Instead of specifying PACKAGESITE in the main pkg.conf, now each repo can be in its own config file. Quoting the announcement:
1. Ensure your pkg(8) is up-to-date. 'pkg -v' should say at least
1.1.4_8. If it does not, first upgrade from ports.
2. Remove any repository-specific configuration from
/usr/local/etc/pkg.conf, such as PACKAGESITE, MIRROR_TYPE, PUBKEY.
If this leaves your pkg.conf empty, just remove it.
3. mkdir -p /usr/local/etc/pkg/repos
4. Create the file /usr/local/etc/pkg/repos/FreeBSD.conf with: