Update WHATSNEW for 04.02.01 release.

docs/WHATSNEW

@@ -1,5 +1,33 @@
 CHANGES TO REMIND
 
+* VERSION 4.2 Patch 1 - 2022-12-15
+
+- MINOR IMPROVEMENT: TkRemind: If "Extra Remind Options" contains -m, make
+  TkRemind start the calendar with Monday instead of Sunday.
+
+- MINOR IMPROVEMENT: Sample files: Add French holidays courtesy of
+  Clément Bœsch.
+
+- MINOR IMPROVEMENT: A few performance fixes, likely not even noticeable in
+  most cases.
+
+- MINOR FIXES: Fix misleading comments in the source code.
+
+- MINOR FIX: Remove a bunch of dead code in the moon-phase routines.
+
+- MINOR FIX: Remove unnecessary %"...%" markers in holidays/us.rem
+
+- MINOR FIX: Don't use the -ffat-lto-objects if we're compiling with Clang.
+
+- MINOR FIX: Remind: Fix a broken printf-format string (need to double up on %
+  to get a literal % in the output.)
+
+- BUG FIX: Make test suite pass regardless of the date on which it is run.
+  D'oh!!!
+
+- BUG FIX: Make sure the banner gets printed each time through a "*N"
+  command-line option loop.
+
 * VERSION 4.2 Patch 0 - 2022-10-14
 
 - NEW FEATURE: remind: Allow weekdays to be globally-omitted.  For example: