centos 4.9发布

没有光盘，可以从4.8在线升级到4.9.以下是官网的消息。
The CentOS development team is pleased to announce the release of CentOS
4.9 for i386 and x86_64.

This release corresponds to the upstream vendor 4.9 release.

Also released in the updates repository for CentOS-4.9 are all updates
through March 1st, 2011.

If you are currently using an older CentOS 4 version, using this command
will upgrade you to CentOS-4.9:

yum upgrade

NOTE: The upstream provider did not respin media for the 4.9 release
and therefore the CentOS project will also not respin our install media.
Installs moving forward will be off the 4.8 media and an upgrade will
move you from version 4.8 to version 4.9. We do this to maintain
compatibility with 3rd party kernel drivers which are designed to be
installed as part of the installation process.

This is the last expected set of changes to add new functionality to the
CentOS 4. We will continue to provide security updates and bug fixes
for CentOS 4 until its End-of-Life scheduled for February 29, 2012.