diff --git a/CHANGELOG.md b/CHANGELOG.md
index dd298f8c..1ad14f0a 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,21 @@
+# [3.4.0](https://github.com/UCSD-E4E/smartfin-fw3/compare/v3.3.3...v3.4.0) (2024-12-06)
+
+
+### Features
+
+* integrated water sensor into data collection ([19bee51](https://github.com/UCSD-E4E/smartfin-fw3/commit/19bee5190dec2b74050a940a6e61bb2def8d7ca2))
+* integrated water sensor into data collection ([#146](https://github.com/UCSD-E4E/smartfin-fw3/issues/146)) ([5e3ad08](https://github.com/UCSD-E4E/smartfin-fw3/commit/5e3ad08988300a0d64b60a0f7ca46c31b25a7497))
+
+## [3.3.3](https://github.com/UCSD-E4E/smartfin-fw3/compare/v3.3.2...v3.3.3) (2024-11-22)
+
+
+### Bug Fixes
+
+* Adds cstdarg include ([1ea0cc8](https://github.com/UCSD-E4E/smartfin-fw3/commit/1ea0cc8a4fb4795d1d6840bc629c41659805b8cc))
+* Adds cstdarg include ([#124](https://github.com/UCSD-E4E/smartfin-fw3/issues/124)) ([ffd41d7](https://github.com/UCSD-E4E/smartfin-fw3/commit/ffd41d7ec059ed799ddd2ff8d225641ae0b47a5c))
+* Switches to limits.h ([ee94566](https://github.com/UCSD-E4E/smartfin-fw3/commit/ee945662148bf821dabdfe3fc71311e718f389c7))
+* Switches to limits.h ([#129](https://github.com/UCSD-E4E/smartfin-fw3/issues/129)) ([379bcae](https://github.com/UCSD-E4E/smartfin-fw3/commit/379bcae1a4cb84f044ee2d4f2685df5f4ec72817))
+
 ## [3.3.2](https://github.com/UCSD-E4E/smartfin-fw3/compare/v3.3.1...v3.3.2) (2024-11-12)
 
 
diff --git a/src/cellular/dataCollection.cpp b/src/cellular/dataCollection.cpp
index b0a39f66..869cc7a9 100644
--- a/src/cellular/dataCollection.cpp
+++ b/src/cellular/dataCollection.cpp
@@ -110,7 +110,7 @@ void SS_ensemble10Func()
         lng = pData->location[1];
     }
 
-    water = 0; // TODO - waiting on water sensor integration
+    water = pSystemDesc->pWaterSensor->getCurrentReading();
 
     // Accumulate measurements
     pData->temperature += temp;
diff --git a/src/cellular/dataUpload.hpp b/src/cellular/dataUpload.hpp
index dac4bafc..e8b0cfef 100644
--- a/src/cellular/dataUpload.hpp
+++ b/src/cellular/dataUpload.hpp
@@ -36,17 +36,51 @@
  */
 #define DU_UPLOAD_MAX_REATTEMPTS    5
 
-
-class DataUpload : public Task{
-    public:
+/**
+ * @class DataUpload
+ * @brief Handles the data upload task.
+ *
+ * This class implements the task methods and internal states
+ * required for data uploading.
+ */
+class DataUpload : public Task
+{
+public:
+    /**
+     * @brief Initializes the data upload task.
+     */
     void init(void);
+
+    /**
+     * @brief Executes the data upload task logic.
+     *
+     * @return The next state after executing the task.
+     */
     STATES_e run(void);
+
+    /**
+     * @brief Cleans up resources and exits the task.
+     */
     void exit(void);
 
-    private:
+private:
+    //! Flag to indicate successful initialization.
     int initSuccess;
+    //! Tracks the last connection attempt time.
     system_tick_t lastConnectTime;
+
+    /**
+     * @brief State to transition to upon task exit.
+     *
+     * @return The exit state.
+     */
     STATES_e exitState(void);
+
+    /**
+     * @brief Checks if data can be uploaded.
+     *
+     * @return The current state indicating upload readiness.
+     */
     STATES_e can_upload(void);
 };
 #endif
\ No newline at end of file
diff --git a/src/cellular/ensembleTypes.hpp b/src/cellular/ensembleTypes.hpp
index 85baf9ca..d2f5ed48 100644
--- a/src/cellular/ensembleTypes.hpp
+++ b/src/cellular/ensembleTypes.hpp
@@ -26,6 +26,9 @@ typedef enum EnsembleID_
 }EnsembleID_e;
 
 #pragma pack(push, 1)
+/**
+ * @brief struct to contain header info for an ensemble
+ */
 typedef struct EnsembleHeader_
 {
     unsigned int ensembleType : 4;
diff --git a/src/cli/conio.hpp b/src/cli/conio.hpp
index e982340a..d0049e05 100644
--- a/src/cli/conio.hpp
+++ b/src/cli/conio.hpp
@@ -1,6 +1,7 @@
 #ifndef __CONIO_HPP__
 #define __CONIO_HPP__
 
+#include <cstdarg>
 #include <stdint.h>
 
 /**
@@ -53,4 +54,4 @@ extern "C"
 }
 #endif
 
-#endif
\ No newline at end of file
+#endif
diff --git a/src/cli/menuItems/debugCommands.hpp b/src/cli/menuItems/debugCommands.hpp
index 8dbca3f3..27d4a4c8 100644
--- a/src/cli/menuItems/debugCommands.hpp
+++ b/src/cli/menuItems/debugCommands.hpp
@@ -36,9 +36,8 @@ void CLI_testHasData(void);
  * @brief Delete all files
 */
 void CLI_wipeFileSystem(void);
-/*
- * @brief Monitors temperature sensor
- * 
+/**
+ * @brief Monitor temperature sensor
  */
 void CLI_monitorTempSensor(void);
 /**
diff --git a/src/fileCLI/fileCLI.hpp b/src/fileCLI/fileCLI.hpp
index e40852d6..97592cc4 100644
--- a/src/fileCLI/fileCLI.hpp
+++ b/src/fileCLI/fileCLI.hpp
@@ -3,9 +3,9 @@
 
 #include "Particle.h"
 
-#include <stddef.h>
 #include <dirent.h>
-#include <sys/syslimits.h>
+#include <limits.h>
+#include <stddef.h>
 
 #define FILE_CLI_INPUT_BUFFER_LEN   80
 #define FILE_CLI_MAX_DIR_DEPTH  4
diff --git a/src/smartfin-fw3.ino b/src/smartfin-fw3.ino
index 79e53729..8577d007 100644
--- a/src/smartfin-fw3.ino
+++ b/src/smartfin-fw3.ino
@@ -56,7 +56,7 @@ static STATES_e currentState;
 static StateMachine_t* findState(STATES_e state);
 static void initalizeTaskObjects(void);
 void mainThread(void* args);
-void printState(STATES_e state);
+static void printState(STATES_e state);
 
 // setup() runs once, when the device is first turned on.
 void setup() {
@@ -163,4 +163,4 @@ static void printState(STATES_e state)
     }
     pStateName = STATES_NAME_TAB[state];
     SF_OSAL_printf("%s" __NL__, pStateName);
-}
\ No newline at end of file
+}
diff --git a/src/vers.hpp b/src/vers.hpp
index 39c30fe8..90267cd2 100644
--- a/src/vers.hpp
+++ b/src/vers.hpp
@@ -11,8 +11,8 @@
 #include "product.hpp"
 
 #define FW_MAJOR_VERSION    3
-#define FW_MINOR_VERSION    3
-#define FW_BUILD_NUM        2
+#define FW_MINOR_VERSION    4
+#define FW_BUILD_NUM        0
 #define FW_BRANCH           ""
 
 #if PRODUCT_VERSION_USE_HEX == 1