diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9460632d..ae4103a5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 ## Changelog
 
+### v0.4.3
+
+* Enhancements
+  * Support Powerlevel command class
+  * Doc clean up
+  * `Grizzly.send_command/2` and `Grizzly.send_command/3`
+     can be passed a node id instead of a node.
+
 ### v0.4.2
 
 * Enhancements
diff --git a/mix.exs b/mix.exs
index 9b9d43ff..712c1354 100644
--- a/mix.exs
+++ b/mix.exs
@@ -4,7 +4,7 @@ defmodule Grizzly.MixProject do
   def project do
     [
       app: :grizzly,
-      version: "0.4.2",
+      version: "0.4.3",
       elixir: "~> 1.5",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,
@@ -75,8 +75,11 @@ defmodule Grizzly.MixProject do
           Grizzly.CommandClass.MultilevelSensor,
           Grizzly.CommandClass.NetworkManagementBasic,
           Grizzly.CommandClass.NetworkManagementInclusion,
+          Grizzly.CommandClass.NetworkManagementInstallationMaintenance,
           Grizzly.CommandClass.NetworkManagementProxy,
+          Grizzly.CommandClass.NoOperation,
           Grizzly.CommandClass.Notification,
+          Grizzly.CommandClass.Powerlevel,
           Grizzly.CommandClass.ScheduleEntryLock,
           Grizzly.CommandClass.SensorMultilevel,
           Grizzly.CommandClass.SwitchBinary,
@@ -115,8 +118,17 @@ defmodule Grizzly.MixProject do
           Grizzly.CommandClass.NetworkManagementInclusion.NodeAddKeysSet,
           Grizzly.CommandClass.NetworkManagementInclusion.NodeNeighborUpdateRequest,
           Grizzly.CommandClass.NetworkManagementInclusion.NodeRemove,
+          Grizzly.CommandClass.NetworkManagementInstallationMaintenance.PriorityRouteGet,
+          Grizzly.CommandClass.NetworkManagementInstallationMaintenance.PriorityRouteGet,
+          Grizzly.CommandClass.NetworkManagementInstallationMaintenance.RSSIGet,
+          Grizzly.CommandClass.NetworkManagementInstallationMaintenance.StatisticsClear,
+          Grizzly.CommandClass.NetworkManagementInstallationMaintenance.StatisticsGet,
           Grizzly.CommandClass.NetworkManagementProxy.NodeInfoCache,
           Grizzly.CommandClass.NetworkManagementProxy.NodeListGet,
+          Grizzly.CommandClass.Powerlevel.Get,
+          Grizzly.CommandClass.Powerlevel.Set,
+          Grizzly.CommandClass.Powerlevel.TestNodeGet,
+          Grizzly.CommandClass.Powerlevel.TestNodeSet,
           Grizzly.CommandClass.ScheduleEntryLock.DailyRepeatingGet,
           Grizzly.CommandClass.ScheduleEntryLock.DailyRepeatingSet,
           Grizzly.CommandClass.ScheduleEntryLock.EnableAllSet,