diff --git a/bypy/linux.conf b/bypy/linux.conf
index 56950058d..2578dbc77 100644
--- a/bypy/linux.conf
+++ b/bypy/linux.conf
@@ -1,3 +1,3 @@
-image 'https://cloud-images.ubuntu.com/releases/bionic/release/ubuntu-18.04-server-cloudimg-{}.img'
+image 'https://cloud-images.ubuntu.com/releases/jammy/release/ubuntu-22.04-server-cloudimg-{}.img'
 
 deps 'bison flex libxcursor-dev libxrandr-dev libxi-dev libxinerama-dev libgl1-mesa-dev libx11-xcb-dev libxcb-xkb-dev libfontconfig1-dev libdbus-1-dev libsystemd-dev'
diff --git a/bypy/sources.json b/bypy/sources.json
index 0b682d298..443337975 100644
--- a/bypy/sources.json
+++ b/bypy/sources.json
@@ -271,11 +271,10 @@
     },
 
     {
-        "name": "simde 0.7.6",
-        "comment": "Cannot update till gcc in the build VM is updated as simde 0.8 requires newer gcc",
+        "name": "simde 0.8.2",
         "unix": {
             "file_extension": "tar.xz",
-            "hash": "sha256:703eac1f2af7de1f7e4aea2286130b98e1addcc0559426e78304c92e2b4eb5e1",
+            "hash": "sha256:59068edc3420e75c5ff85ecfd80a77196fb3a151227a666cc20abb313a5360bf",
             "urls": ["https://github.com/simd-everywhere/simde/releases/download/v{version}/simde-amalgamated-{version}.{file_extension}"]
         }
     },
diff --git a/docs/changelog.rst b/docs/changelog.rst
index d11d395e2..4e5b73ff2 100644
--- a/docs/changelog.rst
+++ b/docs/changelog.rst
@@ -190,6 +190,8 @@ Detailed list of changes
 
 - Wayland: Fix first OS window being a few cells too small when ``initial_window_width/initial_window_height`` are set in cells and a fractional display scale is in use (:iss:`10146`)
 
+- kitty binary builds are now built on Ubuntu 22 upgraded from Ubuntu 18 for improved performance from better compilers
+
 
 0.47.4 [2026-06-15]
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~