diff --git a/changes/28.0.0.md b/changes/28.0.0.md
index 1d3735902..24823b193 100644
--- a/changes/28.0.0.md
+++ b/changes/28.0.0.md
@@ -25,7 +25,9 @@
   - CYRILLIC CAPITAL LETTER LHA (`U+0514`) ... CYRILLIC SMALL LETTER YAE (`U+0519`) (#2018).
   - GEORGIAN PARAGRAPH SEPARATOR (`U+10FB`).
   - COMBINING BREVE-MACRON (`U+1DCB`) ... COMBINING MACRON-BREVE (`U+1DCC`) (#1880).
+  - COMBINING DOUBLE CIRCUMFLEX ABOVE (`U+1DCD`).
   - COMBINING LATIN SMALL LETTER FLATTENED OPEN A ABOVE (`U+1DD3`).
+  - COMBINING DELETION MARK (`U+1DFB`).
   - LINE SEPARATOR (`U+2028`) ... PARAGRAPH SEPARATOR (`U+2029`).
   - TRIANGLE-HEADED RIGHTWARDS ARROW (`U+279D`).
   - LONG RIGHTWARDS SQUIGGLE ARROW (`U+27FF`).
diff --git a/packages/font-glyphs/src/marks/above.ptl b/packages/font-glyphs/src/marks/above.ptl
index 87238aa90..71bf28aad 100644
--- a/packages/font-glyphs/src/marks/above.ptl
+++ b/packages/font-glyphs/src/marks/above.ptl
@@ -170,10 +170,12 @@ glyph-block Mark-Above : begin
 			flat (df.middle - HalfStroke * 1.1 * asciiMarkZoomX * [Math.sqrt df.div]) [mix aboveMarkMid aboveMarkBot asciiMarkZoomY] [widths.center : Stroke * 0.9]
 			curl (df.middle + markExtend * asciiMarkZoomX * [Math.sqrt df.div]) [mix aboveMarkMid aboveMarkTop asciiMarkZoomY] [widths.center : Stroke * 1.1]
 
+	glyph-block-export CaretCaronWidth CaretCaronMidSw CaretCaronTerminalSw
 	define CaretCaronWidth : 2 * markExtend + markStress
 	define CaretCaronMidSw : [StrokeWidthBlend 1.375 1.25] * markStroke
 	define CaretCaronTerminalSw : AdviceStroke 5
 
+	glyph-block-export CaretShape
 	define [CaretLeftShape] : with-params [top bottom xMiddle width swEnd swMid] : dispiro
 		flat (xMiddle - 0.5 * width) bottom [widths.center swEnd]
 		curl xMiddle                 top    [widths.center.heading swMid Upward]
@@ -575,7 +577,7 @@ glyph-block Mark-Above : begin
 
 	create-glyph 'tripleAcuteAbove' 0x1ACB : glyph-proc
 		set-width 0
-		include : StdAnchors.impl 'above' 0 1.5
+		include : StdAnchors.extraWide
 
 		local fine : 0.5 * [AdviceStroke 6]
 		local stress : 1.2 * fine
@@ -731,7 +733,7 @@ glyph-block Mark-Above : begin
 			include : StdAnchors.mediumWide
 
 	select-variant 'candrabinduAbove' 0x310 (follow -- 'diacriticDot')
-	turned 'turncandrabinduAbove' 0x352 'candrabinduAbove' markMiddle aboveMarkMid
+	turned 'fermataAbove' 0x352 'candrabinduAbove' markMiddle aboveMarkMid
 
 	alias 'graveToneAbove' 0x340 'graveAbove'
 	alias 'acuteToneAbove' 0x341 'acuteAbove'
@@ -938,6 +940,7 @@ glyph-block Mark-Above : begin
 
 	alias 'cyrlDasiaAbove' 0x485 'revCommaAbove'
 	alias 'cyrlPsiliAbove' 0x486 'commaAbove'
+
 	create-glyph 'cyrlPalatilizationAbove' 0x484 : glyph-proc
 		set-width 0
 		include : StdAnchors.wide
@@ -951,6 +954,7 @@ glyph-block Mark-Above : begin
 			g2.left.mid markMiddle (aboveMarkTop - markHalfStroke) [heading Leftward]
 			alsoThru.g2 0.5 0.5
 			g2.left.end leftEnd ([mix aboveMarkBot aboveMarkTop 0.5] - markHalfStroke) [heading Leftward]
+
 	create-glyph 'cyrlPokrytieAbove' 0x487 : glyph-proc
 		set-width 0
 		include : StdAnchors.wide
@@ -1124,6 +1128,29 @@ glyph-block Mark-Above : begin
 		include : VBar.m markMiddle aboveMarkBot aboveMarkTop (markFine * 2)
 		include : HBar.t (markMiddle - markExtend) (markMiddle + markExtend) aboveMarkTop (markFine * 2)
 
+	create-glyph 'deletionMarkAbove' 0x1DFB : glyph-proc
+		set-width 0
+		include : StdAnchors.medium
+
+		local wide : markExtend * 0.3
+		local d : markExtend * 0.7
+
+		local fine : 0.5 * [Math.min ([AdviceStroke 3.5] / Stroke * markStroke) (markExtend / 3)]
+		local stress : 1.2 * fine
+
+		include : dispiro
+			widths.center (stress * 2)
+			flat (markMiddle - d + wide) aboveMarkTop [heading Downward]
+			curl (markMiddle - d - wide) aboveMarkBot [widths.heading fine fine Downward]
+		include : dispiro
+			widths.center (stress * 2)
+			flat (markMiddle + wide) aboveMarkTop [heading Downward]
+			curl (markMiddle - wide) aboveMarkBot [widths.heading fine fine Downward]
+		include : dispiro
+			widths.center (stress * 2)
+			flat (markMiddle + d + wide) aboveMarkTop [heading Downward]
+			curl (markMiddle + d - wide) aboveMarkBot [widths.heading fine fine Downward]
+
 	# Scaled-down glyphs for Vietnamese's secondary mark
 	define [VNSecondaryMark s kx ky d] : glyph-proc
 		include : ScaleAround markMiddle aboveMarkMid s s
diff --git a/packages/font-glyphs/src/marks/tie.ptl b/packages/font-glyphs/src/marks/tie.ptl
index 2b04c5d01..d9176d4cb 100644
--- a/packages/font-glyphs/src/marks/tie.ptl
+++ b/packages/font-glyphs/src/marks/tie.ptl
@@ -13,7 +13,8 @@ glyph-block Mark-Tie : begin
 	glyph-block-import Mark-Shared-Metrics : markExtend markHalfStroke markStress markFine
 	glyph-block-import Mark-Shared-Metrics : markMiddle markDotsRadius
 	glyph-block-import Mark-Above : aboveMarkTop aboveMarkBot aboveMarkMid aboveMarkStack
-	glyph-block-import Mark-Above : TildeShape
+	glyph-block-import Mark-Above : TildeShape CaretShape CaretCaronWidth
+	glyph-block-import Mark-Above : CaretCaronMidSw CaretCaronTerminalSw
 	glyph-block-import Mark-Below : belowMarkBot belowMarkTop belowMarkMid
 
 	define aboveTieBase   : aboveMarkStack - AccentClearance
@@ -127,3 +128,18 @@ glyph-block Mark-Tie : begin
 			leftEnd -- tieLeft
 			rightEnd -- tieRight
 			hs -- markHalfStroke
+
+	create-glyph 'circumflexTieAbove' 0x1DCD : glyph-proc
+		set-width 0
+		set-mark-anchor 'tieAbove' 0 aboveTieBase 0 aboveTieTop
+		set-base-anchor 'aboveBraceL' (0 - 0.5 * markExtend) aboveTieMid
+		set-base-anchor 'aboveBraceR' (0 + 0.5 * markExtend) aboveTieMid
+
+		TieGlyph.set currentGlyph
+		include : CaretShape
+			xMiddle -- 0
+			width   -- CaretCaronWidth
+			top     -- aboveTieTop + markFine * 0.7
+			bottom  -- aboveTieBottom + markStress - markFine
+			swEnd   -- CaretCaronTerminalSw
+			swMid   -- CaretCaronMidSw