diff --git a/ANNOUNCE b/ANNOUNCE
index ef2bb59fd..a381abd7e 100644
--- a/ANNOUNCE
+++ b/ANNOUNCE
@@ -29,6 +29,15 @@ while consuming minimal system resources.
 Changes
 =======
 
+Release candidate 4 resolves portability problems on 64-bit AIX and
+64-bit MinGW, with FreeBSD/NetBSD/AIX make(1), and with the Sun C
+compiler; improves the fallback used in groff's man pages to keep them
+rendering on systems that don't implement the new `MR` man(7) macro;
+makes generation of the distribution archive less dependent on the build
+configuration; makes the automated tests more robust and revealing;
+improves configuration checking for URW font availability; and updates
+the documentation.
+
 Since groff 1.22.4 was released in December 2018, 26 people have made a
 total of over 4,500 commits.
 
@@ -135,14 +144,14 @@ sha256sum < groff-1.23.0.rc4.tar.gz | cut -f1 -d\  | xxd -r -p | base64
 Caveats
 =======
 
+o A defect in GNU diffutils 3.9 (January 2023) causes gdiffmk to
+  malfunction and its automated test to fail.  See
+  <https://debbugs.gnu.org/db/61/61193.html>.
+
 o GNU tools, or otherwise POSIX-conforming ones, are generally required
   to build on Solaris 10 or 11.  See the "PROBLEMS" file in the
   distribution archive.
 
-o A failure in automated testing occurs (if you run "make check") for
-  gdiffmk if GNU diffutils 3.9 is used.  This is a known problem with
-  that release; see <https://debbugs.gnu.org/db/61/61193.html>.
-
 o Solaris 10 has known problems with automated tests; see the "PROBLEMS"
   file in the distribution archive.