diff --git a/HISTORY.rst b/HISTORY.rst
index 8f36ba47..33737527 100644
--- a/HISTORY.rst
+++ b/HISTORY.rst
@@ -32,6 +32,7 @@ PlatformIO Core 6
 
 * Allowed to ``Import("projenv")`` in a library extra script (`issue #4305 <https://github.com/platformio/platformio-core/issues/4305>`_)
 * Improved a serial port finder for a board with predefined HWIDs
+* Documented `Stringification <https://docs.platformio.org/en/latest/projectconf/section_env_build.html#stringification>`__  – converting a macro argument into a string constant (`issue #4310 <https://github.com/platformio/platformio-core/issues/4310>`_)
 * Added ``env.StringifyMacro(value)`` helper function for the `Advanced Scripting <https://docs.platformio.org/en/latest/scripting/index.html>`__
 
 6.0.2 (2022-06-01)
diff --git a/docs b/docs
index b3bb4bfe..6bfc42b2 160000
--- a/docs
+++ b/docs
@@ -1 +1 @@
-Subproject commit b3bb4bfe67f98edbf5acfbdbb2cf61d7912dec29
+Subproject commit 6bfc42b22668cea6210f70feee8dcf427de55c7f