diff --git a/.github/workflows/build_wheels.yml b/.github/workflows/build_wheels.yml
index e2891fd..f48c12b 100644
--- a/.github/workflows/build_wheels.yml
+++ b/.github/workflows/build_wheels.yml
@@ -1,6 +1,8 @@
 name: Build and upload to PyPI
 
-on: push
+on:
+    push:
+    workflow_dispatch:
 
 jobs:
   build_wheels:
@@ -17,11 +19,12 @@ jobs:
       - uses: actions/checkout@v4
 
       - name: Build wheels
-        uses: pypa/cibuildwheel@v2.16.2
+        uses: pypa/cibuildwheel@v2.16.5
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
-          path: ./wheelhouse/*.whl
+          name: cibw-wheels-${{ matrix.os }}-${{ strategy.job-index }}
+          path: wheelhouse/*.whl
 
   build_sdist:
     name: Build source distribution
@@ -32,8 +35,9 @@ jobs:
       - name: Build sdist
         run: pipx run build --sdist
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
+          name: cibw-sdist
           path: dist/*.tar.gz
 
   upload_pypi:
@@ -44,15 +48,13 @@ jobs:
       url: https://pypi.org/p/mrhttp 
     permissions:
       id-token: write  # IMPORTANT: mandatory for trusted publishing
-    if: startsWith(github.ref, 'refs/tags/')  # only publish to PyPI on tag pushes
+    if: startsWith(github.ref, 'refs/tags/v')  # only publish to PyPI on tag pushes
     steps:
-      - uses: actions/download-artifact@v3
+      - uses: actions/download-artifact@v4
         with:
-          # unpacks default artifact into dist/
-          # if `name: artifact` is omitted, the action will create extra parent dir
-          name: artifact
+          pattern: cibw-*
           path: dist
+          merge-multiple: true
+
 
       - uses: pypa/gh-action-pypi-publish@release/v1
-        # with:
-          # repository-url: https://test.pypi.org/legacy/
diff --git a/gbench/bld b/gbench/bld
index d0e360a..8352837 100755
--- a/gbench/bld
+++ b/gbench/bld
@@ -1,8 +1,8 @@
 #
 #g++ t.cpp -O3 -msse4.2 -mavx2 -std=c++11 -lbenchmark -lpthread -o t
 #g++ tst.cpp -O3 -msse4.2 -mavx2 -std=c++11 -lbenchmark -lpthread -o tst
-#g++ parse.cpp -O3 -msse4.2 -mavx2 -std=c++11 -lbenchmark -lpthread -o parse
+g++ parse.cpp -O3 -msse4.2 -mavx2 -std=c++11 -lbenchmark -lpthread -o parse
 #g++ string.cpp -O0 -msse4.2 -mavx2 -std=c++11 -lbenchmark -lpthread -o string
 #g++ query.cpp -O0 -msse4.2 -mavx2 -std=c++11 -lbenchmark -lpthread -o query
-g++ rand.cpp -O3 -msse4.2 -mavx2 -std=c++11 -lbenchmark -lpthread -o orand
+#g++ rand.cpp -O3 -msse4.2 -mavx2 -std=c++11 -lbenchmark -lpthread -o orand
 
diff --git a/gbench/parse.cpp b/gbench/parse.cpp
index acbea6a..fcd28f0 100644
--- a/gbench/parse.cpp
+++ b/gbench/parse.cpp
@@ -116,7 +116,7 @@ std::size_t slow_hparse(std::string &text) noexcept
   int last = 0;
   int index = 0;
 
-  for (std::uint64_t i = 0; i < text.length(); i++)
+  for (int i = 0; i < text.length(); i++)
   {
     if ( text[i] == ':' ) {
         keys[index] = text.substr( last, i-last );
@@ -1234,13 +1234,13 @@ static void BM_get_session_avx2(benchmark::State& state) {
 
 
 //BENCHMARK(BM_SlowParse);
-BENCHMARK(BM_sse4_get_eol);
-BENCHMARK(BM_my_get_eol);
-//BENCHMARK(BM_my3_header_parse);
-//BENCHMARK(BM_my2_header_parse);
+//BENCHMARK(BM_sse4_get_eol);
+//BENCHMARK(BM_my_get_eol);
+BENCHMARK(BM_my3_header_parse);
+BENCHMARK(BM_my2_header_parse);
 //BENCHMARK(BM_my_header_parse);
-//BENCHMARK(BM_old_header_parse);
-//BENCHMARK(BM_avx2_header_parse);
+BENCHMARK(BM_old_header_parse);
+BENCHMARK(BM_avx2_header_parse);
 //BENCHMARK(BM_adv_token);
 //BENCHMARK(BM_adv_token_avx2);
 //BENCHMARK(BM_get_session);
diff --git a/src/mrhttp/utils/unpack.c b/src/mrhttp/utils/unpack.c
index 17d4075..eacac59 100644
--- a/src/mrhttp/utils/unpack.c
+++ b/src/mrhttp/utils/unpack.c
@@ -1,4 +1,5 @@
 
+
 #include "unpack.h"
 #include "py_defines.h"
 #include <time.h>
@@ -48,6 +49,14 @@ PyObject *decode( char *s, char *end) {
     o = PyUnicode_FromStringAndSize( s, l );
     s += l;
   }
+  else if ( *(s) == 0x6B ) {
+    s++;
+    uint32_t *p = (uint32_t*)s;
+    uint32_t l = *p;
+    s+=4;
+    o = PyBytes_FromStringAndSize( s, l );
+    s += l;
+  }
   else if ( *(s) == 0x61 ) { s += 1; Py_INCREF(Py_True);  o = Py_True; }
   else if ( *(s) == 0x62 ) { s += 1; Py_INCREF(Py_False); o = Py_False; }
   else if ( *(s) == 0x63 ) { 
diff --git a/tst.py b/tst.py
index 316ec00..c07898c 100755
--- a/tst.py
+++ b/tst.py
@@ -1,7 +1,6 @@
 
 import traceback, mrjson
 from mrhttp import app
-import mrpacker
 
 @app.route('/',_type='text')
 def index(r):