diff --git a/.github/workflows/tests.yml b/.github/workflows/tests.yml
index 182c67c7..228d6d56 100644
--- a/.github/workflows/tests.yml
+++ b/.github/workflows/tests.yml
@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
 
       - name: Setup PHP
         uses: shivammathur/setup-php@v2
@@ -31,3 +31,20 @@ jobs:
 
       - name: Run PHPUnit
         run: ./vendor/bin/phpunit
+
+  php-cs-fixer:
+    name: PHP-CS-Fixer
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v5
+      - uses: actions/cache@v4
+        with:
+          path: .php-cs-fixer.cache
+          key: ${{ runner.OS }}-${{ github.repository }}-phpcsfixer-${{ github.sha }}
+          restore-keys: |
+            ${{ runner.OS }}-${{ github.repository }}-phpcsfixer-
+
+      - name: PHP-CS-Fixer
+        uses: docker://oskarstark/php-cs-fixer-ga
+        with:
+          args: -v --diff --dry-run
diff --git a/.travis.yml b/.travis.yml
deleted file mode 100644
index 1db343e2..00000000
--- a/.travis.yml
+++ /dev/null
@@ -1,12 +0,0 @@
-language: php
-install: composer install
-script:
-  - ./disallowtabs.sh
-  - ./csfixer-check.sh
-  - ./phplint.sh ./lib/
-  - ./vendor/bin/phpunit
-dist: bionic
-php:
-  - '8.0'
-  - '8.1.0'
-  - '8.2.0'
diff --git a/README.md b/README.md
index c14ea9d6..84c3e1dd 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # PHP FinTS/HBCI library
 
-[![Build Status](https://travis-ci.org/nemiah/phpFinTS.svg?branch=master)](https://travis-ci.org/nemiah/phpFinTS)
+[![CI status](https://github.com/nemiah/phpFinTS/actions/workflows/tests.yml/badge.svg)](https://github.com/nemiah/phpFinTS/actions/workflows/tests.yml)
 
 A PHP library implementing the following functions of the FinTS/HBCI protocol:
 
diff --git a/csfixer-check.sh b/csfixer-check.sh
deleted file mode 100755
index 9c76ae32..00000000
--- a/csfixer-check.sh
+++ /dev/null
@@ -1,36 +0,0 @@
-#!/bin/bash
-#
-# When this is run as part of a Travis test for a pull request, then it ensures that none of the touched files has any
-# PHP CS Fixer warnings.
-# From: https://github.com/FriendsOfPHP/PHP-CS-Fixer#using-php-cs-fixer-on-ci
-
-if [ -z "$TRAVIS_COMMIT_RANGE" ]
-then
-# TRAVIS_COMMIT_RANGE "is empty for builds triggered by the initial commit of a new branch"
-# From: https://docs.travis-ci.com/user/environment-variables/
-  echo "Variable TRAVIS_COMMIT_RANGE not set, falling back to full git diff"
-  TRAVIS_COMMIT_RANGE=.
-fi
-
-IFS='
-'
-CHANGED_FILES=$(git diff --name-only --diff-filter=ACMRTUXB "$TRAVIS_COMMIT_RANGE")
-if [ "$?" -ne "0" ]
-then
-  echo "Error: git diff response code > 0, aborting"
-  exit 1
-fi
-
-if [ -z "${CHANGED_FILES}" ]
-then
-  echo "0 changed files found, exiting"
-  exit 0
-fi
-
-# February 2022: PHP CS FIXER is currently not PHP 8.1 compatible:
-# "you may experience code modified in a wrong way"
-# "To ignore this requirement please set `PHP_CS_FIXER_IGNORE_ENV`."
-export PHP_CS_FIXER_IGNORE_ENV="1"
-
-if ! echo "${CHANGED_FILES}" | grep -qE "^(\\.php_cs(\\.dist)?|composer\\.lock)$"; then EXTRA_ARGS=$(printf -- '--path-mode=intersection\n--\n%s' "${CHANGED_FILES}"); else EXTRA_ARGS=''; fi
-vendor/bin/php-cs-fixer fix --config=.php-cs-fixer.php -v --dry-run --stop-on-violation --using-cache=no ${EXTRA_ARGS} || (echo "php-cs-fixer failed" && exit 1)
\ No newline at end of file
diff --git a/disallowtabs.sh b/disallowtabs.sh
deleted file mode 100755
index 3d91702f..00000000
--- a/disallowtabs.sh
+++ /dev/null
@@ -1,37 +0,0 @@
-#!/bin/bash
-#
-# When this is run as part of a Travis test for a pull request, then it ensures that none of the added lines (compared
-# to the base branch of the pull request) use tabs for indentations.
-# Adapted from https://github.com/mrc/git-hook-library/blob/master/pre-commit.no-tabs
-
-# Abort if any of the inner commands (particularly the git commands) fails.
-set -e
-set -o pipefail
-
-if [ -z ${TRAVIS_PULL_REQUEST} ]; then
-    echo "Expected environment variable TRAVIS_PULL_REQUEST"
-    exit 2
-elif [ "${TRAVIS_PULL_REQUEST}" == "false" ]; then
-    echo "Not a Travis pull request, skipping."
-    exit 0
-fi
-
-# Make sure that we have a local copy of the relevant commits (otherwise git diff won't work).
-git remote set-branches --add origin ${TRAVIS_BRNACH}
-git fetch
-
-# Compute the diff from the PR's target branch to its HEAD commit.
-target_branch="origin/${TRAVIS_BRANCH}"
-the_diff=$(git diff "${target_branch}...HEAD")
-
-# Make sure that there are no tabs in the indentation part of added lines.
-if echo "${the_diff}" | egrep '^\+\s*	' >/dev/null; then
-    echo -e "\e[31mError: The changes contain a tab for indentation\e[0m, which is against this repo's policy."
-    echo "Target branch: origin/${TRAVIS_BRANCH}"
-    echo "Commit range: ${TRAVIS_COMMIT_RANGE}"
-    echo "The following tabs were detected:"
-    echo "${the_diff}" | egrep '^(\+\s*	|\+\+\+|@@)'
-    exit 1
-else
-    echo "No new tabs detected."
-fi
diff --git a/lib/Fhp/Action/SendSEPADirectDebit.php b/lib/Fhp/Action/SendSEPADirectDebit.php
index 94630204..0976ed4f 100644
--- a/lib/Fhp/Action/SendSEPADirectDebit.php
+++ b/lib/Fhp/Action/SendSEPADirectDebit.php
@@ -11,8 +11,10 @@
 use Fhp\Segment\Common\Kti;
 use Fhp\Segment\DME\HIDMESv1;
 use Fhp\Segment\DME\HIDMESv2;
+use Fhp\Segment\DME\HKDMEv2;
 use Fhp\Segment\DSE\HIDSESv2;
 use Fhp\Segment\DSE\HIDXES;
+use Fhp\Segment\DSE\HKDSEv2;
 use Fhp\Segment\SPA\HISPAS;
 use Fhp\Syntax\Bin;
 use Fhp\UnsupportedException;
@@ -159,7 +161,7 @@ protected function createRequest(BPD $bpd, ?UPD $upd)
                 . implode(', ', $supportedPainNamespaces));
         }
 
-        /** @var mixed $hkdxe */ // TODO Put a new interface type here.
+        /** @var HKDMEv2|HKDSEv2|HIDXES $hkdxe */
         $hkdxe = $hidxes->createRequestSegment();
         $hkdxe->kontoverbindungInternational = Kti::fromAccount($this->account);
         $hkdxe->sepaDescriptor = $this->painNamespace;