The package versoni number for v1.6.1 (4.0.0-100002) is less than v1.6 (4.0.0-100050). So, when I tried to install the new packages, it did not install the new version correctly. Even though both v1.6 and v1.6.1 was installed, the installed kernel was actually v1.6. I had to uninstall v1.6 in order to get v1.6.1 installed properly. I don't the I needed to do that for the previous releases.
The package versoni number for v1.6.1 (4.0.0-100002) is less than v1.6 (4.0.0-100050). So, when I tried to install the new packages, it did not install the new version correctly. Even though both v1.6 and v1.6.1 was installed, the installed kernel was actually v1.6. I had to uninstall v1.6 in order to get v1.6.1 installed properly. I don't the I needed to do that for the previous releases.