diff --git a/README.md b/README.md
index 3a916f5..266841a 100644
--- a/README.md
+++ b/README.md
@@ -23,3 +23,7 @@ For the rough notes/implementation plan see [TODO](https://github.com/meshtastic
 ## Command line tool
 
 This pip package will also install a "meshtastic" commandline executable, which displays packets sent over the network as JSON and lets you see serial debugging information from the meshtastic devices. The source code for this tool is also a good [example](https://github.com/meshtastic/Meshtastic-python/meshtastic/__main__.py) of a 'complete' application that uses the meshtastic python API.
+
+## Required device software version
+
+This API and tool both require that the device is running Meshtastic 0.6.0 or later.
diff --git a/TODO.md b/TODO.md
index 0ecd57d..3ed67d5 100644
--- a/TODO.md
+++ b/TODO.md
@@ -8,7 +8,8 @@
 - DONE keep everything in dicts
 - document properties/fields
 - include more examples: textchat.py, replymessage.py all as one little demo
-- have python client turn off radio sleep (use 0 for X to mean restore defaults)
+- have python client turn on/off radio sleep (use 0 for X to mean restore defaults)
+- have device send a special packet at boot so the serial client can detect if it rebooted
 - announce at the usual places
 - DONE use port enumeration to find ports https://pyserial.readthedocs.io/en/latest/shortintro.html
 - DONE make serial debug output optional (by providing a null stream)