Hi Bratters
Still the same answer as the last time.
Unfortunately althought the Navdata only changed aircraft data, everything else such as routes which you have that you have changed manually will be deleted, so as your route info is precious to you, dont update. Airnav didnt put any route data on the update, only the aircraft data changed and it was the same for at least the last update and possibly/probably the one before.
With the current Navdata/Airnav version, change one thing change everything and it will be this way until we get the next Airnav version.
If you want to keep your routes which you have updated/amemded manually dont update as they wil be deleted.
The routes have been a bone of contention from day one well before any Navdata updates and the changes made by airlines at the start of the summer and winter schedules dont help. They are eventaully updated in the servers as time goes by by Airnav receiving updates from the resources they use. For anyone new to the forum there are plenty of previous thread refering to routes which cover this subject.
Alan