diff --git a/appveyor.yml b/appveyor.yml
index b23e95a62..86c0b02d2 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -190,11 +190,11 @@ after_build:
 - copy ..\Resources\win32\gc.ico
 
 # Installer script
-- copy ..\Resources\win32\GC3.6-Master-W64-QT5.nsi
+- copy ..\Resources\win32\GC3.7-Master-W64-QT5.nsi
 
 # Build the installer
-- makensis GC3.6-Master-W64-QT5.nsi
-- move GoldenCheetah_v3.6_64bit_Windows.exe ..\..\GoldenCheetah_v3.6_x64.exe
+- makensis GC3.7-Master-W64-QT5.nsi
+- move GoldenCheetah_v3.7_DEV_64bit_Windows.exe ..\..\GoldenCheetah_v3.7-DEV_x64.exe
 - cd ..\..
 - ps: Set-AppveyorBuildVariable -Name 'PUBLISH_BINARIES' -Value false
 - ps: if ($env:APPVEYOR_REPO_COMMIT_MESSAGE_EXTENDED -Match "\[publish binaries\]") { Set-AppveyorBuildVariable -Name 'PUBLISH_BINARIES' -Value true }
@@ -203,11 +203,11 @@ test_script:
 # minimum test
 - src\release\GoldenCheetah --version 2>GCversionWindows.txt
 - git log -1 >> GCversionWindows.txt
-- ps: CertUtil -hashfile GoldenCheetah_v3.6_x64.exe sha256 | Select-Object -First 2 | Add-Content GCversionWindows.txt
+- ps: CertUtil -hashfile GoldenCheetah_v3.7-DEV_x64.exe sha256 | Select-Object -First 2 | Add-Content GCversionWindows.txt
 - type GCversionWindows.txt
 
 artifacts:
-- path: GoldenCheetah_v3.6_x64.exe
+- path: GoldenCheetah_v3.7-DEV_x64.exe
   name: GCinstaller
 - path: GCversionWindows.txt
   name: GCversionWindows
diff --git a/src/Core/GcUpgrade.h b/src/Core/GcUpgrade.h
index 50b6f25fb..7fe06f5a8 100644
--- a/src/Core/GcUpgrade.h
+++ b/src/Core/GcUpgrade.h
@@ -106,8 +106,8 @@
 // 4011 - V3.6 DEVELOPMENT 2208 (AUG 2022) (Pre-release RC2)
 // 4012 - V3.6 DEVELOPMENT 2210 (OCT 2022) (Pre-release RC3)
 // 4013 - V3.6 DEVELOPMENT 2303 (MAR 2023) (Pre-release RC4)
-// 5000 - V3.6 RELEASE (August 2023) - latest snapshot 12/3/24
-// 5001 - V3.7 DEVELOPMENT
+// 5000 - V3.6 RELEASE (August 2023)
+// 5001 - V3.7 DEVELOPMENT 2404 (APR 2024) - latest snapshot 13/4/24
 
 #define VERSION3_BUILD    3010 // released
 #define VERSION3_SP1      3030 // released
diff --git a/src/Resources/win32/GC3.6-Master-W64-QT5.nsi b/src/Resources/win32/GC3.7-Master-W64-QT5.nsi
similarity index 98%
rename from src/Resources/win32/GC3.6-Master-W64-QT5.nsi
rename to src/Resources/win32/GC3.7-Master-W64-QT5.nsi
index b3b540278..a55166bd1 100644
--- a/src/Resources/win32/GC3.6-Master-W64-QT5.nsi
+++ b/src/Resources/win32/GC3.7-Master-W64-QT5.nsi
@@ -14,7 +14,7 @@ FunctionEnd
 
 ; HM NIS Edit Wizard helper defines
 !define PRODUCT_NAME "Golden Cheetah"
-!define PRODUCT_VERSION "v3.6"
+!define PRODUCT_VERSION "v3.7-DEV"
 !define PRODUCT_BIT "64"
 !define PRODUCT_STARTMENU "Golden Cheetah"
 !define PRODUCT_WEB_SITE_FILENAME "GoldenCheetah WebSite"
@@ -311,23 +311,12 @@ Section /o "Visual C++ Redistributable" Sec2
   
 SectionEnd
 
-;Section /o "R-Project (3.6.3)" Sec3
-;
-;  SetOutPath "$INSTDIR"
-;  SetOverwrite ifnewer
-;  File "R-3.6.3-win.exe"
-;  ExecWait 'R-3.6.3-win.exe'
-;
-;SectionEnd
-
 LangString DESC_Sec1 ${LANG_ENGLISH} "Golden Cheetah for Windows - 64Bit"
 LangString DESC_Sec2 ${LANG_ENGLISH} "Microsoft Visual C++ 2015-2019 Redistributable (x64) is required to run Golden Cheetah for Windows"
-;LangString DESC_Sec3 ${LANG_ENGLISH} "R (3.6.x) for Windows is required to use R-based Charts in Golden Cheetah"
 
 !insertmacro MUI_FUNCTION_DESCRIPTION_BEGIN
   !insertmacro MUI_DESCRIPTION_TEXT ${Sec1} $(DESC_Sec1)
   !insertmacro MUI_DESCRIPTION_TEXT ${Sec2} $(DESC_Sec2)
-;  !insertmacro MUI_DESCRIPTION_TEXT ${Sec3} $(DESC_Sec3)
 !insertmacro MUI_FUNCTION_DESCRIPTION_END
 
 
diff --git a/travis/linux/after_success.sh b/travis/linux/after_success.sh
index cca920a23..b47ce015f 100755
--- a/travis/linux/after_success.sh
+++ b/travis/linux/after_success.sh
@@ -81,7 +81,7 @@ then echo "AppImage not generated, check the errors"; exit 1
 fi
 
 echo "Renaming AppImage file to branch and build number ready for deploy"
-export FINAL_NAME=GoldenCheetah_v3.6-DEV_x64.AppImage
+export FINAL_NAME=GoldenCheetah_v3.7-DEV_x64.AppImage
 mv GoldenCheetah*.AppImage $FINAL_NAME
 ls -l $FINAL_NAME
 
diff --git a/travis/osx/after_success.sh b/travis/osx/after_success.sh
index 9a479f6a2..c5d3d148a 100755
--- a/travis/osx/after_success.sh
+++ b/travis/osx/after_success.sh
@@ -54,7 +54,7 @@ python3.7 -m pip install travis-wait-improved
 /Library/Frameworks/Python.framework/Versions/3.7/bin/travis-wait-improved --timeout 20m /usr/local/opt/qt5/bin/macdeployqt GoldenCheetah.app -verbose=2 -fs=hfs+ -dmg
 
 echo "Renaming dmg file to branch and build number ready for deploy"
-export FINAL_NAME=GoldenCheetah_v3.6-DEV_x64.dmg
+export FINAL_NAME=GoldenCheetah_v3.7-DEV_x64.dmg
 mv GoldenCheetah.dmg $FINAL_NAME
 ls -l $FINAL_NAME