build: update docs

Update the copyright information and NEWS entries.

Signed-off-by: David Rheinsberg <david.rheinsberg@gmail.com>

AUTHORS

@@ -30,7 +30,7 @@ AUTHORS-LGPL:
         along with this program; If not, see <http://www.gnu.org/licenses/>.
 
 COPYRIGHT: (ordered alphabetically)
-        Copyright (C) 2015-2019 Red Hat, Inc.
+        Copyright (C) 2015-2022 Red Hat, Inc.
 
 AUTHORS: (ordered alphabetically)
         David Rheinsberg <david.rheinsberg@gmail.com>

NEWS.md

@@ -1,5 +1,20 @@
 # c-rbtree - Intrusive Red-Black Tree Collection
 
+## CHANGES WITH 4:
+
+        * Add 'ptrace' build option to enable running tests using 'ptrace'
+          to verify extended execution properties. This option should not
+          be used in setups where 'ptrace' cannot be employed (like running
+          under gdb or valgrind). This option only affects the test-suite.
+
+        * meson-0.60.0 is now the minimum required meson version.
+
+        * TBD
+
+        Contributions from: David Rheinsberg
+
+        - TBD, YYYY-MM-DD
+
 ## CHANGES WITH 3:
 
         * Add more helpers. Add both a collection of iteratiors and helpers