diff --git a/docs/changelog.rst b/docs/changelog.rst
index beb5c4873..1191c3ed8 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -276,6 +276,8 @@ Detailed list of changes
 
 - ssh kitten: Sanitize user controlled data in error messages that might leak to shell (:cve:`2026-42850`)
 
+- Linux: Respect the fontconfig matrix setting commonly used for fake slant with fonts that do not have italic variants (:pull:`9990`)
+
 
 0.46.2 [2026-03-21]
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
diff --git a/kitty/fast_data_types.pyi b/kitty/fast_data_types.pyi
index 54b53959f..1d70c5255 100644
--- a/kitty/fast_data_types.pyi
+++ b/kitty/fast_data_types.pyi
@@ -423,6 +423,7 @@ class FontConfigPattern(TypedDict):
     scalable: bool
     outline: bool
     color: bool
+    matrix: tuple[float, float, float, float]
     variable: bool
     named_instance: bool