Release 16.6.0 · KhronosGroup/glslang

16.6.0 2026-09-10

Require the first parameter of abortEXT to be a string literal, emit an error if it is not
Require the first parameter of printf to be a string literal, emit an error if it is not
Fix abort message struct layout for matrix, vector, and aggregate arguments
Pack the abort message with scalar layout when the shader requests GL_EXT_scalar_block_layout
Pack the abort message with scalar layout unconditionally so that consumers use one fixed set of rules
Fix abort message type to use separate value and laid out types, removing invalid ArrayStride on constant types
Fix abort to handle boolean and opaque types correctly

Fix relaxed Vulkan access chain traversal for buffer references
Fix 32-bit identity fillers used in 16-bit matrix constructors
Fix out-of-bounds slot access for atomic_uint in reserveResourceSlot
Fix out-of-bounds read when folding component-wise intrinsics on matrices
Fix out-of-bounds dereference on undeclared ray tracing location
Fix out-of-bounds read on empty entryPoints in postProcessFeatures
Fix out-of-bounds read on short coopMatPerElementNV argument list
Fix crash on empty struct initializers in cascading error mode
Guard empty block member list in getBlockSize
Validate argument count in decomposeStructBufferMethods
Require constant scope and semantics operands in memorySemanticsCheck
Fix string escaping in preprocessed output
Fix Aligned decoration on buffer_reference swizzle-store read-modify-write load
Fold bit-cast conversions as constant expressions
Fold hyperbolic functions (sinh, cosh, tanh, asinh, acosh, atanh) as constant expressions
Improve parsing of #pragma STDGL

Replace linear search with a hash table for composite and struct constant creation in the SPIR-V builder