did anybody upgrade to it yet?
any problems? or words of advice?

thanx

It depends on how you upgrade. From the language point of view you will have to play with php.ini to make it as backwards compatible as possible.

I didn't have any major problems at all. fopen and fread for remote files broke though... however if you use streams all works fine.

cool thanx a lot

it's failing on me with this error:
" configure: error: Cannot find header files under /usr"

i am running it with these options which i copied from my phpinfo:

./configure i386-redhat-linux --prefix=/usr --exec-prefix=/usr --bindir=/usr/bin --sbindir=/usr/sbin --sysconfdir=/etc --datadir=/usr/share --includedir=/usr/include --libdir=/usr/lib --libexecdir=/usr/libexec --localstatedir=/var --sharedstatedir=/usr/com --mandir=/usr/share/man --infodir=/usr/share/info --prefix=/usr --with-config-file-path=/etc --enable-force-cgi-redirect --disable-debug --enable-pic --disable-rpath --enable-inline-optimization --with-bz2 --with-db3 --with-dom=/usr --with-exec-dir=/usr/bin --with-png-dir=/usr --with-gd --enable-gd-native-ttf --with-ttf --with-gdbm --with-gettext --with-ncurses --with-gmp --with-iconv --with-jpeg-dir=/usr --with-mm --with-openssl --with-png --with-pspell --with-regex=system --with-xml --with-expat-dir=/usr --with-zlib --with-layout=GNU --enable-bcmath --enable-debugger --enable-exif --enable-ftp --enable-magic-quotes --enable-safe-mode --enable-sockets --enable-sysvsem --enable-sysvshm --enable-discard-path --enable-track-vars --enable-trans-sid --enable-yp --enable-wddx --without-oci8 --with-imap=shared --with-imap-ssl --with-kerberos=/usr/kerberos --with-ldap=shared --with-mysql=shared,/usr --with-pgsql=shared --with-snmp=shared,/usr --with-snmp=shared --enable-ucd-snmp-hack --with-unixODBC=shared --enable-memory-limit --enable-bcmath --enable-shmop --enable-versioning --enable-calendar --enable-dbx --enable-dio --enable-mbstring --enable-mbstr-enc-trans --with-apxs=/usr/local/psa/admin/bin/apxs --with-imap=/usr/local/src/imap-2002d

Your prefix is the directory containing apache!

hmm, my assumption was that i can actually use the same ./configure options as they did when they installed
apache is under
/usr/lib/apache in plesk 5, right?

Not necessarily sometimes it's copied across from a ghost which was installed differently.

The old standard install of plesk was like that, the directory locations for that didn't exist on the real server.