in the data, but please let us know and we'll update.
  
  

Improvements

• Added exception to fleet commonality calculations: If the fleet group has more than 1 aircraft in total, AND all of them are for sale, except for one-two aircraft (which are not for sale), AND those particular planes are in maintenance AND have zero routes, then they do NOT count for fleet commonality. This (rare) case happens when you are selling your entire fleet in the used market, but need to keep the C/D checks valid. Previously the single plane in maintenance of the otherwise inactive entire fleet would have created commonality costs even though the fleet was not in operation, and change is made to not create unnecessary costs of a fleet that you do not actually operate.
  
  
• Bankruptcy and airline closure news listings improved. The Airline News feed at Dashboard shows a bit more information of each closed airline, such as the CEO's username, airline HQ airport (among other bases), and number of aircraft per each base, base's opening date (incl. airline founding date for HQ), and the possible alliance membership of the airline, and also the fleet listing of the airline (fleets in operation, for sale, or long-term storage; not those that were leased out). [change applies only to pages of v.2.0 code, thus manual airline closure via Office->Bankruptcy doesn't yet post this type of expanded news]
  
  
• The new salary calculation rules will be also in effect in Airline Generations and The Age of Flight game worlds, refer to changelog dated 31st Jul 2025 ("Game Balance Updates").

Fixes

• Base airport selector did not show correct airports when opening a new base for airline based in the French "departments".
  
  
• Filtering by individual aircraft model in Manage Routes -> Destination View did not work.
  
  
• Airline bankruptcy news did not always show up at the Dashboard's Airline News feed.
  
  
• Game clock (time of day) calculation in one internal backend function could have exceeded 23:59, putting some game news into the wrong game date.
  
  
• For extremely large airlines, the staff management interface at Office -> Personnel page was limiting the amount of staff you could hire manually (UI limit).
  
  
• Aircraft Information listing page showed the "age" of aircraft that were already scrapped.

Improvements

• Tuned the game world's initial airport slot growth mechanism to make sure the standard slot amount is reached after two full game years (steady growth at random dates during this period).
  
  
• The e-mail template at the main website is updated to be more mobile-compatible, and better formatted across different devices and e-mail clients.
  
  
• The main website e-mail templates are now dark-mode compatible (depending a bit on your e-mail client).
  
  
• Updated the layout of the in-game billing notification/warning emails to show the relevant information more clearly.
  
  
• AirwaySim newsletter is updated with a new more mobile-compatible layout with dark-mode support (similar to other site e-mails).
  
  
• Account activation and password reminder processes at the main website improved with additional security layers and technical improvements.
  
  
• User account inactivity checks re-activated. The system will send a reminder mail to keep the user account alive if it has been inactive (no logins) for more than 180 days. A second reminder is sent at 270 days, and the account closure happens automatically after 360 days of inactivity. The email includes a direct one-click link to retain the account activity status. (n.b. unactivated or otherwise "pending" accounts are removed faster without separate reminder e-mail)
  
  
• Some other technical improvements and changes to the login handling at the main website. The login session timeouts after 60 minutes of inactivity (no clicks) if the "Always stay logged in" checkbox was not checked.
  
  
• Improved the handling of our anti-spam ban list (provided by 3rd party) to avoid false-positives.

Fixes

• Fleet Commonality page grouped data incorrectly for fleet groups with multiple different manufacturer names (e.g. data for McDonnell Douglas MD-81 and Boeing 717 were shown twice); did not affect cost calculation, UI display issue only.
  
  
• Newsletter subscription button did not work at My Account page.
  
  
• Automatic login timeout handler did not always work properly, and could have booted the user out even he was active at the site.

Improvements

• Dornier 328JET separated to its own fleet group (with significant partial commonality benefits with the prop-D328 group). This update is only effective for any games starting from August 2025.
  
  
• Salary calculation rules updated. The salaries are now based on the cost/salary levels of each base country instead of the HQ country. This update is only effective for any games starting from August 2025 (update may be added to other running games later; not decided yet). 
  
  
• Cost calculation of route-specific marketing campaigns updated. The cost is now based on the cost/salary levels of the base airport the campaign relates to instead of the airline-wide cost/salary levels.
  
  
• Adjusted the opening dates of following airports to be 1950-01-01 instead of their actual opening date of 1951-1952 to be in line with the custom setups of all recent ultra-long game worlds (unrealistic change, but done for playability): Johannesburg, Helsinki - Vantaa, Moscow - Sheremetyevo.
  
  
• Slightly adjusted partial fleet commonality bonuses for several fleet groups (within Airbus, Boeing, Fokker, Ilyushin, Piper and Saab).
  
  
• Various code structure changes to keep up with our coding standards.
  
  
• Updated several 3rd party backend systems and libraries.
  
  
• Content Security Policy (CSP) configuration updated to the site.
  
  
• Improved cleanup of some old data in the backend processes.

Fixes

• Nagoya airport was not properly configured to relocate to the new airport.
  
  
• Corrected some missing fuel supplier companies in the long games.

Improvements

• Added "Idle Fleet Types" rule to Fleet Commonality. 
  
  
• A fleet type is considered idle (and exempt from commonality costs) if both of the following conditions are met: a) No aircraft of the fleet type are assigned to any active routes AND b) The oldest aircraft in the fleet type was delivered no more than 45 game days ago.
  
  
• This grace period ensures flexibility for airlines adding or returning fleet types (e.g. from leases from other players) without incurring immediate costs.
  
  
• This change is now "live" in all games apart from "Airline Generations" and "History and the Future". The change will apply to these two games next week - please check your idle fleets before that.

THE NEW COMMONALITY FEATURES ARE BEING IMPLEMENTED TO ALL RUNNING GAME WORLDS, APART FROM THE CURRENT MODERN TIMES GAME, GRADUALLY OVER THE NEXT FEW DAYS.

New features

• Partial Commonality feature ("Fleet Similarity Bonuses") added. Similar models, such as A320 and A330 can now benefit from cost savings based on similarity between fleets.
  
  
• Fleet Commonality Calculator feature added. This feature allows you to simulate how adding or removing aircraft types would affect your airline’s monthly fixed costs.
  
  
• Fleet Commonality chapter in user manual updated: https://manual.airwaysim.com/simulation-documentation/fleet-commonality

Improvements

• Fleet Commonality page is now in tab format, with own tab for Aircraft and Engine Commonality costs and for Calculator.
  
  
• Engine Commonality tab now includes the "Engine Types Overview" section and data on cost overhead ("bloat") from operating various engine types.