diff --git a/.github/workflows/acceptance.yml b/.github/workflows/acceptance.yml
index 4378918..fb04458 100644
--- a/.github/workflows/acceptance.yml
+++ b/.github/workflows/acceptance.yml
@@ -7,12 +7,12 @@ jobs:
   test:
     strategy:
       matrix:
-        php-versions: ["7.4", "8.0", "8.1", "8.2", "8.3", "8.4"]
+        php-versions: ["8.0", "8.1", "8.2", "8.3", "8.4"]
     runs-on: ubuntu-latest
     name: Unit test
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up PHP
       uses: shivammathur/setup-php@v2
       with:
@@ -39,11 +39,11 @@ jobs:
     name: Code standard
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up PHP
       uses: shivammathur/setup-php@v2
       with:
-        php-version: "8.2"
+        php-version: "8.3"
         coverage: none
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
@@ -66,11 +66,11 @@ jobs:
     name: Code coverage
     steps:
     - name: Checkout
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
     - name: Set up PHP
       uses: shivammathur/setup-php@v2
       with:
-        php-version: "8.2"
+        php-version: "8.3"
         coverage: xdebug
       env:
         GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
diff --git a/README.md b/README.md
index 46ee5b8..b0fd0fd 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@
 
 Utility library for numerics. Float versions of `ceil()`, `floor()` and `rand()` with precision. An open minded numeric parser, formatter, plus some additional functions.
 
-Current version supports PHP `^7.4|^8.0`.
+Current version supports PHP `^8.0`.
 
 ## Installation
 
@@ -218,7 +218,8 @@ $numerics->setLocale('sv_SE'); // Set to Swedish
 
 | Version | PHP | |
 | --- | --- | --- |
-| `2.3` | `^7.4\|^8.0` | Precision imrovements, negative precision in format() |
+| `2.4` | `^8.0` | tbc |
+| `2.3` | `^7.4\|^8.0` | Precision improvements, negative precision in format() |
 | `2.2` | `^7.4\|^8.0` | Default locale |
 | `2.1` | `^7.1\|^8.0` |  |
 | `2.0` | `^7.1` | Instanceable, `format()` method, ability to specify locale |
diff --git a/composer.json b/composer.json
index 39eca07..3ea935f 100644
--- a/composer.json
+++ b/composer.json
@@ -18,10 +18,10 @@
         }
     },
     "require": {
-        "php": "^7.4|^8.0"
+        "php": "^8.0"
     },
     "require-dev": {
-        "phpunit/phpunit": "^9.0|^10.0",
+        "phpunit/phpunit": "^9.0 | ^10.0 | ^11.0",
         "php-coveralls/php-coveralls": "^2.4",
         "squizlabs/php_codesniffer": "^3.5"
     }
diff --git a/phpunit.xml.dist b/phpunit.xml
similarity index 100%
rename from phpunit.xml.dist
rename to phpunit.xml
diff --git a/src/Numerics.php b/src/Numerics.php
index cb2d5a9..314b5d9 100644
--- a/src/Numerics.php
+++ b/src/Numerics.php
@@ -15,18 +15,18 @@
 class Numerics
 {
     /** @var int $precision Default precision */
-    private $precision;
+    private int|null $precision;
     /** @var int $digits Relevant digits for floats */
-    private $digits;
+    private int $digits;
     /** @var array $localization Localization data */
-    private $localization;
+    private array $localization;
 
     /**
      * Constructor for this class
      * @param int|null    $precision Default precision
      * @param string|null $locale    Default locale to use as string
      */
-    public function __construct(?int $precision = null, ?string $locale = null)
+    public function __construct(int|null $precision = null, string|null $locale = null)
     {
         $this->precision = $precision;
         $this->digits = PHP_FLOAT_DIG;
@@ -54,7 +54,7 @@ public function setLocale(string $locale): void
      * @param  int|null $precision Precision to apply
      * @return float               Return floor with precision
      */
-    public function floor(float $number, ?int $precision = null): float
+    public function floor(float $number, int|null $precision = null): float
     {
         $f = pow(10, $precision ?? $this->precision ?? 0);
         return floor($number * $f) / $f;
@@ -66,7 +66,7 @@ public function floor(float $number, ?int $precision = null): float
      * @param  int|null $precision Precision to apply
      * @return float               Return ceil with precision
      */
-    public function ceil(float $number, ?int $precision = null): float
+    public function ceil(float $number, int|null $precision = null): float
     {
         $f = pow(10, $precision ?? $this->precision ?? 0);
         return ceil($number * $f) / $f;
@@ -76,9 +76,9 @@ public function ceil(float $number, ?int $precision = null): float
      * Round function with precision.
      * @param  float    $number    The number to apply round to
      * @param  int|null $precision Precision to apply
-     * @return float                Return round with precision
+     * @return float               Return round with precision
      */
-    public function round(float $number, ?int $precision = null): float
+    public function round(float $number, int|null $precision = null): float
     {
         return round($number, $precision ?? $this->precision ?? 0);
     }
@@ -90,7 +90,7 @@ public function round(float $number, ?int $precision = null): float
      * @param  int|null   $precision Precision to use
      * @return float|null            Random number with precision (null if not solvable)
      */
-    public function rand(float $min = 0, ?float $max = null, ?int $precision = null): ?float
+    public function rand(float $min = 0, float|null $max = null, int|null $precision = null): float|null
     {
         $rand_max = mt_getrandmax();
         $max = is_null($max) ? $rand_max : $max;
@@ -131,7 +131,7 @@ public function precision(float $number, bool $wide = false): int
      * @param  int|float|string $numeric  A numeric representation to parse
      * @return float|null                 Return as float (null if parsing failed)
      */
-    public function parse($numeric): ?float
+    public function parse($numeric): float|null
     {
         $ts_found = false;
 
@@ -200,7 +200,7 @@ public function parse($numeric): ?float
      * @param  int|null $precision Precision to use, no rounding by default
      * @return string              Numeric string
      */
-    public function format(float $number, ?int $precision = null): string
+    public function format(float $number, int|null $precision = null): string
     {
         $precision = $precision ?? $this->precision ?? $this->precision($number);
         return number_format(