Updates for release

NEWS

+4.17.0
+======
+- Try to build higher version available tag
+- xfce-do-release: A review of confirmation prompts
+- helpers: Improve script portability
+- Improve Xfce Developer Center (developer.xfce.org)
+- xdt-features.m4: Always enable compilation warnings
+- g_locale_to_utf8 is misspelled as g_local_to_utf8
+- xfce-build: Always pick the latest stable release
+- Create the m4/ if it does not exists
+- Use autoreconf to bootstrap xfce4-dev-tools itself
+- Use autoreconf to bootstrap autotools
+- xfce-do-release: Check for `docker` installed
+- Add dependencies to build thunarx-python CI
+- Fix location of apidocs
+- xfce-build: Fix conditional in gitlabci
+- Export apidocs as GitLab artifacts
+- Get rid of glib-gettextize usage and XGETTEXT_ARGS custom args
+- Remove obsolete AM_GLIB_GNU_GETTEXT
+- helpers: Fix command-line if git-config core.editor is unset
+- Update obsolete m4 macros
+- helpers: Add 'xfce-build describe' command
+
+
 4.16.0
 ======
 - Bump glib to 2.50 based on xfce4.16 roadmap

configure.ac

 dnl
-dnl Copyright (c) 2002-2020
+dnl Copyright (c) 2002-2021
 dnl         The Xfce development team. All rights reserved.
 dnl
 dnl Written for Xfce by Benedikt Meurer <benny@xfce.org>.
@@ -9,7 +9,7 @@ dnl ***************************
 dnl *** Version information ***
 dnl ***************************
 
-XDT_VERSION_INIT([4.16.0], [git])
+XDT_VERSION_INIT([4.17.0])
 
 dnl # DO NOT MODIFY ANYTHING BELOW THIS LINE, UNLESS YOU KNOW WHAT
 dnl # YOU ARE DOING.
@@ -20,7 +20,7 @@ dnl *** Initialize autoconf ***
 dnl ***************************
 AC_INIT([xfce4-dev-tools], [xdt_version],
         [https://gitlab.xfce.org/xfce/xfce4-dev-tools/])
-AC_COPYRIGHT([Copyright (c) 2002-2020 The Xfce development team. All rights reserved.])
+AC_COPYRIGHT([Copyright (c) 2002-2021 The Xfce development team. All rights reserved.])
 AC_CONFIG_MACRO_DIR([m4])
 AC_REVISION([xdt_version_build])