Lifted from the announcement email:

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Dear Freeciv Fans,
On behalf of the dedicated Freeciv Dev Team, I proudly present the
golden release of Freeciv 2.1.0. This is a major release and the
result of two years of intensive (at least in periods) development. A
big thanks to everyone who donated patches, bug reports, ideas, and
not least a big chunk of their free time!
For an overview of the features in this release, see
http://www.freeciv.org/wiki/NEWS-2.1.0
For changes between rc1 and gold, see
http://www.freeciv.org/wiki/NEWS-2.1.0-gold
Download a source tarball from
ftp://ftp.freeciv.org/freeciv/stable
Grab 'em while they're fresh! =)
edit: Windows builds available from
http://www.freeciv.org/wiki/Download