diff --git a/CHANGELOG.md b/CHANGELOG.md
index 612bb7db..5d3fa854 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,26 @@
 # Change log
 
+## 0.9.9 on 2021/12/15
+### Supports direct scan👏
+
+- Some keyboards support **direct scan**. e.g. https://www.sho-k.co.uk/tech/1246.html  
+  Now you can configure it as follow:
+
+  ```ruby
+  kbd.set_scan_mode = :direct
+  kbd.init_pins(
+    [],
+    [ 8, 27, 28, 29, 9, 26 ]
+  )
+  ```
+  or
+
+  ```ruby
+  kbd.init_direct_pins(
+    [ 8, 27, 28, 29, 9, 26 ]
+  )
+  ```
+
 ## 0.9.8 on 2021/12/10
 ### RotaryEncoder enhancement
 - Multiple encoders can be configured on a unit🎛
diff --git a/CMakeLists.txt b/CMakeLists.txt
index a5cd2a89..e9a840cd 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -27,7 +27,7 @@ pico_sdk_init()
 
 execute_process (COMMAND date +%Y%m%d OUTPUT_VARIABLE CMAKE_BUILDDATE OUTPUT_STRIP_TRAILING_WHITESPACE)
 execute_process (COMMAND git rev-parse --short HEAD OUTPUT_VARIABLE CMAKE_REVISION OUTPUT_STRIP_TRAILING_WHITESPACE)
-set (PRK_VERSION   0.9.8)
+set (PRK_VERSION   0.9.9)
 set (PRK_BUILDDATE ${CMAKE_BUILDDATE})
 set (PRK_REVISION  ${CMAKE_REVISION})
 configure_file ("${CMAKE_CURRENT_SOURCE_DIR}/src/version.h.in" "${CMAKE_CURRENT_SOURCE_DIR}/src/version.h")