diff --git a/spirv-headers.changes b/spirv-headers.changes
index d2abfdf..75327a5 100644
--- a/spirv-headers.changes
+++ b/spirv-headers.changes
@@ -1,3 +1,15 @@
+-------------------------------------------------------------------
+Tue Oct  8 16:04:45 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
+
+- Update to release 1.6.4+sdk296 based on Git tag/release
+  "SDK-1.3.296.0"
+  * Update headers with SPIR-V version 1.6, revision 4
+  * Reserve 4 memory operands bits for Arm
+  * Add support for SPV_KHR_untyped_pointers and
+     SPV_INTEL_subgroup_buffer_prefetch
+  * Add Capability and Execution mode
+    SPV_KHR_compute_shader_derivatives
+
 -------------------------------------------------------------------
 Tue Jul 23 04:50:50 UTC 2024 - Jan Engelhardt <jengelh@inai.de>
 
diff --git a/spirv-headers.spec b/spirv-headers.spec
index 94a63d3..b86fe18 100644
--- a/spirv-headers.spec
+++ b/spirv-headers.spec
@@ -19,13 +19,13 @@
 # The git repo is a hodgepodge.
 # Most recent tag is 1.5.4, but that is outdated.
 # CMakeLists.txt's project() line contains 1.5.5, but this is outdated too.
-# The SPIR-V version is 1.6.1 (include/spirv/unified1/spirv.core.grammar.json)
+# The SPIR-V version is 1.6.4 (include/spirv/unified1/spirv.core.grammar.json)
 # They add "SDK" tags that reflect the Vulkan version (1.3),
-# and the independently increasing toolchain release number (283).
+# and the independently increasing toolchain release number (296).
 
 Name:           spirv-headers
-Version:        1.6.1+sdk290
-%define innerver 1.3.290
+Version:        1.6.4+sdk296
+%define innerver 1.3.296
 Release:        0
 Summary:        Machine-readable files from the SPIR-V registry
 License:        MIT
diff --git a/vulkan-sdk-1.3.290.tar.gz b/vulkan-sdk-1.3.290.tar.gz
deleted file mode 100644
index 641e7e6..0000000
--- a/vulkan-sdk-1.3.290.tar.gz
+++ /dev/null
@@ -1,3 +0,0 @@
-version https://git-lfs.github.com/spec/v1
-oid sha256:6259184f829f9d8c01a343dd29c56a700cc3da71a17c439384687da98dee2cf4
-size 521623
diff --git a/vulkan-sdk-1.3.296.tar.gz b/vulkan-sdk-1.3.296.tar.gz
new file mode 100644
index 0000000..3652ee7
--- /dev/null
+++ b/vulkan-sdk-1.3.296.tar.gz
@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f03ff6cc6bf4fa88f8e66117557c521f456709a4ee5333f94ac7dc040d276136
+size 523597