DEP Set PHP 7.4 as the minimum version

.travis.yml

@@ -8,12 +8,12 @@ import:
 
 jobs:
   include:
-    - php: 7.3
+    - php: 7.4
       env:
         - DB=MYSQL
         - REQUIRE_INSTALLER="4.x-dev"
         - NPM_TEST=1
-    - php: 7.3
+    - php: 7.4
       env:
         - DB=PGSQL
         - REQUIRE_INSTALLER="4.x-dev"
@@ -24,15 +24,17 @@ jobs:
         - DB=MYSQL
         - REQUIRE_INSTALLER="4.x-dev"
         - PHPUNIT_COVERAGE_TEST=1
-    - php: 7.4
+    - php: 8.0
       env:
         - DB=MYSQL
         - REQUIRE_INSTALLER="4.x-dev"
         - BEHAT_TEST=1
         - BEHAT_SUITE="userforms"
-    - php: 8.0
+    - php: 8.1.0
       env:
         - DB=MYSQL
         - REQUIRE_INSTALLER="4.x-dev"
         - PHPUNIT_TEST=1
-        - COMPOSER_INSTALL_ARG=--ignore-platform-reqs
+  allow_failures:
+    - php: 8.1.0
+    

composer.json

@@ -30,7 +30,7 @@
         }
     ],
     "require": {
-        "php": "^7.3 || ^8.0",
+        "php": "^7.4 || ^8.0",
         "silverstripe/framework": "^4.10",
         "silverstripe/cms": "^4.6",
         "symbiote/silverstripe-gridfieldextensions": "^3.1",