Add changelog entry

debian/changelog

@@ -1,3 +1,18 @@
+wlcs (1.4.0-0ubuntu0) UNRELEASED; urgency=medium
+
+  * New upstream release. Notable changes:
+    + Add tests for zwp_text_input_unstable_v3
+    + Add tests for zwp_input_method_unstable_v2
+    + Add tests for zwlr_layer_shell_v1 version 4
+    + Drop requriement for compositors to implement wl_shell. Tests which
+      require an arbitrary "visible surface" should now only require one
+      of xdg_shell, xdg_shell_unstable_v6, or wl_shell.
+    + Fix expectations of keyboard focus for xdg_popup tests to match the
+      protocol. NOTE: These tests will fail on many compositors, including
+      Weston, as is is common to not follow the protocol correctly here.
+
+ -- Christopher James Halse Rogers <[email protected]>  Fri, 25 Feb 2022 15:33:24 +1100
+
 wlcs (1.3.0-0ubuntu0) groovy; urgency=medium
 
   * New upstream release. Notable changes: