Permanent link to NetBSD 7+ binary repos?

[Ottavio Caruso <ottavio2006-netbsd%yahoo.com@localhost>]

Hello,

# uname -av
NetBSD X61 7.0_RC3 NetBSD 7.0_RC3 (GENERIC.201508110747Z) amd64

There's no direct resource for NetBSD 7.0_RC3, but I assume pointing
to 7.0 should be the safe option for binary repos for Netbsd 7 and
above:
ftp://ftp.netbsd.org/pub/pkgsrc/packages/NetBSD/x86_64/7.0/All/

But of the releng website there's no sysmlink. The repos seem to point
to this resource:
ftp://nyftp.netbsd.org/pub/pkgsrc/packages/NetBSD/x86_64/7.0_2015Q2/All/

At the moment of writing there are only 10 packages.

Is this intended behaviour or is it a temporary glitch? Are binaries
really being built for release 7 or are they most symlinks to previous
releases?