Ian wrote:
XCSoar is still undergoing rapid development which is not cool if you
want something realy stable so you can focus on flying not learning
new features on the pda.

XCSoar has two branches: a "stable" branch (that is 6.3.x currently)
and an "unstable" branch for those brave early adopters (6.4 alpha1
currently). The "stable" branch does not get new features, only bug
fixes. We do that because we are aware that many pilots just want the
most stable release possible without dangerous experiments on new
features.

Max