diff --git a/README.md b/README.md
index 5f80506..430cc47 100644
--- a/README.md
+++ b/README.md
@@ -64,7 +64,7 @@ version
 working version
 
 A:
-first prototype built using CircuitPro + ProtoMat S63
+first scrape prototype built using CircuitPro + ProtoMat S63
 bugs:
 - the hole for the USB and header pins are too wide. I hope it would create some through hole plating thanks to capillarity, but it didn't
 - wider vias annulus would be a good idea
@@ -73,3 +73,8 @@ bugs:
 - the 3.3 V on DTR can not drive the pMOS because it's switching 5.0 V, but V_GS < 1.1 V
 - decoupling capacitors on the serial lines should improve the quality
 - try if with less feritte beads and decoupling capacaitors PLL still works
+
+B:
+first cape prototype built using CircuitPro + ProtoMat S63
+bugs:
+- I used nMOS instead of pMOS, which won't work because the power connection on the phone shares ground with UART
diff --git a/hardware/version b/hardware/version
index 573541a..223b783 100644
--- a/hardware/version
+++ b/hardware/version
@@ -1 +1 @@
-0
+B
diff --git a/release/hardware-release_vB.tar.gz b/release/hardware-release_vB.tar.gz
new file mode 100644
index 0000000..77c425f
Binary files /dev/null and b/release/hardware-release_vB.tar.gz differ