diff --git a/CMakeLists.txt b/CMakeLists.txt
index 65dcb62d3..658820145 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -71,7 +71,7 @@ message (STATUS "******************************************************")
 
 include (set_build_type)
 # RC 0 or omitted is a development build, GA is a General Availability release build
-set_build_type (RC 0)
+set_build_type (RC 1)
 set (wsjtx_VERSION "${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}${BUILD_TYPE_REVISION}")
 
 #
diff --git a/widgets/mainwindow.cpp b/widgets/mainwindow.cpp
index aa754d832..586fa874c 100644
--- a/widgets/mainwindow.cpp
+++ b/widgets/mainwindow.cpp
@@ -1052,14 +1052,14 @@ MainWindow::MainWindow(QDir const& temp_directory, bool multiple,
 
 void MainWindow::not_GA_warning_message ()
 {
-  // MessageBox::critical_message (this,
-  //                               "This is a pre-release version of WSJT-X " + version (false) + " made\n"
-  //                               "available for testing purposes.  By design it will\n"
-  //                               "be nonfunctional after Nov 30, 2021.");
-  // auto now = QDateTime::currentDateTimeUtc ();
-  // if (now >= QDateTime {{2021, 11, 30}, {23, 59, 59, 999}, Qt::UTC}) {
-  //   Q_EMIT finished ();
-  // }
+  MessageBox::critical_message (this,
+                                "This is a pre-release version of WSJT-X 2.6.0 made\n"
+                                "available for testing purposes.  By design it will\n"
+                                "be nonfunctional after Nov 30, 2022.");
+  auto now = QDateTime::currentDateTimeUtc ();
+  if (now >= QDateTime {{2022, 11, 30}, {23, 59, 59, 999}, Qt::UTC}) {
+    Q_EMIT finished ();
+  }
 }
 
 void MainWindow::initialize_fonts ()