From: FreeBSD portmgr secretary on
In preparation for 8.1-RELEASE, the ports tree will be in feature freeze
after release candidate 1 (RC1) is released, currently planned for June 11.

If you have any commits with high impact planned, get them in the tree
before then and if they require an experimental build, have a request for
one in portmgr@ hands within the next few days.

Note that this again will be a feature freeze and not a full freeze.
Normal upgrade, new ports, and changes that only affect other branches will
be allowed without prior approval but with the extra Feature safe: yes tag
in the commit message. Any commit that is sweeping, i.e. touches a large
number of ports, infrastructural changes, commits to ports with unusually
high number of dependencies, and any other commit that requires the
rebuilding of many packages will not be allowed without prior explicit
approval from portmgr@ after that date.

Thomas
with portmgr-secretary@ hat on

--
Thomas Abthorpe | FreeBSD Ports Management Team Secretary
tabthorpe(a)FreeBSD.org | portmgr-secretary(a)FreeBSD.org