diff --git a/changes/6.0.0-preview.2.md b/changes/6.0.0-preview.3.md
similarity index 92%
rename from changes/6.0.0-preview.2.md
rename to changes/6.0.0-preview.3.md
index 6d2fda6e2..6bc0b128e 100644
--- a/changes/6.0.0-preview.2.md
+++ b/changes/6.0.0-preview.3.md
@@ -3,6 +3,6 @@
  * \[**Breaking**\]: Reorganize variants of `A`, `B`, `D`, `J`, `X`, `Y`, `Z`, `d`, `x` and `z`.
  * Update SS02 and SS16 to better reflect their source fonts (#939).
  * Remove unnecessary serifs of Slab Italic Small Cyrillic KA (#938).
- * Add flat-hook variants of `J` (#940).
+ * Add flat-hook variants of `J` (#940, #945).
  * Add flat-arc parenthesis (#941).
  * Fixed broken shape of Motion Serifed Cyrl/Shcha (#944).
diff --git a/font-src/glyphs/letter/latin/upper-j.ptl b/font-src/glyphs/letter/latin/upper-j.ptl
index 7391f414c..d4e94530c 100644
--- a/font-src/glyphs/letter/latin/upper-j.ptl
+++ b/font-src/glyphs/letter/latin/upper-j.ptl
@@ -105,6 +105,8 @@ glyph-block Letter-Latin-Upper-J : begin
 		serifedSymmetric           { JFullHookBase   [DivFrame 1] [DivFrame 1] JSymmetricSerif (RightSB - HalfStroke * HVContrast - JBalance2) }
 		flatHookSerifless          { JFlatHookBase   [DivFrame 1] [DivFrame 1] null            (RightSB - HalfStroke * HVContrast - JBalance2) }
 		flatHookSerifed            { JFlatHookBase   [DivFrame 1] [DivFrame 1] JLeftwardSerif  (RightSB - HalfStroke * HVContrast - JBalance2) }
+		flatHookSeriflessBothSides { JFlatHookBase   [DivFrame 1] [DivFrame 1] JBothSidesSerif (RightSB - HalfStroke * HVContrast - JBalance2) }
+		flatHookSerifedSymmetric   { JFlatHookBase   [DivFrame 1] [DivFrame 1] JSymmetricSerif (RightSB - HalfStroke * HVContrast - JBalance2) }
 		descendingSerifless        { JDescendingBase [DivFrame 1] [DivFrame 1] null            (Middle + JBalance)                             }
 		descendingSerifed          { JDescendingBase [DivFrame 1] [DivFrame 1] JLeftwardSerif  (Middle + JBalance)                             }
 		descendingSerifedBothSides { JDescendingBase [DivFrame 1] [DivFrame 1] JBothSidesSerif (Middle + JBalance)                             }
diff --git a/params/variants.toml b/params/variants.toml
index 6b44f9e5a..8f8527e9a 100644
--- a/params/variants.toml
+++ b/params/variants.toml
@@ -482,33 +482,43 @@ rank = 6
 description = "J with flat hook and top serif"
 selector.J  = "flatHookSerifed"
 
-[prime.capital-j.variants.descending-serifless]
+[prime.capital-j.variants.flat-hook-serifed-both-sides]
 rank = 7
+description = "J with flat hook and without serif"
+selector.J  = "flatHookSeriflessBothSides"
+
+[prime.capital-j.variants.flat-hook-serifed-symmetric]
+rank = 8
+description = "J with flat hook and top serif"
+selector.J  = "flatHookSerifedSymmetric"
+
+[prime.capital-j.variants.descending-serifless]
+rank = 9
 description = "J with hook goes below descender and without serif"
 selector.J  = "descendingSerifless"
 
 [prime.capital-j.variants.descending-serifed]
-rank = 8
+rank = 10
 description = "J with hook goes below descender and top serif"
 selector.J  = "descendingSerifed"
 
 [prime.capital-j.variants.descending-serifed-both-sides]
-rank = 9
+rank = 11
 description = "J with hook goes below descender and top serif at both sides (asymmetric)"
 selector.J  = "descendingSerifedBothSides"
 
 [prime.capital-j.variants.descending-serifed-symmetric]
-rank = 10
+rank = 12
 description = "J with hook goes below descender and top serif at both sides (symmetric)"
 selector.J  = "descendingSerifedSymmetric"
 
 [prime.capital-j.variants.descending-flat-hook-serifless]
-rank = 11
+rank = 13
 description = "J with flat hook goes below descender and without serif"
 selector.J  = "descendingFlatHookSerifless"
 
 [prime.capital-j.variants.descending-flat-hook-serifed]
-rank = 12
+rank = 14
 description = "J with flat hook goes below descender and top serif"
 selector.J  = "descendingFlatHookSerifed"