Bumping bytecode version.

compiler/src/iree/compiler/Dialect/VM/Target/Bytecode/BytecodeEncoder.h

diff --git a/compiler/src/iree/compiler/Dialect/VM/Target/Bytecode/BytecodeEncoder.h b/compiler/src/iree/compiler/Dialect/VM/Target/Bytecode/BytecodeEncoder.h
index 8463980..d4730a9 100644
--- a/compiler/src/iree/compiler/Dialect/VM/Target/Bytecode/BytecodeEncoder.h
+++ b/compiler/src/iree/compiler/Dialect/VM/Target/Bytecode/BytecodeEncoder.h
@@ -37,7 +37,7 @@
 class BytecodeEncoder : public VMFuncEncoder {
  public:
   // Matches IREE_VM_BYTECODE_VERSION_MAJOR.
-  static constexpr uint32_t kVersionMajor = 14;
+  static constexpr uint32_t kVersionMajor = 15;
   // Matches IREE_VM_BYTECODE_VERSION_MINOR.
   static constexpr uint32_t kVersionMinor = 0;
   static constexpr uint32_t kVersion = (kVersionMajor << 16) | kVersionMinor;

runtime/src/iree/vm/bytecode/utils/isa.h

diff --git a/runtime/src/iree/vm/bytecode/utils/isa.h b/runtime/src/iree/vm/bytecode/utils/isa.h
index d24300c..0d00fde 100644
--- a/runtime/src/iree/vm/bytecode/utils/isa.h
+++ b/runtime/src/iree/vm/bytecode/utils/isa.h
@@ -33,7 +33,7 @@
 // Major bytecode version; mismatches on this will fail in either direction.
 // This allows coarse versioning of completely incompatible versions.
 // Matches BytecodeEncoder::kVersionMajor in the compiler.
-#define IREE_VM_BYTECODE_VERSION_MAJOR 14
+#define IREE_VM_BYTECODE_VERSION_MAJOR 15
 // Minor bytecode version; lower versions are allowed to enable newer runtimes
 // to load older serialized files when there are backwards-compatible changes.
 // Higher versions are disallowed as they occur when new ops are added that