Which up2dates to install manually after asg-9.003-16.1.iso?

Hello,
I downloaded "asg-9.003-16.1.iso" from ftp.astaro.de.
After installing that, I want to manually update to the newest firmware-version. When the newest version is installed, WebAdmin displays "Release 9.004-33" at the bottom. But on the ftp-server, I found the following up2date-files:

• u2d-sys-9.003015.tgz.gpg
• u2d-sys-9.003016.tgz.gpg
• u2d-sys-9.003-9.004-15.33.1.tgz.gpg
• u2d-sys-9.004029.tgz.gpg
• u2d-sys-9.004-9.004-29.33.1.tgz.gpg

There's no "u2d....9.004-33...tgz.gpg" :confused:

I suppose I don't need "u2d-sys-9.003015.tgz.gpg" and "u2d-sys-9.003016.tgz.gpg", when I used "asg-9.003-16.1.iso" to install. But which of the other 3 up2date-files do I need to install and in which order? :confused:

Remark: I don't want to use the Up2Date-function in WebAdmin because I'm doing firmware-upgrades from ASG8 to UTM9 very late in the evening or on the weekends and I want to go home as soon as possible! ;) So I don't want to wait until UTM has automatically downloaded the up2date-files. So I download them before the "upgrade-day" to speed up the upgrade process.