diff --git a/CHANGELOG.md b/CHANGELOG.md
index e2cef02..594c791 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,27 @@
 # Changelog
 
+## v1.6.3
+Bugfixes and quality of life improvements
+
+- Windows and macOS: add icon to GUI application
+- From math traces:
+  - Validate formula immediately and show error messages
+  - Bugfix: do not reset variable names when opening trace edit dialog again
+  - Fix crash when combining with de-embedding
+- Calibration:
+  - Interpolate points using mag/phase instead of real/imag (minor improvements in accuracy)
+  - Update widget when changing span
+  - Fix race condition when aborting measurement
+  - Reset LibreCAL port settings when aborting measurement
+- Manual improvement: typos and wording
+- Increase USB buffer timeout during sweep (should prevent disconnect when CPU is very busy)
+- Include actual serial of connected device in SCPI \*IDN? response
+- Allow group delay plot for reflection traces
+- Configurable default Y axis limits per Y axis type
+- Fix streaming server output for zero span sweeps
+- Synchronization improvements for compound device
+- Allow name changes for existing modes
+
 ## v1.6.2
 
 Mostly bugfixes with only minor new features
diff --git a/Software/PC_Application/LibreVNA-GUI/LibreVNA-GUI.pro b/Software/PC_Application/LibreVNA-GUI/LibreVNA-GUI.pro
index 20b9f62..c070682 100644
--- a/Software/PC_Application/LibreVNA-GUI/LibreVNA-GUI.pro
+++ b/Software/PC_Application/LibreVNA-GUI/LibreVNA-GUI.pro
@@ -416,5 +416,5 @@ QMAKE_CXXFLAGS += -Wno-deprecated -Wno-deprecated-declarations -Wno-deprecated-c
 CONFIG += c++17
 REVISION = $$system(git rev-parse HEAD)
 DEFINES += GITHASH=\\"\"$$REVISION\\"\"
-DEFINES += FW_MAJOR=1 FW_MINOR=6 FW_PATCH=2 FW_SUFFIX=""
+DEFINES += FW_MAJOR=1 FW_MINOR=6 FW_PATCH=3 FW_SUFFIX=""
 DEFINES -= _UNICODE UNICODE
diff --git a/Software/VNA_embedded/.cproject b/Software/VNA_embedded/.cproject
index 09ca2fb..b1393ba 100644
--- a/Software/VNA_embedded/.cproject
+++ b/Software/VNA_embedded/.cproject
@@ -44,7 +44,7 @@
 									<listOptionValue builtIn="false" value="_SNK"/>
 									<listOptionValue builtIn="false" value="FW_MAJOR=1"/>
 									<listOptionValue builtIn="false" value="FW_MINOR=6"/>
-									<listOptionValue builtIn="false" value="FW_PATCH=2"/>
+									<listOptionValue builtIn="false" value="FW_PATCH=3"/>
 									<listOptionValue builtIn="false" value="HW_REVISION='B'"/>
 									<listOptionValue builtIn="false" value="USE_FULL_LL_DRIVER"/>
 									<listOptionValue builtIn="false" value="USE_HAL_DRIVER"/>
@@ -91,7 +91,7 @@
 									<listOptionValue builtIn="false" value="DEBUG"/>
 									<listOptionValue builtIn="false" value="FW_MAJOR=1"/>
 									<listOptionValue builtIn="false" value="FW_MINOR=6"/>
-									<listOptionValue builtIn="false" value="FW_PATCH=2"/>
+									<listOptionValue builtIn="false" value="FW_PATCH=3"/>
 									<listOptionValue builtIn="false" value="HW_REVISION='B'"/>
 									<listOptionValue builtIn="false" value="USE_FULL_LL_DRIVER"/>
 									<listOptionValue builtIn="false" value="USE_HAL_DRIVER"/>
diff --git a/Software/VNA_embedded/Makefile b/Software/VNA_embedded/Makefile
index 2a4707d..2ef881b 100644
--- a/Software/VNA_embedded/Makefile
+++ b/Software/VNA_embedded/Makefile
@@ -101,7 +101,7 @@ MCU = $(CPU) -mthumb $(FLOAT-ABI) $(FPU)
 C_DEFS =  \
 -DFW_MAJOR=1 \
 -DFW_MINOR=6 \
--DFW_PATCH=2 \
+-DFW_PATCH=3 \
 -DDEBUG \
 -DUSE_FULL_LL_DRIVER \
 -DHW_REVISION="'B'" \