March 6th, 2005, 22:08
"At the end of March, the RELENG_4_8 (sometimes called 4.8-SECURITY)
branch will reach its designated End of Life and cease to be supported
by the FreeBSD Security Team.
Released in April 2003, FreeBSD 4.8 was the first release designated
for "extended" two-year security support instead of the normal one-year
support. Over this time, 27 security advisories have been issued which
have affected FreeBSD 4.8.
It is recommended that all FreeBSD 4.8 users upgrade their systems to
FreeBSD 4.11 before the end of the month. FreeBSD 4.11 has also been
designated for extended support, and will be supported until at least
the end of January 2007.

After FreeBSD 4.8, the next release End of Life will be for FreeBSD
4.10, which will cease to be supported at the end of May 2006.

Colin Percival"