4.15.0 release - Implement custom test driver - Use 'gsettings' as a common channel name for the GSetting backend - Bug #14789 Fix GSettings backend assertion error, when probed but not used - Enable GSettings backend build by default - Add Bash completion for xfconf-query - Bug #15960: Add some missing xfconf_shutdown() in xfconf-query - Bug #15951: Fix 'xfconf_get_error_quark' introspecting warning - Remove perl bindings - Fix vala binding in dist tarball - Translation Updates: be, da, el, es, he, hr, hu, hye, gl, nl, sl, sq, zh_CN, zh_HK, zh_TW