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.

New features

NOTE: THIS FEATURE IS CURRENTLY ONLY AVAILABLE IN THE NEW AGE OF FLIGHT SCENARIO.

• The whole code for calculating the commonality costs has been fully rewritten (AirwaySim v.2.0).
• The biggest change is that once you add a new fleet, the costs of the other fleets stay as they are already - there are no sudden and hidden jumps and the whole system is more predictable. However, there is a new "Fleet Count Bloat Factor" that starts to increase all commonality costs company-wide mildly and logically from the third fleet type onwards. In other words we still have the disadvantage-factor of operating too many fleets, but it now behaves and scales totally differently than before for better realism.
• The overall commonality related training and maintenance costs are thus lower than in the past version.
• The costs are calculated on a "base cost per fleet type" + "per-aircraft cost in fleet" manner, so operating one single aircraft is relatively more expensive than operating for example 10 aircraft of the same fleet.
• Another notable change for realism is that all your aircraft in operational state ( = even the ones with no routes) count towards the commonality costs (since the costs for having the ability to operate the aircraft naturally start when the aircraft is in your possession). Aircraft in long-term storage are still free of all commonality related costs.
• The training costs are now calculated in a more realistic manner based on the actual crew numbers needed by the fleet. (This includes also a rather significant bugfix where flight crew numbers were not correctly taken into account by the old commonality model, and thus you will see lower training costs in v.2.0 fleet commonality.)
• Aircraft size scales now the costs properly, and is based on the fleet's Size Class (1-4) and the fleet's average size (MTOW).
• Training and Maintenance costs have a new internal "Efficiency Factor" that gives you benefits of scale, i.e. large fleet brings the overall costs per aircraft down, in a similar way the Admin costs have already been in the old version.
• Aircraft's fleet-specific "Maintenance Cost Factor" is also taken into account, basically giving cost advantages to more modern fleet types.
• There is a new "Base Bloat Factor" that increases costs if your fleet is spread to different base airports since they each need their separate support facilities. Naturally if you operate a single fleet at a single base only, no such bloat exists for that fleet's costs.
• Costs for small airlines are made a bit lower overall (up to airlines with a fleet of 10 planes or less) to help with the start-up phase.
• A new "partial commonality bonus" will be introduced in the next update round of this feature.
• The User Interface is also new and v.2.0 mobile-compatible. This will be fine-tuned with more improvements soon, with for example a "commonality calculator" feature.

Other New features

• Website's main news system is upgraded to a new publishing system (no visual changes to user interface at this stage).

Improvements

• Adjusted a bit the cargo-conversion rates by AI Used Aircraft Brokers (less frequent now).
• Minor usability improvements to text editor in airline/alliance description & notepad.
• Improved the in-game single-page loader (SPA) where the backend notifications won't load if the page is left open/idle for a long time.
• Core website now includes a better detection of temporary and disposable e-mail addresses, also additional anti-spam services added to registration and forum posting.
• System now purges unused user accounts more effectively and earlier.
• Made some re-organization to some backend files and assets for better management.

Improvements

• Updated Credits store's backend libraries due to security policy changes.
• Alliance invitation menu now makes sure the airline is not listed as a possible invitee if it shares HQ/base with any other existing alliance member. (n.b. this does not apply to alliance application from the applying airlines' side since this still within the old UI)

Fixes

• Low Credits balance e-mails were being sent out too often.
• Notifications of in-game messages did not always pop to the main navigation's notification balloon.
• Scheduling page's search data became sometimes corrupted preventing the page load.
• Alliance icon of an alliance still in founding state ( = not yet offically formed) showed up in route planning's airline schedule listing.
• If an aircraft was in long-term storage and a model conversion (e.g. to freighter) was performed, and the plane was taken out of the long-term storage while the conversion maintenance was still ongoing, the D check included in the conversion was not being performed. Fixed by disabling the long-term storage removal while conversion maintenance is ongoing.