Prepare release 1.6.1beta1

Configuration.xcconfig

@@ -9,7 +9,7 @@
 MACOSX_DEPLOYMENT_TARGET = 10.12
 PRODUCT_BUNDLE_IDENTIFIER = info.marcel-dierkes.KeepingYouAwake
 
-MARKETING_VERSION = 1.6.1pre
+MARKETING_VERSION = 1.6.1beta1
 CURRENT_PROJECT_VERSION = 1060100
 
 KYA_COPYRIGHT_TEXT = Copyright © 2014 – 2021 Marcel Dierkes. All rights reserved.

docs/Versions/v1.6.1beta1.json

@@ -0,0 +1,8 @@
+{
+    "date": "2021-04-15 19:00:00",
+    "file_url": "https://github.com/newmarcel/KeepingYouAwake/releases/download/1.6.1beta1/KeepingYouAwake-1.6.1beta1.zip",
+    "file_length": 0,
+    "file_version": "1060100",
+    "file_short_version": "1.6.1beta1",
+    "is_prerelease": true
+}

docs/Versions/v1.6.1beta1.md

@@ -0,0 +1,4 @@
+# Version 1.6.1beta1: Notifications
+
+- added support for notifications, use `System Preferences` to manage notification settings ([#164](https://github.com/newmarcel/KeepingYouAwake/pull/164))
+  - please note, this feature is only available on macOS 11 or newer; the previous experimental notifications support has been removed