linux doesn't allow -alpha; try _alpha

.github/workflows/release.yml

@@ -3,10 +3,10 @@ name: "Generate Releases"
 on:
   release:
     types: [published]
-#      To test this workflow without creating a release, uncomment the following and add a branch name:
-#      push:
-#        branches:
-#          - 'branch-name'
+# # To test this workflow without creating a release, uncomment the following and add a branch name:
+# push:
+#   branches:
+#     - 'branch-name'
 
 jobs:
   release:
@@ -47,11 +47,11 @@ jobs:
           # and while we could use some regex to figure out the version number automatically, it seems cleaner
           # to know the expected version number upfront.
           if [ ${{ runner.os }} == 'Windows' ]; then
-            echo "FILEPATH=build/jpackage/RCTab-1.4.0-alpha.exe" >> $GITHUB_OUTPUT
+            echo "FILEPATH=build/jpackage/RCTab-1.4.0.exe" >> $GITHUB_OUTPUT
           elif [ ${{ runner.os }} == 'Linux' ]; then
-            echo "FILEPATH=build/jpackage/rctab_1.4.0-alpha-1_amd64.deb" >> $GITHUB_OUTPUT
+            echo "FILEPATH=build/jpackage/rctab_1.4.0-1_amd64.deb" >> $GITHUB_OUTPUT
           else
-            echo "FILEPATH=build/jpackage/RCTab-1.4.0-alpha.dmg" >> $GITHUB_OUTPUT
+            echo "FILEPATH=build/jpackage/RCTab-1.4.0.dmg" >> $GITHUB_OUTPUT
           fi
       - name: "Create executable filename"
         id: exefn

build.gradle

@@ -115,7 +115,7 @@ jlink {
     launcher {
         // TODO Sync version number with release.yml and Main.java (github.com/BrightSpots/rcv/issues/662)
         name = "RCTab"
-        version = "1.4.0-alpha"
+        version = "1.4.0"
     }
 
     jpackage {