As per the upstream vendors errata support policy, updates for CentOS 2 will also end on May 31, 2009.

It is recommended that any system still running CentOS 2 should be upgraded to a more recent version of CentOS before this date to ensure continued security and bug fix support.

Errata:
RHSA-2008:0521-03 Red Hat Enterprise Linux 2.1 - 1-Year End Of Life Notice

More details are available from the RedHat web site at
https://rhn.redhat.com/errata/rh21as-errata.html


CESA-2008:0287-01: Important CentOS 2 i386 libxslt security update
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Life Settlement Awareness Month Offers Industry Panel and Continuing-Education Course
CESA-2008:0288-01: Critical CentOS 2 i386 samba security update