[Koha] Koha Version 3.9

[jackymasibo]

Hi guys,

My Koha system is up and running but am just wondering which Koha
version am I running is it a stable release or development because
after clicking on about Koha button I got the following information:

About Koha
Server information

Koha version: 	3.09.00.022
OS version ('uname -a'): 	Linux LIBRARY 2.6.32-5-686 #1 SMP Sun May 6
04:01:19 UTC 2012 i686 GNU/Linux
Perl interpreter: 	/usr/bin/perl
Perl version: 	5.010001
Perl @INC: 	/usr/share/koha/lib
/etc/perl
/usr/local/lib/perl/5.10.1
/usr/local/share/perl/5.10.1
/usr/lib/perl5
/usr/share/perl5
/usr/lib/perl/5.10
/usr/share/perl/5.10
/usr/local/lib/site_perl
.
MySQL version: 	mysql Ver 14.14 Distrib 5.1.49, for debian-linux-gnu
(i486) using readline 6.1
Apache version: 	Server version: Apache/2.2.16 (Debian)
Zebra version: 	Zebra 2.0.44 (C) 1994-2010, Index Data ApS Zebra is
free software, covered by the GNU General Public License, and you are
welcome to change it and/or distribute copies of it under certain
conditions. SHA1 ID: 419ad759807269fdfa379799a051ed3a551c6541 Using
ICU


Please advise me if this version is the best for a production
environment or if it’s not the best what should I do to change it to
the current stable release?

Thanks in advance