According to home page (http://nzbget.net): Stable version: 18.1 (8 April 2017) Testing version: 19.0-r2021 (17 June 2017)
Done in https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=1c45fef9a1b804b28a913fb8322d247ecf1693a6 and https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=30c360b4cf84195a9f15ee1d4610aa3929f0c08f