On Sat, Jan 25, 2014 at 8:16 AM, jonetsu@teksavvy.com <jonetsu@teksavvy.com> wrote:

I just installed ardour3 64bit-3.5.308-dbg. The installation
showed:

!!! WARNING !!! - The version of Jack on this system is too
old! Using an old version of Jack is not recommended. Please
update Jack for best results.

System Jack version:
Recommended minimum versions:
Jack1 - 0.121.3
Jack2 - 1.9.8

But then the following is installed:

% dpkg -l | grep jack

(other bits removed)

ii jackd 5
ii jackd2 1.9.8~dfsg.4+20120529git007cdc37-2ubuntu2

Is there any problem ?

Looks like a bug in the version number comparison, probably caused by the ~dfsg... part of the string.

You don't have any problems. Although you should expect exporting to have problems (because you're using jack2 1.9.8).