these packages from rhwas don't seem to be there: mysql-5.0.50sp1a-2.el5s2 perl-DBD-Pg-1.49-2.el5s2 unixODBC-2.2.12-8.el5s2
and some sub-packages don't seem to have updated versions:
php-mcrypt.x86_64 5.1.6-15.el5.centos.1 installed php-mhash.x86_64 5.1.6-15.el5.centos.1 installed php-mssql.x86_64 5.1.6-15.el5.centos.1 installed php-readline.x86_64 5.1.6-15.el5.centos.1 installed php-tidy.x86_64 5.1.6-15.el5.centos.1 installed
the pear and pecl sub-packages don't seem to have new versions either, but i don't know if that is an issue.
i am guessing the php sub-packages are because of the unknown --with or --define options that i've been asking about.