Feb13th07@// PEAR 1.3.6 and earlier to be dropped
As of January 1, 2008, PEAR will be dropping support for PEAR versions 1.3.6 and earlier.
If you are using PEAR 1.3.6 or earlier, upgrade using these simple steps:
pear upgrade --force PEAR-1.3.6 Archive_Tar-1.3.1 Console_Getopt-1.2
pear upgrade --force PEAR-1.4.11
pear upgrade PEAR
Read more about the whole thing from here: Innovating the future: Package.xml 1.0, and PEAR 1.3.6 are officially deprecated