diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
new file mode 100644
index 0000000..7dc7bb4
--- /dev/null
+++ b/.github/workflows/tests.yml
@@ -0,0 +1,36 @@
+name: Unit tests
+on: push
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        php-versions: ['8.2']
+
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: ${{ matrix.php-versions }}
+          extensions: mbstring, dom, fileinfo # Add your extensions here.
+          coverage: xdebug
+
+      - name: Get composer cache directory
+        id: composer-cache
+        run: echo "dir=$(composer config cache-files-dir)" >> $GITHUB_OUTPUT
+
+      - name: Cache dependencies
+        uses: actions/cache@v3
+        with:
+          path: ${{ steps.composer-cache.outputs.dir }}
+          key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
+          restore-keys: ${{ runner.os }}-composer-
+
+      - name: Prepare tests
+        run: composer run-script tests_prepare
+
+#      - name: Run tests
+#        run: composer run-script tests_run
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9c50003..fc441b9 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -11,7 +11,11 @@ variables:
 
 before_script:
   - apt-get update -yqq
-  - apt-get install git -yqq
+  - apt-get install git iputils-ping wget -yqq
+  - ping -c 1 1.1.1.1 || true
+  - ping -c 1 example.com || true
+  - ping -c 1 github.com || true
+  - ping -c 1 dl-cdn.alpinelinux.org || true
   - curl -sS https://getcomposer.org/installer | php
   - mv composer.phar /usr/local/bin/composer
   - curl --location --output /usr/local/bin/phpunit https://phar.phpunit.de/phpunit.phar
@@ -19,17 +23,17 @@ before_script:
   - mv /usr/local/etc/php/php.ini-development /usr/local/etc/php/php.ini
   - echo "memory_limit = -1" > /usr/local/etc/php/conf.d/test.ini
 
-test:php-7.3:
+test:php-8.0:
   stage: test
-  image: php:7.3
+  image: php:8.0
   script:
     - bash ./bin/prepare_tests.sh && bash ./bin/run_tests.sh
   tags:
     - sdo-docker-runner
 
-test:php-7.4:
+test:php-8.1:
   stage: test
-  image: php:7.4
+  image: php:8.1
   script:
     - bash ./bin/prepare_tests.sh && bash ./bin/run_tests.sh
   tags:
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 3277176..0000000
--- a/.travis.yml
+++ /dev/null
@@ -1,20 +0,0 @@
-language: php
-
-# list any PHP version you want to test against
-php:
-  # using major version aliases
-
-  - 7.3
-  - 7.4
-
-install:
-  - sh ./bin/prepare_tests.sh
-
-# omitting "script:" will default to phpunit
-# use the $DB env variable to determine the phpunit.xml to use
-script: phpunit --configuration phpunit.xml.dist --coverage-text test
-
-notifications:
-  email:
-    on_success: change
-    on_failure: change
\ No newline at end of file
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 05cc17c..1c7ff5f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,7 +6,11 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
-## [2.0.0]
+### [3.0.0] - 2021-MM-DD
+
+- Supports PHP ~v8.0 only.
+
+## [2.0.1] - 2020-10-06
 
 This version will not be backwards compatible with Version 1.x. 
 
diff --git a/README.md b/README.md
index e80f8e0..3f86d5e 100644
--- a/README.md
+++ b/README.md
@@ -6,10 +6,9 @@ This is a PHP package for accessing [Seafile Web API](https://www.seafile.com/).
 
 No marketing skills whatsoever, but low rates, 20+ years of experience, and "german work attitude" -- whatever you associate with that.
 
-Get in touch now: https://sdo.sh/DevOps/#contact
+Get in touch now: https://sdo.sh/#contact
 
-[![Build Status](https://travis-ci.org/Schmidt-DevOps/Seafile-PHP-SDK.svg?branch=develop)](https://travis-ci.org/Schmidt-DevOps/Seafile-PHP-SDK)
-[![Test Coverage](https://codeclimate.com/github/rene-s/Seafile-PHP-SDK/badges/coverage.svg)](https://codeclimate.com/github/rene-s/Seafile-PHP-SDK/coverage)
+[![Unit tests](https://github.com/Schmidt-DevOps/Seafile-PHP-SDK/actions/workflows/tests.yml/badge.svg)](https://github.com/Schmidt-DevOps/Seafile-PHP-SDK/actions/workflows/tests.yml)
 [![License](https://img.shields.io/badge/License-MIT-blue.svg)](https://opensource.org/licenses/MIT)
 
 ## What is Seafile?
@@ -344,24 +343,24 @@ $client = new Client(
 
 ## Dependencies
 
-- PHP >=7.3 64 bits
-- Guzzle 6
+- PHP >=8.0 64 bits
+- Guzzle 7.2
 
 ## Seafile Web API Support Matrix
 
-| Resource               | Web API Version | Support grade |
-| ---------------------- | --------------- | ------------- |
-| Account                | v2              | ★★★☆          |
-| Avatar                 | v2.1            | ★★★★          |
+| Resource               | Web API Version | Support grade                                         |
+|------------------------|-----------------|-------------------------------------------------------|
+| Account                | v2              | ★★★☆                                                  |
+| Avatar                 | v2.1            | ★★★★                                                  |
 | Events                 | v2              | Yet to be done, [contact me](mailto:rene+_gth@sdo.sh) |
-| File Share Link        | v2.1            | ★★★☆          |
-| Group                  | v2              | ★☆☆☆          |
-| Library/Directory      | v2              | ★★☆☆          |
-| Library/File           | v2              | ★★☆☆          |
-| Library/Library        | v2              | ★★☆☆          |
-| Library/Multiple Files | v2              | ★★★★          |
+| File Share Link        | v2.1            | ★★★☆                                                  |
+| Group                  | v2              | ★☆☆☆                                                  |
+| Library/Directory      | v2              | ★★☆☆                                                  |
+| Library/File           | v2              | ★★☆☆                                                  |
+| Library/Library        | v2              | ★★☆☆                                                  |
+| Library/Multiple Files | v2              | ★★★★                                                  |
 | Organization           | v2              | Yet to be done, [contact me](mailto:rene+_gth@sdo.sh) |
-| Starred Files          | v2              | ★★★★          |
+| Starred Files          | v2              | ★★★★                                                  |
 
 ## Seafile server compatibility
 
@@ -371,7 +370,11 @@ Tested with:
 - ~~Seafile Server 5.1.3 for generic Linux/Debian Wheezy~~
 - ~~Seafile Server 5.1.4 for generic Linux/Ubuntu Xenial~~
 - ~~Seafile Server 6.0.3 for generic Linux/Ubuntu Xenial~~
-- Seafile Server 7.1.4 for Ubuntu 20.04 LTS
+- Seafile Server 7.x+ for Ubuntu 20.04 LTS
+
+## Support
+
+I'd be happy to implement new features for you at a competitive hourly rate. Get in touch now: https://sdo.sh/#contact
 
 ## Contributing
 
@@ -388,7 +391,7 @@ Please note that this package still is in its infancy. Only a part of the API ha
 There are two types of tests:
 
 1. Unit tests that test a code unit without external dependencies and no data manipulation. Please always provide at least unit tests when contributing.
-1. Functional tests that run against a live server instance (=may have external dependencies) and also alter data. Disabled and thus skipped by default. Please refer to `/phpunit/php` in `phpunit.xml.dist` for information on how to enable functional tests.
+2. Functional tests that run against a live server instance (=may have external dependencies) and also alter data. Disabled and thus skipped by default. Please refer to `/phpunit/php` in `phpunit.xml.dist` for information on how to enable functional tests.
 
 ## Links
 
@@ -400,4 +403,4 @@ There are two types of tests:
 
 ## License
 
-[MIT](https://raw.githubusercontent.com/rene-s/seafile-php-sdk/master/LICENSE) © 2015-2020 Rene Schmidt DevOps UG (haftungsbeschränkt) & Co. KG
+[MIT](https://raw.githubusercontent.com/rene-s/seafile-php-sdk/master/LICENSE) © 2015-2023 Rene Schmidt DevOps UG (haftungsbeschränkt) & Co. KG
diff --git a/bin/run_tests.sh b/bin/run_tests.sh
index 42949a5..58583e8 100755
--- a/bin/run_tests.sh
+++ b/bin/run_tests.sh
@@ -9,7 +9,6 @@ size=`stat --printf="%s" $file 2>/dev/null`
 
 if [ ! -f $file ] || [ $size -eq 0 ]; then
     wget $url -O $file
-
 fi
 
 if [ -f $file ]; then
diff --git a/composer.json b/composer.json
index 3a12663..857b59d 100644
--- a/composer.json
+++ b/composer.json
@@ -21,20 +21,19 @@
     "encrypted"
   ],
   "require": {
-    "php": ">=7.3",
-    "guzzlehttp/guzzle": "~6.0|~7.0",
-    "nabil1337/case-helper": "~0.1",
+    "php": ">=8.2",
+    "guzzlehttp/guzzle": "~7.7",
+    "marcusball/case-helper": "~0.2",
     "ext-json": "*",
-    "sdo/bitmask": "^1.0"
+    "sdo/bitmask": "~1.0"
   },
   "require-dev": {
-    "monolog/monolog": "~1.17",
-    "phpunit/phpunit": "~8.0",
-    "phpunit/php-token-stream": "~3.0",
-    "sebastian/phpcpd": "~4.0",
-    "squizlabs/php_codesniffer": "~3.2",
-    "phpunit/php-timer": "~2.0",
-    "fzaninotto/faker": "^1.9"
+    "monolog/monolog": " ~2.9",
+    "phpunit/phpunit": "~9.6",
+    "sebastian/phpcpd": "~6.0",
+    "squizlabs/php_codesniffer": "~3.7",
+    "phpunit/php-timer": "~5.0",
+    "fzaninotto/faker": "~1.5"
   },
   "type": "library",
   "autoload": {
@@ -47,5 +46,9 @@
       "Seafile\\Client\\Tests\\Functional\\": "test/functional",
       "Seafile\\Client\\Tests\\Unit\\": "test/unit"
     }
+  },
+  "scripts": {
+    "tests_prepare": "./bin/prepare_tests.sh",
+    "tests_run": "./bin/run_tests.sh"
   }
 }
diff --git a/src/Http/Client.php b/src/Http/Client.php
index 8f03397..d2db6bc 100644
--- a/src/Http/Client.php
+++ b/src/Http/Client.php
@@ -2,6 +2,7 @@
 
 namespace Seafile\Client\Http;
 
+use GuzzleHttp\Exception\GuzzleException;
 use Psr\Http\Message\ResponseInterface;
 use Psr\Http\Message\UriInterface;
 
@@ -42,8 +43,9 @@ public function __construct(array $config = [])
 
     /**
      * @param string|UriInterface $uri URI for request
-     * @param array $args Request args
+     * @param array $options
      * @return ResponseInterface
+     * @throws GuzzleException
      */
     public function get($uri, array $options = []): ResponseInterface
     {
@@ -52,8 +54,9 @@ public function get($uri, array $options = []): ResponseInterface
 
     /**
      * @param string|UriInterface $uri URI for request
-     * @param array $args Request args
+     * @param array $options
      * @return ResponseInterface
+     * @throws GuzzleException
      */
     public function put($uri, array $options = []): ResponseInterface
     {
@@ -62,8 +65,9 @@ public function put($uri, array $options = []): ResponseInterface
 
     /**
      * @param string|UriInterface $uri URI for request
-     * @param array $args Request args
+     * @param array $options
      * @return ResponseInterface
+     * @throws GuzzleException
      */
     public function delete($uri, array $options = []): ResponseInterface
     {
diff --git a/src/Resource/File.php b/src/Resource/File.php
index 92e1fbe..50b793f 100644
--- a/src/Resource/File.php
+++ b/src/Resource/File.php
@@ -92,11 +92,11 @@ protected function urlEncodePath(string $path)
      * @throws GuzzleException
      */
     public function downloadFromDir(
-        LibraryType $library,
+        LibraryType   $library,
         DirectoryItem $item,
-        string $localFilePath,
-        string $dir,
-        int $reuse = 1
+        string        $localFilePath,
+        string        $dir,
+        int           $reuse = 1
     ): ResponseInterface
     {
         if (is_readable($localFilePath)) {
@@ -184,8 +184,8 @@ public function getUploadUrl(LibraryType $library, bool $newFile = true, string
     public function getMultiPartParams(
         string $localFilePath,
         string $dir,
-        bool $newFile = true,
-        $newFilename = false
+        bool   $newFile = true,
+               $newFilename = false
     ): array
     {
         if ($newFilename === false) {
@@ -240,10 +240,10 @@ public function getMultiPartParams(
      */
     public function upload(
         LibraryType $library,
-        string $localFilePath,
-        string $dir = '/',
-        $newFilename = false,
-        bool $newFile = true
+        string      $localFilePath,
+        string      $dir = '/',
+                    $newFilename = false,
+        bool        $newFile = true
     ): ResponseInterface
     {
         if (!is_readable($localFilePath)) {
@@ -389,10 +389,10 @@ public function rename(LibraryType $library, DirectoryItem $dirItem, string $new
      */
     public function copy(
         LibraryType $srcLibrary,
-        string $srcFilePath,
+        string      $srcFilePath,
         LibraryType $dstLibrary,
-        string $dstDirectoryPath,
-        int $operation = self::OPERATION_COPY
+        string      $dstDirectoryPath,
+        int         $operation = self::OPERATION_COPY
     ): bool
     {
         // do not allow empty paths
@@ -453,9 +453,9 @@ public function copy(
      */
     public function move(
         LibraryType $srcLibrary,
-        string $srcFilePath,
+        string      $srcFilePath,
         LibraryType $dstLibrary,
-        string $dstDirectoryPath
+        string      $dstDirectoryPath
     ): bool
     {
         return $this->copy($srcLibrary, $srcFilePath, $dstLibrary, $dstDirectoryPath, self::OPERATION_MOVE);
@@ -472,8 +472,8 @@ public function move(
      * @throws GuzzleException
      */
     public function getFileRevisionDownloadUrl(
-        LibraryType $library,
-        DirectoryItem $dirItem,
+        LibraryType     $library,
+        DirectoryItem   $dirItem,
         FileHistoryItem $fileHistoryItem
     )
     {
@@ -501,10 +501,10 @@ public function getFileRevisionDownloadUrl(
      * @throws GuzzleException
      */
     public function downloadRevision(
-        LibraryType $library,
-        DirectoryItem $dirItem,
+        LibraryType     $library,
+        DirectoryItem   $dirItem,
         FileHistoryItem $fileHistoryItem,
-        string $localFilePath
+        string          $localFilePath
     ): ResponseInterface
     {
         $downloadUrl = $this->getFileRevisionDownloadUrl($library, $dirItem, $fileHistoryItem);
diff --git a/src/Resource/Multi.php b/src/Resource/Multi.php
index c84f1e3..ab7884b 100644
--- a/src/Resource/Multi.php
+++ b/src/Resource/Multi.php
@@ -41,9 +41,9 @@ class Multi extends Resource
      */
     public function move(
         LibraryType $srcLibrary,
-        array $srcPaths,
+        array       $srcPaths,
         LibraryType $dstLibrary,
-        string $dstDirectoryPath
+        string      $dstDirectoryPath
     ): bool
     {
         return $this->copy($srcLibrary, $srcPaths, $dstLibrary, $dstDirectoryPath, self::OPERATION_MOVE);
@@ -63,10 +63,10 @@ public function move(
      */
     public function copy(
         LibraryType $srcLibrary,
-        array $srcPaths,
+        array       $srcPaths,
         LibraryType $dstLibrary,
-        string $dstDirectoryPath,
-        int $operation = self::OPERATION_COPY
+        string      $dstDirectoryPath,
+        int         $operation = self::OPERATION_COPY
     ): bool
     {
         // do not allow empty paths
diff --git a/src/Resource/ShareLinks.php b/src/Resource/ShareLinks.php
index 46d4b95..acafb66 100644
--- a/src/Resource/ShareLinks.php
+++ b/src/Resource/ShareLinks.php
@@ -87,11 +87,11 @@ public function remove(SharedLinkType $sharedLinkType): bool
      * @throws Exception
      */
     public function create(
-        LibraryType $library,
-        string $path,
+        LibraryType           $library,
+        string                $path,
         SharedLinkPermissions $permissions,
-        int $expire = null,
-        string $password = null
+        int                   $expire = null,
+        string                $password = null
     ): ?SharedLinkType
     {
         $uri = sprintf(