Here are some of the highlights on the recent updates made to the AirwaySim software. For always up-to-date information and full list of all changes please see the announcement forums and the AirwaySim Changelog. Updates New major feature: Improved aircraft performance calculation system. The aircraft performance system (flight times, fuel usage etc.) has been completely updated and code rewritten. The basis of AirwaySim 10 years ago was an accurate performance model for aircraft and now it has been the time to do a complete overhaul to the systems. All the main functions remain the same and there a only a couple of small visible changes for users, but underneath most things have changed. Aim for the change has been to update the code and to make the system even more accurate. Besides of the new code, a project has been started to gather more detailed and verifiable aircraft performance data. In the past the data has been already based on various good sources but we're aiming to find even more actual aircraft performance information based on actual aircraft flight manuals and such data. This will take considerable time and the data is updated in increments once available. New manual page is published: https://www.airwaysim.com/game/Manual/Aircraft/Performance/ Please read the details from the forums. Alliance rating system renewed The rating is the basis on how virtual passenger see the alliance as a whole. It is a rating from 0 to 100 points and shown also as a star rating from zero to five stars. The rating consists of four main components: Alliance network quality, alliance marketing efforts, alliance age and alliance flight punctuality. Check the changelog for details. Combi (pax/cargo) aircraft of size class Very Large can now transport Heavy Cargo. Added various search and filtering enhancements to differentiate passenger, combi and cargo aircraft at the game interface. Scheduling page tooltip now shows any possible payload limitations for the route (in numbers of pax for pax/combi aircraft and in kg/lbs for cargo aircraft). These are the major changes from the last month. There are dozens of other smaller updates too (refer to changelog for details).