Today the Informix 11.50.UC6 Developer Edition Ubuntu packages went live on the Ubuntu Partner Repository.
These packages are the easiest way to install Informix products on any platform.
As my screen shot shows I upgraded from UC5, and as one comes to expect with Ubuntu packages the upgrade was quick and painless.
To see the Informix packages in the Synaptic package manager, go to Software Sources->3rd Party Software and enable the Ubuntu Hardy Partner repository. More detailed instructions, including how to install these packages on later versions of Ubuntu (by default these are for the Hardy - 8.04 LTS release) are available in my earlier post.
If you are wondering when we are going to support later versions of Ubuntu which don't require libstdc++5 to be installed, the Panther release of IDS expected later in the year will dispense with the libstdc++5 requirement and support the next Ubuntu Long Term Support release 10.04 LTS.