diff --git a/_config.php b/_config.php
deleted file mode 100644
index 936bd82..0000000
--- a/_config.php
+++ /dev/null
@@ -1,5 +0,0 @@
-<?php
-
-use SilverStripe\Dev\Deprecation;
-
-Deprecation::notification_version('1.4.0', 'sqlite3');
diff --git a/code/SQLite3Database.php b/code/SQLite3Database.php
index b52c07a..9b7f4d4 100644
--- a/code/SQLite3Database.php
+++ b/code/SQLite3Database.php
@@ -540,7 +540,7 @@ class SQLite3Database extends Database
         return $this->transactionNesting;
     }
 
-    public function transactionEnd($chain = false)
+    public function transactionEnd(): bool|null
     {
         // Fail if transaction isn't available
         if (!$this->transactionDepth()) {
@@ -556,10 +556,6 @@ class SQLite3Database extends Database
             $this->resetTransactionNesting();
         }
 
-        if ($chain) {
-            $this->transactionStart();
-        }
-
         return true;
     }
 
diff --git a/code/SQLite3Query.php b/code/SQLite3Query.php
index 2d77d31..ac36d83 100644
--- a/code/SQLite3Query.php
+++ b/code/SQLite3Query.php
@@ -72,7 +72,8 @@ class SQLite3Query extends Query
         return $c;
     }
 
-    public function nextRecord()
+    #[\ReturnTypeWillChange]
+    public function getIterator()
     {
         if ($data = $this->handle->fetchArray(SQLITE3_ASSOC)) {
             return $data;
diff --git a/composer.json b/composer.json
index 45c9d57..614578b 100644
--- a/composer.json
+++ b/composer.json
@@ -14,8 +14,8 @@
 		}
 	],
 	"require": {
-		"silverstripe/framework": "~4.0",
-		"silverstripe/vendor-plugin": "^1.0"
+		"silverstripe/framework": "^5",
+		"silverstripe/vendor-plugin": "^2"
 	},
 	"require-dev": {
 		"squizlabs/php_codesniffer": "^3"