OECD [to 21 November 2015]
http://www.oecd.org/newsroom/publicationsdocuments/bydate/
[We generally limit coverage to regional and global level initiatives, recognizing that a number of country-level announcements are added each week]

.
G20 leaders endorse OECD measures to crack down on tax loopholes, reaffirm its role in ensuring strong, sustainable and inclusive growth
16-November-2015
The leaders of the world’s 20 largest economies today endorsed overhauled global standards proposed by the OECD to crack down on tax evasion and reaffirmed the organisation’s central role in helping governments ensure strong, sustainable and inclusive growth.