diff --git a/unicodetools/data/idna/dev/IdnaMappingTable.txt b/unicodetools/data/idna/dev/IdnaMappingTable.txt
index 4cb6f5549..5d512ab3d 100644
--- a/unicodetools/data/idna/dev/IdnaMappingTable.txt
+++ b/unicodetools/data/idna/dev/IdnaMappingTable.txt
@@ -1,5 +1,5 @@
 # IdnaMappingTable.txt
-# Date: 2026-06-29, 15:25:07 GMT
+# Date: 2026-07-13, 16:40:43 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -8032,7 +8032,8 @@ FFFE..FFFF    ; disallowed                 # 1.1  <noncharacter-FFFE>..<nonchara
 1DF90..1DF94  ; valid                      # 18.0 LATIN SMALL LETTER C WITH LOW SLASH..LATIN SMALL LETTER R ROTUNDA WITH LOOP
 1DF95         ; mapped     ; 0073 0073     # 18.0 LATIN SMALL LIGATURE LONG S WITH DESCENDER S
 1DF96         ; valid                      # 18.0 LATIN SMALL LETTER LONG S WITH TOP LOOP
-1DF97..1DFCC  ; disallowed                 # NA   <reserved-1DF97>..<reserved-1DFCC>
+1DF97..1DFC8  ; disallowed                 # NA   <reserved-1DF97>..<reserved-1DFC8>
+1DFC9..1DFCC  ; valid      ;      ; NV8    # 18.0 MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD         ; mapped     ; 1DF57         # 18.0 MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK
 1DFCE         ; mapped     ; 1DF58         # 18.0 MODIFIER LETTER SMALL SPLIT O
 1DFCF         ; mapped     ; 1DF59         # 18.0 MODIFIER LETTER SMALL SPLIT U
diff --git a/unicodetools/data/linkification/dev/LinkTerm.txt b/unicodetools/data/linkification/dev/LinkTerm.txt
index ae10ea640..b1e97f1d2 100644
--- a/unicodetools/data/linkification/dev/LinkTerm.txt
+++ b/unicodetools/data/linkification/dev/LinkTerm.txt
@@ -1,5 +1,5 @@
 # LinkTerm.txt
-# Date: 2026-06-29, 15:25:13 GMT 
+# Date: 2026-07-13, 16:41:28 GMT 
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -1860,7 +1860,7 @@ FFFD          ; Include # 1.1       (�)  REPLACEMENT CHARACTER
 1DF25..1DF2A  ; Include # 15.0  [6] (𝼥..𝼪)  LATIN SMALL LETTER D WITH MID-HEIGHT LEFT HOOK..LATIN SMALL LETTER T WITH MID-HEIGHT LEFT HOOK
 1DF2B..1DF81  ; Include # 18.0 [87] (𝼫..𝾁)  LATIN SMALL LETTER DEZH DIGRAPH WITH CURL..LATIN CAPITAL LETTER E WITH BENT TOPBAR
 1DF90..1DF96  ; Include # 18.0  [7] (𝾐..𝾖)  LATIN SMALL LETTER C WITH LOW SLASH..LATIN SMALL LETTER LONG S WITH TOP LOOP
-1DFCD..1DFFF  ; Include # 18.0 [51] (𝿍..𝿿)  MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
+1DFC9..1DFFF  ; Include # 18.0 [55] (𝿉..𝿿)  MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1E000..1E006  ; Include # 9.0   [7] (𞀀..𞀆)  COMBINING GLAGOLITIC LETTER AZU..COMBINING GLAGOLITIC LETTER ZHIVETE
 1E008..1E018  ; Include # 9.0  [17] (𞀈..𞀘)  COMBINING GLAGOLITIC LETTER ZEMLJA..COMBINING GLAGOLITIC LETTER HERU
 1E01B..1E021  ; Include # 9.0   [7] (𞀛..𞀡)  COMBINING GLAGOLITIC LETTER SHTA..COMBINING GLAGOLITIC LETTER YATI
@@ -2205,5 +2205,5 @@ FFFD          ; Include # 1.1       (�)  REPLACEMENT CHARACTER
 E0020..E007F  ; Include # 3.1  [96] (U+E0020..U+E007F)  TAG SPACE..CANCEL TAG
 E0100..E01EF  ; Include # 4.0 [240] (U+E0100..U+E01EF)  VARIATION SELECTOR-17..VARIATION SELECTOR-256
 
-# Total code points: 172312
+# Total code points: 172316
 
diff --git a/unicodetools/data/ucd/dev/DerivedAge.txt b/unicodetools/data/ucd/dev/DerivedAge.txt
index 9b070318c..eba7a9bd2 100644
--- a/unicodetools/data/ucd/dev/DerivedAge.txt
+++ b/unicodetools/data/ucd/dev/DerivedAge.txt
@@ -1,5 +1,5 @@
 # DerivedAge-18.0.0.txt
-# Date: 2026-06-29, 15:24:58 GMT
+# Date: 2026-07-13, 16:40:34 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -2161,7 +2161,7 @@ AB6C..AB6D    ; 18.0 #   [2] LATIN CAPITAL LETTER SCRIPT R..LATIN CAPITAL LETTER
 1DF1F..1DF24  ; 18.0 #   [6] LATIN SMALL LETTER D-ETH DIGRAPH..LATIN SMALL LETTER T-THETA DIGRAPH
 1DF2B..1DF81  ; 18.0 #  [87] LATIN SMALL LETTER DEZH DIGRAPH WITH CURL..LATIN CAPITAL LETTER E WITH BENT TOPBAR
 1DF90..1DF96  ; 18.0 #   [7] LATIN SMALL LETTER C WITH LOW SLASH..LATIN SMALL LETTER LONG S WITH TOP LOOP
-1DFCD..1DFFF  ; 18.0 #  [51] MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
+1DFC9..1DFFF  ; 18.0 #  [55] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1F1AE         ; 18.0 #       TOMOBIKI SYMBOL
 1F6D9         ; 18.0 #       LIGHTHOUSE
 1F7DA..1F7DB  ; 18.0 #   [2] BLACK CIRCLE WITH WHITE VERTICAL BAR..BULLET IN DOUBLE CIRCLE
@@ -2174,6 +2174,6 @@ AB6C..AB6D    ; 18.0 #   [2] LATIN CAPITAL LETTER SCRIPT R..LATIN CAPITAL LETTER
 2B81E         ; 18.0 #       CJK UNIFIED IDEOGRAPH-2B81E
 3D000..3FC3F  ; 18.0 # [11328] SMALL SEAL CHARACTER-3D000..SMALL SEAL CHARACTER-3FC3F
 
-# Total code points: 13007
+# Total code points: 13011
 
 # EOF
diff --git a/unicodetools/data/ucd/dev/DerivedCoreProperties.txt b/unicodetools/data/ucd/dev/DerivedCoreProperties.txt
index 8fc2f009c..cc7cbb41a 100644
--- a/unicodetools/data/ucd/dev/DerivedCoreProperties.txt
+++ b/unicodetools/data/ucd/dev/DerivedCoreProperties.txt
@@ -1,5 +1,5 @@
 # DerivedCoreProperties-18.0.0.txt
-# Date: 2026-06-29, 15:25:01 GMT
+# Date: 2026-07-13, 16:40:37 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -3587,6 +3587,7 @@ FFF9..FFFB    ; Case_Ignorable # Cf   [3] INTERLINEAR ANNOTATION ANCHOR..INTERLI
 1DA84         ; Case_Ignorable # Mn       SIGNWRITING LOCATION HEAD NECK
 1DA9B..1DA9F  ; Case_Ignorable # Mn   [5] SIGNWRITING FILL MODIFIER-2..SIGNWRITING FILL MODIFIER-6
 1DAA1..1DAAF  ; Case_Ignorable # Mn  [15] SIGNWRITING ROTATION MODIFIER-2..SIGNWRITING ROTATION MODIFIER-16
+1DFC9..1DFCC  ; Case_Ignorable # Sk   [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD..1DFFF  ; Case_Ignorable # Lm  [51] MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1E000..1E006  ; Case_Ignorable # Mn   [7] COMBINING GLAGOLITIC LETTER AZU..COMBINING GLAGOLITIC LETTER ZHIVETE
 1E008..1E018  ; Case_Ignorable # Mn  [17] COMBINING GLAGOLITIC LETTER ZEMLJA..COMBINING GLAGOLITIC LETTER HERU
@@ -3615,7 +3616,7 @@ E0001         ; Case_Ignorable # Cf       LANGUAGE TAG
 E0020..E007F  ; Case_Ignorable # Cf  [96] TAG SPACE..CANCEL TAG
 E0100..E01EF  ; Case_Ignorable # Mn [240] VARIATION SELECTOR-17..VARIATION SELECTOR-256
 
-# Total code points: 2890
+# Total code points: 2894
 
 # ================================================
 
@@ -13102,6 +13103,7 @@ FFFC..FFFD    ; Grapheme_Base # So   [2] OBJECT REPLACEMENT CHARACTER..REPLACEME
 1DF0B..1DF7F  ; Grapheme_Base # L& [117] LATIN SMALL LETTER ESH WITH DOUBLE BAR..LATIN SMALL LETTER REVERSED U
 1DF80..1DF81  ; Grapheme_Base # Lo   [2] LATIN CAPITAL LETTER A WITH TOPBAR..LATIN CAPITAL LETTER E WITH BENT TOPBAR
 1DF90..1DF96  ; Grapheme_Base # L&   [7] LATIN SMALL LETTER C WITH LOW SLASH..LATIN SMALL LETTER LONG S WITH TOP LOOP
+1DFC9..1DFCC  ; Grapheme_Base # Sk   [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD..1DFFF  ; Grapheme_Base # Lm  [51] MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1E030..1E06D  ; Grapheme_Base # Lm  [62] MODIFIER LETTER CYRILLIC SMALL A..MODIFIER LETTER CYRILLIC SMALL STRAIGHT U WITH STROKE
 1E100..1E12C  ; Grapheme_Base # Lo  [45] NYIAKENG PUACHUE HMONG LETTER MA..NYIAKENG PUACHUE HMONG LETTER W
@@ -13229,7 +13231,7 @@ FFFC..FFFD    ; Grapheme_Base # So   [2] OBJECT REPLACEMENT CHARACTER..REPLACEME
 31350..33479  ; Grapheme_Base # Lo [8490] CJK UNIFIED IDEOGRAPH-31350..CJK UNIFIED IDEOGRAPH-33479
 3D000..3FC3F  ; Grapheme_Base # Lo [11328] SMALL SEAL CHARACTER-3D000..SMALL SEAL CHARACTER-3FC3F
 
-# Total code points: 170464
+# Total code points: 170468
 
 # ================================================
 
diff --git a/unicodetools/data/ucd/dev/EastAsianWidth.txt b/unicodetools/data/ucd/dev/EastAsianWidth.txt
index cfb34b1f0..c4859461a 100644
--- a/unicodetools/data/ucd/dev/EastAsianWidth.txt
+++ b/unicodetools/data/ucd/dev/EastAsianWidth.txt
@@ -1,5 +1,5 @@
 # EastAsianWidth-18.0.0.txt
-# Date: 2026-06-29, 15:25:05 GMT
+# Date: 2026-07-13, 16:40:41 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -2519,6 +2519,7 @@ FFFD           ; A  # So         REPLACEMENT CHARACTER
 1DF0B..1DF7F   ; N  # L&   [117] LATIN SMALL LETTER ESH WITH DOUBLE BAR..LATIN SMALL LETTER REVERSED U
 1DF80..1DF81   ; N  # Lo     [2] LATIN CAPITAL LETTER A WITH TOPBAR..LATIN CAPITAL LETTER E WITH BENT TOPBAR
 1DF90..1DF96   ; N  # Ll     [7] LATIN SMALL LETTER C WITH LOW SLASH..LATIN SMALL LETTER LONG S WITH TOP LOOP
+1DFC9..1DFCC   ; N  # Sk     [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD..1DFFF   ; N  # Lm    [51] MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1E000..1E006   ; N  # Mn     [7] COMBINING GLAGOLITIC LETTER AZU..COMBINING GLAGOLITIC LETTER ZHIVETE
 1E008..1E018   ; N  # Mn    [17] COMBINING GLAGOLITIC LETTER ZEMLJA..COMBINING GLAGOLITIC LETTER HERU
diff --git a/unicodetools/data/ucd/dev/LineBreak.txt b/unicodetools/data/ucd/dev/LineBreak.txt
index ad276b8d5..f7a14d609 100644
--- a/unicodetools/data/ucd/dev/LineBreak.txt
+++ b/unicodetools/data/ucd/dev/LineBreak.txt
@@ -1,5 +1,5 @@
 # LineBreak-18.0.0.txt
-# Date: 2026-06-29, 15:25:08 GMT
+# Date: 2026-07-13, 16:35:38 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -3430,6 +3430,7 @@ FFFD           ; AI # So         REPLACEMENT CHARACTER
 1DF0B..1DF7F   ; AL # L&   [117] LATIN SMALL LETTER ESH WITH DOUBLE BAR..LATIN SMALL LETTER REVERSED U
 1DF80..1DF81   ; AL # Lo     [2] LATIN CAPITAL LETTER A WITH TOPBAR..LATIN CAPITAL LETTER E WITH BENT TOPBAR
 1DF90..1DF96   ; AL # Ll     [7] LATIN SMALL LETTER C WITH LOW SLASH..LATIN SMALL LETTER LONG S WITH TOP LOOP
+1DFC9..1DFCC   ; AL # Sk     [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD..1DFFF   ; AL # Lm    [51] MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1E000..1E006   ; CM # Mn     [7] COMBINING GLAGOLITIC LETTER AZU..COMBINING GLAGOLITIC LETTER ZHIVETE
 1E008..1E018   ; CM # Mn    [17] COMBINING GLAGOLITIC LETTER ZEMLJA..COMBINING GLAGOLITIC LETTER HERU
diff --git a/unicodetools/data/ucd/dev/PropList.txt b/unicodetools/data/ucd/dev/PropList.txt
index 21c2d70ac..5a44b117c 100644
--- a/unicodetools/data/ucd/dev/PropList.txt
+++ b/unicodetools/data/ucd/dev/PropList.txt
@@ -1,5 +1,5 @@
 # PropList-18.0.0.txt
-# Date: 2026-06-29, 15:25:16 GMT
+# Date: 2026-07-13, 16:57:13 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -1173,6 +1173,7 @@ FFE3          ; Diacritic # Sk       FULLWIDTH MACRON
 1D1AA..1D1AD  ; Diacritic # Mn   [4] MUSICAL SYMBOL COMBINING DOWN BOW..MUSICAL SYMBOL COMBINING SNAP PIZZICATO
 1D250..1D252  ; Diacritic # Mc   [3] MUSICAL SYMBOL COMBINING FLAG-6..MUSICAL SYMBOL COMBINING FLAG-8
 1D25B..1D25C  ; Diacritic # Mn   [2] MUSICAL SYMBOL COMBINING TREMOLO-4..MUSICAL SYMBOL COMBINING TREMOLO-5
+1DFC9..1DFCC  ; Diacritic # Sk   [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD..1DFCF  ; Diacritic # Lm   [3] MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL SPLIT U
 1DFD1..1DFFF  ; Diacritic # Lm  [47] MODIFIER LETTER SMALL CAPITAL P..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1E030..1E06D  ; Diacritic # Lm  [62] MODIFIER LETTER CYRILLIC SMALL A..MODIFIER LETTER CYRILLIC SMALL STRAIGHT U WITH STROKE
@@ -1184,7 +1185,7 @@ FFE3          ; Diacritic # Sk       FULLWIDTH MACRON
 1E944..1E946  ; Diacritic # Mn   [3] ADLAM ALIF LENGTHENER..ADLAM GEMINATION MARK
 1E948..1E94A  ; Diacritic # Mn   [3] ADLAM CONSONANT MODIFIER..ADLAM NUKTA
 
-# Total code points: 1334
+# Total code points: 1338
 
 # ================================================
 
diff --git a/unicodetools/data/ucd/dev/Scripts.txt b/unicodetools/data/ucd/dev/Scripts.txt
index 56d341fce..3159b327b 100644
--- a/unicodetools/data/ucd/dev/Scripts.txt
+++ b/unicodetools/data/ucd/dev/Scripts.txt
@@ -1,5 +1,5 @@
 # Scripts-18.0.0.txt
-# Date: 2026-06-29, 15:25:26 GMT
+# Date: 2026-07-13, 16:41:01 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -597,6 +597,7 @@ FFFC..FFFD    ; Common # So   [2] OBJECT REPLACEMENT CHARACTER..REPLACEMENT CHAR
 1D7C4..1D7CB  ; Common # L&   [8] MATHEMATICAL SANS-SERIF BOLD ITALIC EPSILON SYMBOL..MATHEMATICAL BOLD SMALL DIGAMMA
 1D7CE..1D7FF  ; Common # Nd  [50] MATHEMATICAL BOLD DIGIT ZERO..MATHEMATICAL MONOSPACE DIGIT NINE
 1DB00..1DB1C  ; Common # Sm  [29] LEIBNIZIAN EQUALS SIGN..FACIT SYMBOL
+1DFC9..1DFCC  ; Common # Sk   [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1EC71..1ECAB  ; Common # No  [59] INDIC SIYAQ NUMBER ONE..INDIC SIYAQ NUMBER PREFIXED NINE
 1ECAC         ; Common # So       INDIC SIYAQ PLACEHOLDER
 1ECAD..1ECAF  ; Common # No   [3] INDIC SIYAQ FRACTION ONE QUARTER..INDIC SIYAQ FRACTION THREE QUARTERS
@@ -649,7 +650,7 @@ FFFC..FFFD    ; Common # So   [2] OBJECT REPLACEMENT CHARACTER..REPLACEMENT CHAR
 E0001         ; Common # Cf       LANGUAGE TAG
 E0020..E007F  ; Common # Cf  [96] TAG SPACE..CANCEL TAG
 
-# Total code points: 9276
+# Total code points: 9280
 
 # ================================================
 
diff --git a/unicodetools/data/ucd/dev/UnicodeData.txt b/unicodetools/data/ucd/dev/UnicodeData.txt
index ebccf021c..942fb67dc 100644
--- a/unicodetools/data/ucd/dev/UnicodeData.txt
+++ b/unicodetools/data/ucd/dev/UnicodeData.txt
@@ -36719,6 +36719,10 @@ FFFD;REPLACEMENT CHARACTER;So;0;ON;;;;;N;;;;;
 1DF94;LATIN SMALL LETTER R ROTUNDA WITH LOOP;Ll;0;L;;;;;N;;;;;
 1DF95;LATIN SMALL LIGATURE LONG S WITH DESCENDER S;Ll;0;L;<compat> 00DF;;;;N;;;;;
 1DF96;LATIN SMALL LETTER LONG S WITH TOP LOOP;Ll;0;L;;;;;N;;;;;
+1DFC9;MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD;Sk;0;ON;;;;;N;;;;;
+1DFCA;MODIFIER LETTER RIGHT ARROWHEAD OVER UP ARROWHEAD;Sk;0;ON;;;;;N;;;;;
+1DFCB;MODIFIER LETTER LEFT ARROWHEAD OVER DOWN ARROWHEAD;Sk;0;ON;;;;;N;;;;;
+1DFCC;MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD;Sk;0;ON;;;;;N;;;;;
 1DFCD;MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK;Lm;0;L;<super> 1DF57;;;;N;;;;;
 1DFCE;MODIFIER LETTER SMALL SPLIT O;Lm;0;L;<super> 1DF58;;;;N;;;;;
 1DFCF;MODIFIER LETTER SMALL SPLIT U;Lm;0;L;<super> 1DF59;;;;N;;;;;
diff --git a/unicodetools/data/ucd/dev/VerticalOrientation.txt b/unicodetools/data/ucd/dev/VerticalOrientation.txt
index 300a67c3e..fc3ebacef 100644
--- a/unicodetools/data/ucd/dev/VerticalOrientation.txt
+++ b/unicodetools/data/ucd/dev/VerticalOrientation.txt
@@ -1,5 +1,5 @@
 # VerticalOrientation-18.0.0.txt
-# Date: 2026-06-29, 15:25:28 GMT
+# Date: 2026-07-13, 16:41:03 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -2384,6 +2384,7 @@ FFFC..FFFD     ; U  # So     [2] OBJECT REPLACEMENT CHARACTER..REPLACEMENT CHARA
 1DF0B..1DF7F   ; R  # L&   [117] LATIN SMALL LETTER ESH WITH DOUBLE BAR..LATIN SMALL LETTER REVERSED U
 1DF80..1DF81   ; R  # Lo     [2] LATIN CAPITAL LETTER A WITH TOPBAR..LATIN CAPITAL LETTER E WITH BENT TOPBAR
 1DF90..1DF96   ; R  # Ll     [7] LATIN SMALL LETTER C WITH LOW SLASH..LATIN SMALL LETTER LONG S WITH TOP LOOP
+1DFC9..1DFCC   ; R  # Sk     [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD..1DFFF   ; R  # Lm    [51] MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1E000..1E006   ; R  # Mn     [7] COMBINING GLAGOLITIC LETTER AZU..COMBINING GLAGOLITIC LETTER ZHIVETE
 1E008..1E018   ; R  # Mn    [17] COMBINING GLAGOLITIC LETTER ZEMLJA..COMBINING GLAGOLITIC LETTER HERU
diff --git a/unicodetools/data/ucd/dev/auxiliary/WordBreakProperty.txt b/unicodetools/data/ucd/dev/auxiliary/WordBreakProperty.txt
index 313ae91aa..16d67d913 100644
--- a/unicodetools/data/ucd/dev/auxiliary/WordBreakProperty.txt
+++ b/unicodetools/data/ucd/dev/auxiliary/WordBreakProperty.txt
@@ -1,5 +1,5 @@
 # WordBreakProperty-18.0.0.txt
-# Date: 2026-06-29, 15:25:28 GMT
+# Date: 2026-07-13, 17:11:16 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -1334,6 +1334,7 @@ FFDA..FFDC    ; ALetter # Lo   [3] HALFWIDTH HANGUL LETTER EU..HALFWIDTH HANGUL
 1DF0B..1DF7F  ; ALetter # L& [117] LATIN SMALL LETTER ESH WITH DOUBLE BAR..LATIN SMALL LETTER REVERSED U
 1DF80..1DF81  ; ALetter # Lo   [2] LATIN CAPITAL LETTER A WITH TOPBAR..LATIN CAPITAL LETTER E WITH BENT TOPBAR
 1DF90..1DF96  ; ALetter # L&   [7] LATIN SMALL LETTER C WITH LOW SLASH..LATIN SMALL LETTER LONG S WITH TOP LOOP
+1DFC9..1DFCC  ; ALetter # Sk   [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD..1DFFF  ; ALetter # Lm  [51] MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1E030..1E06D  ; ALetter # Lm  [62] MODIFIER LETTER CYRILLIC SMALL A..MODIFIER LETTER CYRILLIC SMALL STRAIGHT U WITH STROKE
 1E100..1E12C  ; ALetter # Lo  [45] NYIAKENG PUACHUE HMONG LETTER MA..NYIAKENG PUACHUE HMONG LETTER W
@@ -1396,7 +1397,7 @@ FFDA..FFDC    ; ALetter # Lo   [3] HALFWIDTH HANGUL LETTER EU..HALFWIDTH HANGUL
 1F150..1F169  ; ALetter # So  [26] NEGATIVE CIRCLED LATIN CAPITAL LETTER A..NEGATIVE CIRCLED LATIN CAPITAL LETTER Z
 1F170..1F189  ; ALetter # So  [26] NEGATIVE SQUARED LATIN CAPITAL LETTER A..NEGATIVE SQUARED LATIN CAPITAL LETTER Z
 
-# Total code points: 34488
+# Total code points: 34492
 
 # ================================================
 
diff --git a/unicodetools/data/ucd/dev/extracted/DerivedBidiClass.txt b/unicodetools/data/ucd/dev/extracted/DerivedBidiClass.txt
index 4c000933e..0c74d4b41 100644
--- a/unicodetools/data/ucd/dev/extracted/DerivedBidiClass.txt
+++ b/unicodetools/data/ucd/dev/extracted/DerivedBidiClass.txt
@@ -1,5 +1,5 @@
 # DerivedBidiClass-18.0.0.txt
-# Date: 2026-07-02, 16:50:27 GMT
+# Date: 2026-07-13, 16:40:36 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -1253,8 +1253,8 @@ FFDA..FFDC    ; L # Lo   [3] HALFWIDTH HANGUL LETTER EU..HALFWIDTH HANGUL LETTER
 F0000..FFFFD  ; L # Co [65534] <private-use-F0000>..<private-use-FFFFD>
 100000..10FFFD; L # Co [65534] <private-use-100000>..<private-use-10FFFD>
 
-# The above property value applies to 797652 code points not listed here.
-# Total code points: 1095318
+# The above property value applies to 797648 code points not listed here.
+# Total code points: 1095314
 
 # ================================================
 
@@ -2011,6 +2011,7 @@ FFFC..FFFD    ; ON # So   [2] OBJECT REPLACEMENT CHARACTER..REPLACEMENT CHARACTE
 1D7A9         ; ON # Sm       MATHEMATICAL SANS-SERIF BOLD ITALIC NABLA
 1D7C3         ; ON # Sm       MATHEMATICAL SANS-SERIF BOLD ITALIC PARTIAL DIFFERENTIAL
 1DB00..1DB1C  ; ON # Sm  [29] LEIBNIZIAN EQUALS SIGN..FACIT SYMBOL
+1DFC9..1DFCC  ; ON # Sk   [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1EEF0..1EEF1  ; ON # Sm   [2] ARABIC MATHEMATICAL OPERATOR MEEM WITH HAH WITH TATWEEL..ARABIC MATHEMATICAL OPERATOR HAH WITH DAL
 1F000..1F02B  ; ON # So  [44] MAHJONG TILE EAST WIND..MAHJONG TILE BACK
 1F030..1F093  ; ON # So [100] DOMINO TILE HORIZONTAL BACK..DOMINO TILE VERTICAL-06-06
@@ -2052,7 +2053,7 @@ FFFC..FFFD    ; ON # So   [2] OBJECT REPLACEMENT CHARACTER..REPLACEMENT CHARACTE
 1FB94..1FBEF  ; ON # So  [92] LEFT HALF INVERSE MEDIUM SHADE AND RIGHT HALF BLOCK..TOP LEFT JUSTIFIED LOWER RIGHT QUARTER BLACK CIRCLE
 1FBFA         ; ON # So       ALARM BELL SYMBOL
 
-# Total code points: 6932
+# Total code points: 6936
 
 # ================================================
 
diff --git a/unicodetools/data/ucd/dev/extracted/DerivedCombiningClass.txt b/unicodetools/data/ucd/dev/extracted/DerivedCombiningClass.txt
index 63e0b2f06..159b7f9cd 100644
--- a/unicodetools/data/ucd/dev/extracted/DerivedCombiningClass.txt
+++ b/unicodetools/data/ucd/dev/extracted/DerivedCombiningClass.txt
@@ -1,5 +1,5 @@
 # DerivedCombiningClass-18.0.0.txt
-# Date: 2026-06-29, 15:25:00 GMT
+# Date: 2026-07-13, 16:40:36 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -1978,6 +1978,7 @@ FFFC..FFFD    ; 0 # So   [2] OBJECT REPLACEMENT CHARACTER..REPLACEMENT CHARACTER
 1DF0B..1DF7F  ; 0 # L& [117] LATIN SMALL LETTER ESH WITH DOUBLE BAR..LATIN SMALL LETTER REVERSED U
 1DF80..1DF81  ; 0 # Lo   [2] LATIN CAPITAL LETTER A WITH TOPBAR..LATIN CAPITAL LETTER E WITH BENT TOPBAR
 1DF90..1DF96  ; 0 # L&   [7] LATIN SMALL LETTER C WITH LOW SLASH..LATIN SMALL LETTER LONG S WITH TOP LOOP
+1DFC9..1DFCC  ; 0 # Sk   [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD..1DFFF  ; 0 # Lm  [51] MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1E030..1E06D  ; 0 # Lm  [62] MODIFIER LETTER CYRILLIC SMALL A..MODIFIER LETTER CYRILLIC SMALL STRAIGHT U WITH STROKE
 1E100..1E12C  ; 0 # Lo  [45] NYIAKENG PUACHUE HMONG LETTER MA..NYIAKENG PUACHUE HMONG LETTER W
@@ -2110,7 +2111,7 @@ E0100..E01EF  ; 0 # Mn [240] VARIATION SELECTOR-17..VARIATION SELECTOR-256
 F0000..FFFFD  ; 0 # Co [65534] <private-use-F0000>..<private-use-FFFFD>
 100000..10FFFD; 0 # Co [65534] <private-use-100000>..<private-use-10FFFD>
 
-# The above property value applies to 803771 code points not listed here.
+# The above property value applies to 803767 code points not listed here.
 # Total code points: 1113110
 
 # ================================================
diff --git a/unicodetools/data/ucd/dev/extracted/DerivedEastAsianWidth.txt b/unicodetools/data/ucd/dev/extracted/DerivedEastAsianWidth.txt
index 6e450c173..aa3254a6c 100644
--- a/unicodetools/data/ucd/dev/extracted/DerivedEastAsianWidth.txt
+++ b/unicodetools/data/ucd/dev/extracted/DerivedEastAsianWidth.txt
@@ -1,5 +1,5 @@
 # DerivedEastAsianWidth-18.0.0.txt
-# Date: 2026-06-29, 15:25:02 GMT
+# Date: 2026-07-13, 16:40:38 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -2011,6 +2011,7 @@ FFFC          ; N # So       OBJECT REPLACEMENT CHARACTER
 1DF0B..1DF7F  ; N # L& [117] LATIN SMALL LETTER ESH WITH DOUBLE BAR..LATIN SMALL LETTER REVERSED U
 1DF80..1DF81  ; N # Lo   [2] LATIN CAPITAL LETTER A WITH TOPBAR..LATIN CAPITAL LETTER E WITH BENT TOPBAR
 1DF90..1DF96  ; N # L&   [7] LATIN SMALL LETTER C WITH LOW SLASH..LATIN SMALL LETTER LONG S WITH TOP LOOP
+1DFC9..1DFCC  ; N # Sk   [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD..1DFFF  ; N # Lm  [51] MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1E000..1E006  ; N # Mn   [7] COMBINING GLAGOLITIC LETTER AZU..COMBINING GLAGOLITIC LETTER ZHIVETE
 1E008..1E018  ; N # Mn  [17] COMBINING GLAGOLITIC LETTER ZEMLJA..COMBINING GLAGOLITIC LETTER HERU
@@ -2163,7 +2164,7 @@ FFFC          ; N # So       OBJECT REPLACEMENT CHARACTER
 E0001         ; N # Cf       LANGUAGE TAG
 E0020..E007F  ; N # Cf  [96] TAG SPACE..CANCEL TAG
 
-# The above property value applies to 758934 code points not listed here.
+# The above property value applies to 758930 code points not listed here.
 # Total code points: 791273
 
 # ================================================
diff --git a/unicodetools/data/ucd/dev/extracted/DerivedGeneralCategory.txt b/unicodetools/data/ucd/dev/extracted/DerivedGeneralCategory.txt
index 647bc7c08..6d617e971 100644
--- a/unicodetools/data/ucd/dev/extracted/DerivedGeneralCategory.txt
+++ b/unicodetools/data/ucd/dev/extracted/DerivedGeneralCategory.txt
@@ -1,5 +1,5 @@
 # DerivedGeneralCategory-18.0.0.txt
-# Date: 2026-06-29, 15:25:02 GMT
+# Date: 2026-07-13, 16:40:38 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -635,7 +635,7 @@ FFFE..FFFF    ; Cn #   [2] <noncharacter-FFFE>..<noncharacter-FFFF>
 1DAB0..1DAFF  ; Cn #  [80] <reserved-1DAB0>..<reserved-1DAFF>
 1DB1D..1DEFF  ; Cn # [995] <reserved-1DB1D>..<reserved-1DEFF>
 1DF82..1DF8F  ; Cn #  [14] <reserved-1DF82>..<reserved-1DF8F>
-1DF97..1DFCC  ; Cn #  [54] <reserved-1DF97>..<reserved-1DFCC>
+1DF97..1DFC8  ; Cn #  [50] <reserved-1DF97>..<reserved-1DFC8>
 1E007         ; Cn #       <reserved-1E007>
 1E019..1E01A  ; Cn #   [2] <reserved-1E019>..<reserved-1E01A>
 1E022         ; Cn #       <reserved-1E022>
@@ -751,7 +751,7 @@ E01F0..EFFFF  ; Cn # [65040] <reserved-E01F0>..<noncharacter-EFFFF>
 FFFFE..FFFFF  ; Cn #   [2] <noncharacter-FFFFE>..<noncharacter-FFFFF>
 10FFFE..10FFFF; Cn #   [2] <noncharacter-10FFFE>..<noncharacter-10FFFF>
 
-# Total code points: 801723
+# Total code points: 801719
 
 # ================================================
 
@@ -4183,9 +4183,10 @@ FF3E          ; Sk #       FULLWIDTH CIRCUMFLEX ACCENT
 FF40          ; Sk #       FULLWIDTH GRAVE ACCENT
 FFE3          ; Sk #       FULLWIDTH MACRON
 10EC9..10ECA  ; Sk #   [2] ARABIC SMALL BASELINE FATHA..ARABIC SMALL BASELINE DOTLESS HEAD OF KHAH
+1DFC9..1DFCC  ; Sk #   [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1F3FB..1F3FF  ; Sk #   [5] EMOJI MODIFIER FITZPATRICK TYPE-1-2..EMOJI MODIFIER FITZPATRICK TYPE-6
 
-# Total code points: 127
+# Total code points: 131
 
 # ================================================
 
diff --git a/unicodetools/data/ucd/dev/extracted/DerivedLineBreak.txt b/unicodetools/data/ucd/dev/extracted/DerivedLineBreak.txt
index 06abb1fb6..721fe5e70 100644
--- a/unicodetools/data/ucd/dev/extracted/DerivedLineBreak.txt
+++ b/unicodetools/data/ucd/dev/extracted/DerivedLineBreak.txt
@@ -1,5 +1,5 @@
 # DerivedLineBreak-18.0.0.txt
-# Date: 2026-06-29, 15:25:03 GMT
+# Date: 2026-07-13, 16:40:39 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -71,8 +71,8 @@ E000..F8FF    ; XX # Co [6400] <private-use-E000>..<private-use-F8FF>
 F0000..FFFFD  ; XX # Co [65534] <private-use-F0000>..<private-use-FFFFD>
 100000..10FFFD; XX # Co [65534] <private-use-100000>..<private-use-10FFFD>
 
-# The above property value applies to 755534 code points not listed here.
-# Total code points: 893002
+# The above property value applies to 755530 code points not listed here.
+# Total code points: 892998
 
 # ================================================
 
@@ -1553,6 +1553,7 @@ FFED..FFEE    ; AL # So   [2] HALFWIDTH BLACK SQUARE..HALFWIDTH WHITE CIRCLE
 1DF0B..1DF7F  ; AL # L& [117] LATIN SMALL LETTER ESH WITH DOUBLE BAR..LATIN SMALL LETTER REVERSED U
 1DF80..1DF81  ; AL # Lo   [2] LATIN CAPITAL LETTER A WITH TOPBAR..LATIN CAPITAL LETTER E WITH BENT TOPBAR
 1DF90..1DF96  ; AL # L&   [7] LATIN SMALL LETTER C WITH LOW SLASH..LATIN SMALL LETTER LONG S WITH TOP LOOP
+1DFC9..1DFCC  ; AL # Sk   [4] MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD..MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD..1DFFF  ; AL # Lm  [51] MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK..MODIFIER LETTER SMALL T WITH HOOK AND RETROFLEX HOOK
 1E030..1E06D  ; AL # Lm  [62] MODIFIER LETTER CYRILLIC SMALL A..MODIFIER LETTER CYRILLIC SMALL STRAIGHT U WITH STROKE
 1E100..1E12C  ; AL # Lo  [45] NYIAKENG PUACHUE HMONG LETTER MA..NYIAKENG PUACHUE HMONG LETTER W
@@ -1657,7 +1658,7 @@ FFED..FFEE    ; AL # So   [2] HALFWIDTH BLACK SQUARE..HALFWIDTH WHITE CIRCLE
 1FB94..1FBEF  ; AL # So  [92] LEFT HALF INVERSE MEDIUM SHADE AND RIGHT HALF BLOCK..TOP LEFT JUSTIFIED LOWER RIGHT QUARTER BLACK CIRCLE
 1FBFA         ; AL # So       ALARM BELL SYMBOL
 
-# Total code points: 27586
+# Total code points: 27590
 
 # ================================================
 
diff --git a/unicodetools/data/ucd/dev/extracted/DerivedName.txt b/unicodetools/data/ucd/dev/extracted/DerivedName.txt
index ff18343a5..508937146 100644
--- a/unicodetools/data/ucd/dev/extracted/DerivedName.txt
+++ b/unicodetools/data/ucd/dev/extracted/DerivedName.txt
@@ -1,5 +1,5 @@
 # DerivedName-18.0.0.txt
-# Date: 2026-06-29, 15:25:03 GMT
+# Date: 2026-07-13, 16:40:39 GMT
 # © 2026 Unicode®, Inc.
 # Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the U.S. and other countries.
 # For terms of use and license, see https://www.unicode.org/terms_of_use.html
@@ -42518,6 +42518,10 @@ FFFD          ; REPLACEMENT CHARACTER
 1DF94         ; LATIN SMALL LETTER R ROTUNDA WITH LOOP
 1DF95         ; LATIN SMALL LIGATURE LONG S WITH DESCENDER S
 1DF96         ; LATIN SMALL LETTER LONG S WITH TOP LOOP
+1DFC9         ; MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD
+1DFCA         ; MODIFIER LETTER RIGHT ARROWHEAD OVER UP ARROWHEAD
+1DFCB         ; MODIFIER LETTER LEFT ARROWHEAD OVER DOWN ARROWHEAD
+1DFCC         ; MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD
 1DFCD         ; MODIFIER LETTER SMALL TURNED R WITH MID-HEIGHT LEFT HOOK
 1DFCE         ; MODIFIER LETTER SMALL SPLIT O
 1DFCF         ; MODIFIER LETTER SMALL SPLIT U
@@ -46582,6 +46586,6 @@ E01ED         ; VARIATION SELECTOR-254
 E01EE         ; VARIATION SELECTOR-255
 E01EF         ; VARIATION SELECTOR-256
 
-# Total code points: 172808
+# Total code points: 172812
 
 # EOF
diff --git a/unicodetools/src/main/java/org/unicode/text/UCD/ToolUnicodePropertySource.java b/unicodetools/src/main/java/org/unicode/text/UCD/ToolUnicodePropertySource.java
index 64406ed2a..1aecbdf74 100644
--- a/unicodetools/src/main/java/org/unicode/text/UCD/ToolUnicodePropertySource.java
+++ b/unicodetools/src/main/java/org/unicode/text/UCD/ToolUnicodePropertySource.java
@@ -1336,7 +1336,8 @@ public int getMaxWidth(boolean isShort) {
                             // 175-C24.
                             .add(0x070F)
                             // https://github.com/unicode-org/properties/issues/400.
-                            .add(0x00B8),
+                            .add(0x00B8)
+                            .add(new UnicodeSet("[\\x{1DFC9}-\\x{1DFCC}]")),
                     "ALetter");
             unicodeMap.putAll(
                     new UnicodeSet("[\\u00B7\\u0387\\u05F4\\u2027\\u003A\\uFE13\\uFE55\\uFF1A]"),
diff --git a/unicodetools/src/main/resources/org/unicode/text/UCD/AdditionComparisons/233.txt b/unicodetools/src/main/resources/org/unicode/text/UCD/AdditionComparisons/233.txt
new file mode 100644
index 000000000..8eaaa53c1
--- /dev/null
+++ b/unicodetools/src/main/resources/org/unicode/text/UCD/AdditionComparisons/233.txt
@@ -0,0 +1,58 @@
+# IPA: 4 Modifier Letter stacked arrowheads (1DFC9..1DFCC)
+# https://github.com/unicode-org/utc-release-management/issues/233
+
+# Names always differ.
+# Age always differs since these tests are comparing additions to pre-existing characters.
+Ignoring Name Age:
+
+# Ignore the security and IDNA properties. These are not part of the UCD, and
+# are typically prepared just before β, after these tests are written (which is
+# normally anywhere between proposal submission and the start of α).
+Ignoring Confusable_MA Identifier_Status Identifier_Type Idn_Status Idn_Mapping Idn_2008 IDNA2008_Category:
+
+Ignoring Block East_Asian_Width:
+Propertywise [
+  \x{1DFC9}   \N{MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD}
+  \x{1DFCA}   \N{MODIFIER LETTER RIGHT ARROWHEAD OVER UP ARROWHEAD}
+  \x{1DFCB}   \N{MODIFIER LETTER LEFT ARROWHEAD OVER DOWN ARROWHEAD}
+  \x{1DFCC}   \N{MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD}
+   \x{02C2} ˂ \N{MODIFIER LETTER LEFT ARROWHEAD}
+   \x{02C3} ˃ \N{MODIFIER LETTER RIGHT ARROWHEAD}
+   \x{02C4} ˄ \N{MODIFIER LETTER UP ARROWHEAD}
+   \x{02C5} ˅ \N{MODIFIER LETTER DOWN ARROWHEAD}
+   \x{02EF} ˯ \N{MODIFIER LETTER LOW DOWN ARROWHEAD}
+   \x{02F0} ˰ \N{MODIFIER LETTER LOW UP ARROWHEAD}
+   \x{02F1} ˱ \N{MODIFIER LETTER LOW LEFT ARROWHEAD}
+   \x{02F2} ˲ \N{MODIFIER LETTER LOW RIGHT ARROWHEAD}
+] AreAlike
+end Ignoring;
+
+Ignoring Block:
+Propertywise [
+  \x{1DFC9}   \N{MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD}
+  \x{1DFCA}   \N{MODIFIER LETTER RIGHT ARROWHEAD OVER UP ARROWHEAD}
+  \x{1DFCB}   \N{MODIFIER LETTER LEFT ARROWHEAD OVER DOWN ARROWHEAD}
+  \x{1DFCC}   \N{MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD}
+   \x{02C2} ˂ \N{MODIFIER LETTER LEFT ARROWHEAD}
+   \x{02C3} ˃ \N{MODIFIER LETTER RIGHT ARROWHEAD}
+   \x{02C5} ˅ \N{MODIFIER LETTER DOWN ARROWHEAD}
+   \x{02EF} ˯ \N{MODIFIER LETTER LOW DOWN ARROWHEAD}
+   \x{02F0} ˰ \N{MODIFIER LETTER LOW UP ARROWHEAD}
+   \x{02F1} ˱ \N{MODIFIER LETTER LOW LEFT ARROWHEAD}
+   \x{02F2} ˲ \N{MODIFIER LETTER LOW RIGHT ARROWHEAD}
+] AreAlike
+end Ignoring;
+
+Propertywise [
+  \x{1DFC9}   \N{MODIFIER LETTER LEFT ARROWHEAD OVER UP ARROWHEAD}
+  \x{1DFCA}   \N{MODIFIER LETTER RIGHT ARROWHEAD OVER UP ARROWHEAD}
+  \x{1DFCB}   \N{MODIFIER LETTER LEFT ARROWHEAD OVER DOWN ARROWHEAD}
+  \x{1DFCC}   \N{MODIFIER LETTER RIGHT ARROWHEAD OVER DOWN ARROWHEAD}
+] CorrespondTo [
+   \x{02C4} ˄ \N{MODIFIER LETTER UP ARROWHEAD}
+] UpTo: Block            (Latin_Extended_G vs Spacing_Modifier_Letters),
+        East_Asian_Width (Neutral          vs Ambiguous)
+
+end Ignoring;
+
+end Ignoring;
\ No newline at end of file
diff --git a/unicodetools/src/main/resources/org/unicode/text/UCD/UnicodeInvariantTest.txt b/unicodetools/src/main/resources/org/unicode/text/UCD/UnicodeInvariantTest.txt
index 28e9ee946..fea0393af 100644
--- a/unicodetools/src/main/resources/org/unicode/text/UCD/UnicodeInvariantTest.txt
+++ b/unicodetools/src/main/resources/org/unicode/text/UCD/UnicodeInvariantTest.txt
@@ -948,9 +948,12 @@ $SAScriptExceptions ∥ [\p{Alphabetic} \p{gc=cf} \p{gc=Mn}]
 # Warning: the uax31 tables don't have machine-readable tables, so must be updated each release.
 Let $uax31table3 := [\u0027\u002D\u002E\u003A\u00B7\u058A\u05F3\u05F4\u0F0B\u200C\u200D\u2010\u2019\u2027\u30A0\u30FB]
 
-Let $WBRemovals := [\u0387\u0604\u2018\u2024\u202F\u2E2F\uFE13\uFE52\uFE55\uFF07\uFF0E\uFF1A\u200c\u200d'.\:\u00AD\u00B7\u05F3\u05F4\u0600-\u0603\u06DD\u070F\u17B4\u17B5\u200E\u200F\u2019\u2027\u202A-\u202E\u2060-\u2064\u206A-\u206F\uFEFF\uFFF9-\uFFFB\u02C2-\u02C5\u02D2-\u02D6\u02DE-\u02DF\u02ED\u02EF-\u02FF\uA720-\uA721\uA789-\uA78A\uAB5B\u055B\u055C\u055E\U000110BD\U0001D173-\U0001D17A\U000E0001\U000E0020-\U000E007F\p{gc=Cf}\p{Block=Enclosed Alphanumerics}[\u02D7\u0605\u061C\u180E\u2066-\u2069\U0001BCA0-\U0001BCA3\U0001F130-\U0001F149\U0001F150-\U0001F169\U0001F170-\U0001F189\U0001F3FB-\U0001F3FF]]
+# TODO(egg): This test either needs to be made readable or to go away.
+Let $WBRemovalsOld := [\u0387\u0604\u2018\u2024\u202F\u2E2F\uFE13\uFE52\uFE55\uFF07\uFF0E\uFF1A\u200c\u200d'.\:\u00AD\u00B7\u05F3\u05F4\u0600-\u0603\u06DD\u070F\u17B4\u17B5\u200E\u200F\u2019\u2027\u202A-\u202E\u2060-\u2064\u206A-\u206F\uFEFF\uFFF9-\uFFFB\u02C2-\u02C5\u02D2-\u02D6\u02DE-\u02DF\u02ED\u02EF-\u02FF\uA720-\uA721\uA789-\uA78A\uAB5B\u055B\u055C\u055E\U000110BD\U0001D173-\U0001D17A\U000E0001\U000E0020-\U000E007F\p{gc=Cf}\p{Block=Enclosed Alphanumerics}[\u02D7\u0605\u061C\u180E\u2066-\u2069\U0001BCA0-\U0001BCA3\U0001F130-\U0001F149\U0001F150-\U0001F169\U0001F170-\U0001F189\U0001F3FB-\U0001F3FF]]
 Let $WBRemovals13 := [\u02E5-\u02EB\u055A\u058A\uA708-\uA716\u055F]
 Let $WBRemoval17 := [\u00B8]
+Let $WBRemovals19 := [\U0001DFC9-\U0001DFCC]
+Let $WBRemovals := [$WBRemovals $WBRemovals13 $WBRemoval17 $WBRemovals19]
 
 # 9.0 corrected \p{gc=Cf} and added 202F
 # 10.0 added 34 characters which were absorbed into WB=LE (see http://www.unicode.org/reports/tr29/tr29-30d2.html#ALetter)
@@ -962,7 +965,7 @@ Let $WBRemoval17 := [\u00B8]
 Let $Uax31Removals := [\-\u058A\u0F0B\u2010\u30A0\u30FB\u2E2F\u17B4-\u17B5]
 # 6.1.0 adjust SAMVAT, KHMER VOWEL INHERENT*
 
-[\p{Alpha}\p{WB=Extend}\p{WB=FO}\p{WB=LE}\p{WB=ML}\p{WB=MB}\p{WB=EX}-$WBRemovals-$WBRemovals13-$WBRemoval17] = [$gcAllLetters $gcAllMarks \p{gc=Nl}\p{gc=Pc}-$Uax31Removals]
+[\p{Alpha}\p{WB=Extend}\p{WB=FO}\p{WB=LE}\p{WB=ML}\p{WB=MB}\p{WB=EX}-$WBRemovals] = [$gcAllLetters $gcAllMarks \p{gc=Nl}\p{gc=Pc}-$Uax31Removals]
 
 # Don’t break words after GCB=Prepend characters (that would be within a
 # grapheme cluster).