Real Environment Xtreme Service Pack 3 for X-Plane

Payware

...but still no MAC version.

Worth it though ... at least for me =)

...but still no GNU/Linux version.

Bought REX for X-plane when it first came out and have never received any updates.

Jim,

You have to go download the updates. They are not issued by anyone but REX, and are a free download: http://realenvironmentxtreme.com/forum/index.php?board=31.0

Thanks Cameron, had no idea they had this section. All updated now.