def upcoming_releases(self, product):
        """
        Get upcoming releases for this product.

        Specifically we search for releases with a GA date greater-than or
        equal to today's date.

        :param product: str, eg. "ceph"
        :returns: deferred that when fired returns a list of Munch (dict-like)
                  objects representing all releases, sorted by shortname.
        """
        url = 'api/v6/releases/'
        url = url + '?product__shortname=' + product
        url = url + '&ga_date__gte=' + date.today().strftime('%Y-%m-%d')
        url = url + '&ordering=shortname_sort'
        releases = yield self._get(url)
        result = munchify(releases)
        defer.returnValue(result)
Get upcoming releases for this product.

        Specifically we search for releases with a GA date greater-than or
        equal to today's date.

        :param product: str, eg. "ceph"
        :returns: deferred that when fired returns a list of Munch (dict-like)
                  objects representing all releases, sorted by shortname.