This package is a pre-release of coming official 1.9.0 release. We would like you to help us improve the quality of the official release so feedbacks are very welcome. Please consult "ReadMe" enclosed in the dmg package before you post a bug report. Some known problems are written in that file. I hope you enjoy the new bleeding edge of FlightGear, as well as update GUI launcher and integrated Atlas.

You can download 1.9.0-pre1 package from either:

• Downloads page on this site
• Source forge release page

The final pre-release, 1.9.0-pre2, is now ready to download. This package is a pre-release of coming official 1.9.0 release. We would like you to help us improve the quality of the official release so feedbacks are very welcome. Please consult "ReadMe" enclosed in the dmg package before you post a bug report. Some known problems are written in that file. I hope you enjoy the new bleeding edge of FlightGear, as well as updated GUI launcher and integrated Atlas. This pre-release fixes the problem that crashed some aircraft.

You can download 1.9.0-pre2 package from either:

• Downloads page on this site
• Source forge release page

If everything goes well, we'll publish the official release within 10 days, so be patient!

We are very proud and excited to release the FlightGear 1.9.0 for Mac OS X. This release gives more fun and flexible flight to every single Mac user. It runs on both Mac OS 10.4 (Tiger) and 10.5 (Leopard). FlightGear 1.9.0 for Mac OS X comes with the fancy GUI launcher that eases your flight. You can change aircraft, airport, and options as you like.

The launcher also makes it possible to fly with your wing mates. Enabling multi-player mode pops up a fancy on-line map so you can find your new wing mates. Tail-to-nose flight can be more fun with fgcom, an integrated voice chat client. It allows you to chat with your wing mate for better communications including Voice ATC. Moreover, FlightGear Mac OS X finally integrates Atlas - the navitation map that helps your flight plan. Thanks to the easy installer in the launcher, you can add new aircraft, scenery, GUI updates, Nasal scripts, and any updates for existing files in a few seconds. Please consult ReadMe enclosed in the package for further information.

You can download FlightGear 1.9.0 from Downloads page, as always.

Have a happy flight, and a happy holiday!

I've reported that FlightGear may crash on Macs with nVidia Graphic cards due to likely driver bug in hardware mipmapping in a multi-thread environment. I've already introduced a workaround for this issue on 1.9.0 but it didn't cover all the nVidia drivers.

So I decided to disable hardware mipmapping on all nvidia drivers for avoiding annoying crash report.

How to update?

First, please read "Who needs to update" below and check if you need to update the framework. If you have never encounter a crash report while running FlightGear, you don't have to install this update. If you need this patch, then follow the instructions below:

1. Download osg.framework that includes a workaround for this issue.
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