Issue #3263067 by JeroenT: Drop support for Drupal 8

composer.json

@@ -6,9 +6,9 @@
         "GPL-2.0-or-later"
     ],
     "require": {
-        "drupal/core": "^8.8 || ^9",
+        "drupal/core": "^9",
         "drupal/sharpspring": "^1.0",
-        "drupal/webform": "^5.15 || ^6.0"
+        "drupal/webform": "^6.0"
     },
     "authors": [
         {

sharpspring_webforms.info.yml

 name: SharpSpring Webforms
 type: module
 description: Adds SharpSpring tracking to admin selected webforms.
-core_version_requirement: ^8.8 || ^9
+core_version_requirement: ^9
 package: SharpSpring
 dependencies:
   - webform:webform