Shared libraries version bump?

[b. f.]

> I think I'll rebuild all ports, and more, maybe I should make and keep packages in case I can't update to BETA3 in place.

If you want to be on the safe side, a complete rebuild is probably a
good idea -- and moreover, one that removes all ports and cleans out
${PREFIX} and ${PKG_DBDIR} before rebuilding any ports, if you can
afford the downtime.  Otherwise, the new misc/compat8x port can help
ease the transition.  If they aren't available on pre-release media,
default packages for certain architectures are available at:

ftp://ftp.freebsd.org/pub/FreeBSD/ports/${ARCH}/packages-9-current/

Depending on the architecture, and when you download them, they will
have been compiled on a variety of recent versions of 9, but will
probably work on the BETAs, at least with misc/compat8x, as a stopgap
while you rebuild ports.

b.