After the upgrade, the printer no longer would print.
In previous versions of the kernel, the parallel ports were numbered as follows: lp0 -> (0x378), lp1 -> (0x278?) but with the latest kernel, the parallel ports are numbered as follows: lp0 = first port probed, lp1 = second port probed, etc. For this reason a user should look through the output from dmesg and edit /etc/printcap so that each lp is now pointing to its new device name; once this edit is complete, the user should restart lpd