diff --git a/charclass_invlists.inc b/charclass_invlists.inc
index 50dfd4b65bf6..4a3866dafcdf 100644
--- a/charclass_invlists.inc
+++ b/charclass_invlists.inc
@@ -436055,7 +436055,7 @@ static const U8 WB_table[23][23] = {
  * 3f4f32ed2a577344a508114527e721d7a8b633d32f38945d47fe0c743650c585 lib/unicore/extracted/DLineBreak.txt
  * 710abf2d581ac9c57f244c0834f9d9969d9781e0396adccd330eaae658ac7d6b lib/unicore/extracted/DNumType.txt
  * 6bd30f385f3baf3ab5d5308c111a81de87bea5f494ba0ba69e8ab45263b8c34d lib/unicore/extracted/DNumValues.txt
- * 8968a5ee00063fa31ff15474b95ccb6b9c228e3ebad6c20bc77f4225187e2023 lib/unicore/mktables
+ * 52af47e14e5de40ccba986bd59c6d8c863de93e3d231f7ecca62feb9c2b2990a lib/unicore/mktables
  * 55d90fdc3f902e5c0b16b3378f9eaa36e970a1c09723c33de7d47d0370044012 lib/unicore/version
  * 0a6b5ab33bb1026531f816efe81aea1a8ffcd34a27cbea37dd6a70a63d73c844 regen/charset_translations.pl
  * c7ff8e0d207d3538c7feb4a1a152b159e5e902d20293b303569ea8323e84633e regen/mk_PL_charclass.pl
diff --git a/lib/unicore/mktables b/lib/unicore/mktables
index a10ec339bdb1..75a3e201320e 100644
--- a/lib/unicore/mktables
+++ b/lib/unicore/mktables
@@ -871,6 +871,15 @@ push @tables_that_may_be_empty, 'Grapheme_Cluster_Break=Prepend'
 push @tables_that_may_be_empty, 'Canonical_Combining_Class=CCC133'
                                                     if $v_version ge v6.2.0;
 
+# These properties of Egyptian hieroglyphs are not yet handled by Perl.  Their
+# intended audience is only specialist Egyptologists
+push @tables_that_may_be_empty, qw(kEH_Cat kEH_Desc kEH_HG kEH_IFAO
+                                   kEH_JSesh
+                                   kEH_NoMirror kEH_NoMirror=Yes
+                                   kEH_NoMirror=No
+                                   kEH_NoRotate kEH_NoRotate=Yes)
+                                                    if $v_version ge v16.0.0;
+
 # The lists below are hashes, so the key is the item in the list, and the
 # value is the reason why it is in the list.  This makes generation of
 # documentation easier.
@@ -8811,7 +8820,7 @@ sub trace { return main::trace(@_) if main::DEBUG && $to_trace }
     # filesystem to distinguish between, this is used to manually give short
     # names for the directory name immediately under $match_tables that the
     # match tables for this property should be placed in.
-    main::set_access('match_subdir', \%match_subdir, 'r');
+    main::set_access('match_subdir', \%match_subdir, 'r', 's');
 
     my %has_dependency;
     # A boolean that gives whether some table somewhere is defined as the
@@ -10049,10 +10058,13 @@ sub finish_property_setup($file) {
     # file directly (it was documented in 5.12 and 5.14 as being thusly
     # usable), keep it from being adjusted.  (range_size_1 is
     # used to force the traditional format.)
-    if (defined (my $nfkc_cf = property_ref('NFKC_Casefold'))) {
-        $nfkc_cf->set_to_output_map($EXTERNAL_MAP);
-        $nfkc_cf->set_range_size_1(1);
+    foreach my $property (qw(NFKC_Casefold NFKC_Simple_Casefold)) {
+        if (defined (my $cf = property_ref($property))) {
+            $cf->set_to_output_map($EXTERNAL_MAP);
+            $cf->set_range_size_1(1);
+        }
     }
+
     if (defined (my $bmg = property_ref('Bidi_Mirroring_Glyph'))) {
         $bmg->set_to_output_map($EXTERNAL_MAP);
         $bmg->set_range_size_1(1);
@@ -10060,6 +10072,14 @@ sub finish_property_setup($file) {
 
     property_ref('Numeric_Value')->set_to_output_map($OUTPUT_ADJUSTED);
 
+    # These two properties have no short names and the file names for them
+    # clash in DOS 8.3.  Work around this by creating shorter file names that
+    # work
+    my $IDCMStart = property_ref("ID_Compat_Math_Start");
+    $IDCMStart->set_match_subdir("IDCMStart") if defined $IDCMStart;
+    my $IDCMCont= property_ref("ID_Compat_Math_Continue");
+    $IDCMCont->set_match_subdir("IDCMContinue") if defined $IDCMCont;
+
     # The rest of this sub is for properties that need the Multi_Default class
     # to create objects for defaults.  As of v15.0, this is no longer needed.
 
@@ -13736,6 +13756,10 @@ END
         next if $range->start == 0x1D7CE;   # This whole range was added in 3.1
         next if $range->end == 0x19DA && $v_version eq v5.2.0;
         next if $range->end - $range->start < 9 && $v_version le 4.0.0;
+
+        # 2 sequential series of 10 each were added in 16.0
+        next if $range->start == 0x116D0 && $range->end == 0x116E3;
+
         Carp::my_carp("Range $range unexpectedly doesn't contain 10"
                     . " decimal digits.  Code in regcomp.c assumes it does,"
                     . " and will have to be fixed.  Proceeding anyway.");
@@ -15179,11 +15203,11 @@ END
 
     # Perl tailors the WordBreak property so that \b{wb} doesn't split
     # adjacent spaces into separate words.  Unicode 11.0 moved in that
-    # direction, but left TAB,  FIGURE SPACE (U+2007), and (ironically) NO
-    # BREAK SPACE as breaking, so we retained the original Perl customization.
-    # To do this, in the Perl copy of WB, simply replace the mappings of
-    # horizontal space characters that otherwise would map to the default or
-    # the 11.0 'WSegSpace' to instead map to our tailoring.
+    # direction, but left TAB,  FIGURE SPACE (U+2007), and (ironically)
+    # NO_BREAK SPACE as breaking, so we retained the original Perl
+    # customization.  To do this, in the Perl copy of WB, simply replace the
+    # mappings of horizontal space characters that otherwise would map to the
+    # default or the 11.0 'WSegSpace' to instead map to our tailoring.
     my $perl_wb = property_ref('_Perl_WB');
     my $default = $perl_wb->default_map;
     for my $range ($Blank->ranges) {
@@ -15225,6 +15249,46 @@ END
         }
     }
 
+    # In Unicode 15.1, the InCB property was added, which causes us to have to
+    # split GCB into subclasses that match various subclasses of InCB
+    my $perl_gcb = property_ref('_Perl_GCB');
+    my $incb = property_ref('InCB');
+    if (defined $perl_gcb && defined $incb) {
+
+        # For each class in GCB ...
+        foreach my $gcb_table ($perl_gcb->tables) {
+            my $gcb_name = $gcb_table->name;
+
+            # ... we see if it has any code points that are in the three
+            # classes of interest in INCB.
+            foreach my $incb_table ($incb->table('Consonant'),
+                                    $incb->table('Extend'),
+                                    $incb->table('Linker'))
+            {
+                my $intersection = $gcb_table & $incb_table;
+
+                # If the intersection is empty, then nothing need be done.
+                next unless $intersection->ranges;
+
+                # Likewise if the intersection doesn't subtract anything,
+                # nothing need be done.
+                next if $gcb_table->matches_identically_to($intersection);
+
+                # Otherwise, construct a new table consisting of the
+                # intersection, removing its entries from the existing GCB
+                # table.  The name of the new table is the combination of the
+                # GCB and InCB table names
+                my $incb_name = $incb_table->name;
+                my $combined_name = "${gcb_name}_$incb_name";
+
+                foreach my $range ($intersection->ranges) {
+                    $perl_gcb->replace_map($range->start, $range->end,
+                                           $combined_name);
+                }
+            }
+        }
+    }
+
     # Create a version of the LineBreak property with the mappings that are
     # omitted in the default algorithm remapped to what
     # http://www.unicode.org/reports/tr14 says they should be.
@@ -15324,8 +15388,27 @@ END
                 }
             }
         }
+        elsif ($v_version ge 15.1.0 && $value eq standardize('Quotation')) {
+
+            # Unicode 15.1 splits LB=QU initial quotes and final quotes, and
+            # regular quotes
+            for my $i ($range->start .. $range->end) {
+                my $gc_val = $gc->value_of($i);
+                if ($gc_val eq 'Pi') {
+                    $perl_lb->replace_map($i, $i, "Initial_Quote");
+                }
+                elsif ($gc_val eq 'Pf') {
+                    $perl_lb->replace_map($i, $i, "Final_Quote");
+                }
+            }
+        }
     }
 
+    # This is an Alphabetic, but it doesn't need to be split off, because no
+    # current rule involving Alphabetics requires not including this.
+    $perl_lb->replace_map(0x25CC, 0x25CC, "Dotted_Circle")
+                                                      if $v_version ge 15.1.0;
+
     # This property is a modification of the scx property
     my $perl_scx = Property->new('_Perl_SCX',
                                  Fate => $INTERNAL_ONLY,
@@ -19778,13 +19861,21 @@ my @input_file_objects = (
                    ),
     Input_file->new('IdStatus.txt', v13.0.0,
                     Pre_Handler => \&setup_IdStatus,
+                    Has_Missings_Defaults => $IGNORED,
                     Property => 'Identifier_Status',
+
+                    # Part of UTS 39, so must be downloaded separately from
+                    # unicode.org
                     UCD => 0,
                    ),
     Input_file->new('IdType.txt', v13.0.0,
                     Pre_Handler => \&setup_IdType,
+                    Has_Missings_Defaults => $IGNORED,
                     Each_Line_Handler => \&filter_IdType_line,
                     Property => 'Identifier_Type',
+
+                    # Part of UTS 39, so must be downloaded separately from
+                    # unicode.org
                     UCD => 0,
                    ),
     Input_file->new('confusables.txt', v15.0.0,
@@ -19799,6 +19890,18 @@ my @input_file_objects = (
                     Skip => $Unused_Skip,
                     UCD => 0,
                    ),
+    Input_file->new('Unikemet.txt', v16.0.0,
+                    # For Egyptian Hieroglyphs; is in an alien format to the
+                    # other files Unicode furnishes.
+                    Skip => $Unused_Skip,
+                    UCD => 0,
+                   ),
+    Input_file->new('DoNotEmit.txt', v16.0.0,
+                    # Advice about characters that are unwise to create; not
+                    # any properties, though we could create some.
+                    Skip => $Unused_Skip,
+                    UCD => 0,
+                   ),
 );
 
 # End of all the preliminaries.
diff --git a/lib/unicore/uni_keywords.pl b/lib/unicore/uni_keywords.pl
index fe9034ecda6c..e2b540304542 100644
--- a/lib/unicore/uni_keywords.pl
+++ b/lib/unicore/uni_keywords.pl
@@ -1331,7 +1331,7 @@
 # 3f4f32ed2a577344a508114527e721d7a8b633d32f38945d47fe0c743650c585 lib/unicore/extracted/DLineBreak.txt
 # 710abf2d581ac9c57f244c0834f9d9969d9781e0396adccd330eaae658ac7d6b lib/unicore/extracted/DNumType.txt
 # 6bd30f385f3baf3ab5d5308c111a81de87bea5f494ba0ba69e8ab45263b8c34d lib/unicore/extracted/DNumValues.txt
-# 8968a5ee00063fa31ff15474b95ccb6b9c228e3ebad6c20bc77f4225187e2023 lib/unicore/mktables
+# 52af47e14e5de40ccba986bd59c6d8c863de93e3d231f7ecca62feb9c2b2990a lib/unicore/mktables
 # 55d90fdc3f902e5c0b16b3378f9eaa36e970a1c09723c33de7d47d0370044012 lib/unicore/version
 # 0a6b5ab33bb1026531f816efe81aea1a8ffcd34a27cbea37dd6a70a63d73c844 regen/charset_translations.pl
 # c7ff8e0d207d3538c7feb4a1a152b159e5e902d20293b303569ea8323e84633e regen/mk_PL_charclass.pl
diff --git a/regcharclass.h b/regcharclass.h
index 0b7b686598ea..80a19bbb870d 100644
--- a/regcharclass.h
+++ b/regcharclass.h
@@ -3850,7 +3850,7 @@
  * 3f4f32ed2a577344a508114527e721d7a8b633d32f38945d47fe0c743650c585 lib/unicore/extracted/DLineBreak.txt
  * 710abf2d581ac9c57f244c0834f9d9969d9781e0396adccd330eaae658ac7d6b lib/unicore/extracted/DNumType.txt
  * 6bd30f385f3baf3ab5d5308c111a81de87bea5f494ba0ba69e8ab45263b8c34d lib/unicore/extracted/DNumValues.txt
- * 8968a5ee00063fa31ff15474b95ccb6b9c228e3ebad6c20bc77f4225187e2023 lib/unicore/mktables
+ * 52af47e14e5de40ccba986bd59c6d8c863de93e3d231f7ecca62feb9c2b2990a lib/unicore/mktables
  * 55d90fdc3f902e5c0b16b3378f9eaa36e970a1c09723c33de7d47d0370044012 lib/unicore/version
  * 0a6b5ab33bb1026531f816efe81aea1a8ffcd34a27cbea37dd6a70a63d73c844 regen/charset_translations.pl
  * 2a984ef37eb37e718ed25d472988745196816f9147d6ee6822a8efeafda340e5 regen/regcharclass.pl
diff --git a/regexp_constants.h b/regexp_constants.h
index 38e727c60c90..0ae73255508d 100644
--- a/regexp_constants.h
+++ b/regexp_constants.h
@@ -78,7 +78,7 @@
  * 3f4f32ed2a577344a508114527e721d7a8b633d32f38945d47fe0c743650c585 lib/unicore/extracted/DLineBreak.txt
  * 710abf2d581ac9c57f244c0834f9d9969d9781e0396adccd330eaae658ac7d6b lib/unicore/extracted/DNumType.txt
  * 6bd30f385f3baf3ab5d5308c111a81de87bea5f494ba0ba69e8ab45263b8c34d lib/unicore/extracted/DNumValues.txt
- * 8968a5ee00063fa31ff15474b95ccb6b9c228e3ebad6c20bc77f4225187e2023 lib/unicore/mktables
+ * 52af47e14e5de40ccba986bd59c6d8c863de93e3d231f7ecca62feb9c2b2990a lib/unicore/mktables
  * 55d90fdc3f902e5c0b16b3378f9eaa36e970a1c09723c33de7d47d0370044012 lib/unicore/version
  * 0a6b5ab33bb1026531f816efe81aea1a8ffcd34a27cbea37dd6a70a63d73c844 regen/charset_translations.pl
  * c7ff8e0d207d3538c7feb4a1a152b159e5e902d20293b303569ea8323e84633e regen/mk_PL_charclass.pl
diff --git a/uni_keywords.h b/uni_keywords.h
index e013651e107a..a2ed6d97d10c 100644
--- a/uni_keywords.h
+++ b/uni_keywords.h
@@ -7756,7 +7756,7 @@ match_uniprop( const unsigned char * const key, const U16 key_len ) {
  * 3f4f32ed2a577344a508114527e721d7a8b633d32f38945d47fe0c743650c585 lib/unicore/extracted/DLineBreak.txt
  * 710abf2d581ac9c57f244c0834f9d9969d9781e0396adccd330eaae658ac7d6b lib/unicore/extracted/DNumType.txt
  * 6bd30f385f3baf3ab5d5308c111a81de87bea5f494ba0ba69e8ab45263b8c34d lib/unicore/extracted/DNumValues.txt
- * 8968a5ee00063fa31ff15474b95ccb6b9c228e3ebad6c20bc77f4225187e2023 lib/unicore/mktables
+ * 52af47e14e5de40ccba986bd59c6d8c863de93e3d231f7ecca62feb9c2b2990a lib/unicore/mktables
  * 55d90fdc3f902e5c0b16b3378f9eaa36e970a1c09723c33de7d47d0370044012 lib/unicore/version
  * 0a6b5ab33bb1026531f816efe81aea1a8ffcd34a27cbea37dd6a70a63d73c844 regen/charset_translations.pl
  * c7ff8e0d207d3538c7feb4a1a152b159e5e902d20293b303569ea8323e84633e regen/mk_PL_charclass.pl