diff --git a/build-common.yml b/build-common.yml
index 4737f29e39012c8260f64fdf09b039e4a56dbb6c..c3b1225e1756e4644bd734e3eb517d8903a4cd89 100644
--- a/build-common.yml
+++ b/build-common.yml
@@ -84,7 +84,7 @@ workflow:
     GITLAB_SERVER: "${CI_SERVER_HOST}:${CI_SERVER_SSH_PORT}"
     GIT_BASE_URL: "ssh://git@${GITLAB_SERVER}/${CI_PROJECT_ROOT_NAMESPACE}"
     TESTS_GIT_URL: "${GIT_BASE_URL}/yocto/tests.git"
-    TEST_REPO_BRANCH: ${MASTER_BRANCH_MANIFEST}
+    TEST_REPO_BRANCH: ${MASTER_BRANCH}
   artifacts:
     when: always
     paths:
diff --git a/build-jobs-yocto.jinja2 b/build-jobs-yocto.jinja2
index c6e8cc340c8a16dc65dc96aca543249e4466c43d..42295ef0b5fdc3747aee9b73a88f24aa492a34b8 100644
--- a/build-jobs-yocto.jinja2
+++ b/build-jobs-yocto.jinja2
@@ -21,7 +21,7 @@ stages:
   - uploadftp
 
 variables:
-  MASTER_BRANCH_MANIFEST: {{ MASTER_BRANCH_MANIFEST }}
+  MASTER_BRANCH: {{ MASTER_BRANCH }}
 
 # --------------------------------------------------------------------------------------
 # Stage: infrastructure
@@ -30,7 +30,7 @@ changelog:
   extends: .infrastructure
   script: .gitlab-ci/scripts/changelog_generator.py
               --token=${GITBOT_TOKEN}
-              --branch=${MASTER_BRANCH_MANIFEST}
+              --branch=${MASTER_BRANCH}
               > changelog.md
   artifacts:
     expire_in: 4 weeks
diff --git a/common.yml b/common.yml
index 61a01f0a9eba2fb18638224d3dad754e8c7a19e8..0d3f2fef0cfaaa4062091d0259d0de19e76d31e2 100644
--- a/common.yml
+++ b/common.yml
@@ -36,7 +36,7 @@ variables:
     - if: $CI_PIPELINE_SOURCE == "parent_pipeline"
       when: never
     # Usually run this job only on non-master branches, i.e. in merge requests
-    - if: $CI_COMMIT_REF_NAME != $MASTER_BRANCH_MANIFEST
+    - if: $CI_COMMIT_REF_NAME != $MASTER_BRANCH
     # Additionally run this job if pipeline was triggered by the API, which happens e.g.
     # when no pipeline has run in a merge request, so a full build pipeline is needed on
     # the master
diff --git a/docs/automatic-manifest-integration.md b/docs/automatic-manifest-integration.md
index 038128af712025bfc5c3e6ab70dea695eb66e35f..c018c631bea2d5c148db97a31b005e23f37c2245 100644
--- a/docs/automatic-manifest-integration.md
+++ b/docs/automatic-manifest-integration.md
@@ -188,7 +188,6 @@ the git revision in the `SRCREV.conf` file on project changes.
 
 2. Add an approriate `.gitlab-ci.yml` file. For example, copy it from the
    repository [egalxi2c][8]. Modify the following variables in the file:
-   * `MASTER_BRANCH_PROJECT`: Set the project master branch
    * `BB_RECIPE_NAME`: Set the name of the bitbake recipe
 
 3. Create a corresponding entry in the `SRCREV.conf` file of the manifest repo:\
diff --git a/manifest-integration-ci-test.yml b/manifest-integration-ci-test.yml
deleted file mode 100644
index 63e0764f6dc4ce84ec76e60de59675ef5389738a..0000000000000000000000000000000000000000
--- a/manifest-integration-ci-test.yml
+++ /dev/null
@@ -1,15 +0,0 @@
----
-include:
-  - local: manifest-integration.yml
-
-variables:
-  # FIXME: This variable is used in the manifest-integration's build stage for the
-  # trigger project. Due to a missing feature in GitLab, we cannot use any variables
-  # here and have to hard-code 'seco-ne' instead of using CI_PROJECT_ROOT_NAMESPACE.
-  # (https://gitlab.com/gitlab-org/gitlab/-/issues/249583)
-  MANIFEST_PROJECT: seco-ne/yocto/infrastructure/ci-test/minimal-manifest
-
-  # The master branch is hardcoded here, because it cannot be determined automatically.
-  # Has to be modified for new branches, e.g. new Yocto versions or fix releases.
-  MASTER_BRANCH_MANIFEST: master
-  MASTER_BRANCH_PROJECT: master
diff --git a/manifest-integration-jobs.yml.jinja2 b/manifest-integration-jobs.yml.jinja2
index 7f7253d84e767c7f7965d5380a83b0369074eaf2..19eb22d7360669efec0a04b31a0a0c9451757fdb 100644
--- a/manifest-integration-jobs.yml.jinja2
+++ b/manifest-integration-jobs.yml.jinja2
@@ -40,9 +40,9 @@ integrate:
     - .gitlab-ci/scripts/integrate_into_manifest.py
         --gitlab-url=${CI_SERVER_URL}
         --token=${GITBOT_TOKEN}
-        --manifest-project=${MANIFEST_PROJECT}
+        --manifest-project=${TARGET_PROJECT}
         --manifest-file=${MANIFEST_FILE}
-        --integration-base=${MASTER_BRANCH_MANIFEST}
+        --integration-base=${TARGET_BRANCH}
         --project=${CI_PROJECT_PATH}
         --merge-request=${MERGE_REQUEST}
         --save-revision-to=manifest_revision
@@ -61,16 +61,16 @@ merge:
   extends: .infrastructure
   stage: merge
   rules:
-    - if: $CI_COMMIT_BRANCH == $MASTER_BRANCH_PROJECT
+    - if: $CI_COMMIT_BRANCH == $SOURCE_BRANCH
   script:
     - cd ${CI_PROJECT_DIR}
     - .gitlab-ci/scripts/merge_into_manifest.py
         --gitlab-url=${CI_SERVER_URL}
         --token=${GITBOT_TOKEN}
-        --manifest-project=${MANIFEST_PROJECT}
-        --master-branch=${MASTER_BRANCH_MANIFEST}
+        --manifest-project=${TARGET_PROJECT}
+        --master-branch=${TARGET_BRANCH}
         --project=${CI_PROJECT_PATH}
-        --master-branch-project=${MASTER_BRANCH_PROJECT}
+        --master-branch-project=${SOURCE_BRANCH}
         --commit=${CI_COMMIT_SHA}
         --save-revision-to=manifest_revision
         --recipe-name=${BB_RECIPE_NAME}
@@ -90,9 +90,9 @@ build:
     - if: $CI_MERGE_REQUEST_IID
   trigger:
     # FIXME: see FIXME comments in manifest-integration-pipelines.yml.jinja2
-    # project: $MANIFEST_PROJECT
+    # project: $TARGET_PROJECT
     project: {{ TARGET_PROJECT }}
-    branch: "integrate/${CI_PROJECT_NAME}/${CI_COMMIT_REF_NAME}/into/${MASTER_BRANCH_MANIFEST}"
+    branch: "integrate/${CI_PROJECT_NAME}/${CI_COMMIT_REF_NAME}/into/${TARGET_BRANCH}"
     strategy: depend
 
 # --------------------------------------------------------------------------------------
@@ -128,8 +128,8 @@ check:
     - .gitlab-ci/scripts/check_if_integration_branch_is_up_to_date.py
         --gitlab-url=${CI_SERVER_URL}
         --token=${GITBOT_TOKEN}
-        --manifest-project=${MANIFEST_PROJECT}
-        --integration-base=${MASTER_BRANCH_MANIFEST}
+        --manifest-project=${TARGET_PROJECT}
+        --integration-base=${TARGET_BRANCH}
         --project=${CI_PROJECT_PATH}
         --merge-request=${MERGE_REQUEST}
         --verbose
diff --git a/manifest-integration-pipelines.yml.jinja2 b/manifest-integration-pipelines.yml.jinja2
index 6f8406dc28c2fd44f77415c242bf882119bde122..dab38b5514588f9afb58e2b6c51239fa8f4ef852 100644
--- a/manifest-integration-pipelines.yml.jinja2
+++ b/manifest-integration-pipelines.yml.jinja2
@@ -56,9 +56,9 @@ generate:
   needs:
     - generate
   variables:
-    MASTER_BRANCH_PROJECT: {{ SOURCE_BRANCH }}
-    MANIFEST_PROJECT: {{ TARGET_PROJECT }}
-    MASTER_BRANCH_MANIFEST: {{ TARGET_BRANCH }}
+    SOURCE_BRANCH: {{ SOURCE_BRANCH }}
+    TARGET_PROJECT: {{ TARGET_PROJECT }}
+    TARGET_BRANCH: {{ TARGET_BRANCH }}
     GITLAB_CI_REVISION: {{ GITLAB_CI_REVISION }}
     MANIFEST_FILE: {{ MANIFEST_FILE }}
     BB_RECIPE_NAME: {{ BB_RECIPE_NAME }}
diff --git a/manifest-integration-yocto.yml b/manifest-integration-yocto.yml
deleted file mode 100644
index e094eb75624d6bc02f9f4898d3c00253f70b7aa9..0000000000000000000000000000000000000000
--- a/manifest-integration-yocto.yml
+++ /dev/null
@@ -1,15 +0,0 @@
----
-include:
-  - local: manifest-integration.yml
-
-variables:
-  # FIXME: This variable is used in the manifest-integration's build stage for the
-  # trigger project. Due to a missing feature in GitLab, we cannot use any variables
-  # here and have to hard-code 'seco-ne' instead of using CI_PROJECT_ROOT_NAMESPACE.
-  # (https://gitlab.com/gitlab-org/gitlab/-/issues/249583)
-  MANIFEST_PROJECT: seco-ne/yocto/manifest
-
-  # The master branch is hardcoded here, because it cannot be determined automatically.
-  # Has to be modified for new branches, e.g. new Yocto versions or fix releases.
-  MASTER_BRANCH_MANIFEST: dunfell
-  MASTER_BRANCH_PROJECT: dunfell
diff --git a/manifest-pipeline-ci-test.yml b/manifest-pipeline-ci-test.yml
index c5b9f7d6e41bd42b75ebbad320d6de28f5877a32..9ecd5a278b3d6e88599e12f659a11adc4aa63c0a 100644
--- a/manifest-pipeline-ci-test.yml
+++ b/manifest-pipeline-ci-test.yml
@@ -20,5 +20,4 @@ variables:
 
   # The master branch is hardcoded here, because it cannot be determined automatically.
   # Has to be modified for new branches, e.g. new Yocto versions or fix releases.
-  MASTER_BRANCH_MANIFEST: master
-  MASTER_BRANCH_PROJECT: master
+  MASTER_BRANCH: master
diff --git a/manifest-pipeline.yml b/manifest-pipeline.yml
index 05dcf8124b815a1433a0fcc47c17061e855c657b..778775798ffb1d51e95e414aa27fb56b0db31f74 100644
--- a/manifest-pipeline.yml
+++ b/manifest-pipeline.yml
@@ -33,7 +33,7 @@ workflow:
   rules:
     # Run the full build pipeline on non-master branches (i.e. in the merge request)
     # or if explicitly triggered by the API or the web button.
-    - if: $CI_COMMIT_REF_NAME != $MASTER_BRANCH_MANIFEST
+    - if: $CI_COMMIT_REF_NAME != $MASTER_BRANCH
     - if: $CI_PIPELINE_SOURCE == "api"
     - if: $CI_PIPELINE_SOURCE == "pipeline"
     - if: $CI_PIPELINE_SOURCE == "web"
@@ -49,7 +49,7 @@ workflow:
       when: never
     - if: $CI_PIPELINE_SOURCE == "web"
       when: never
-    - if: $CI_COMMIT_REF_NAME == $MASTER_BRANCH_MANIFEST
+    - if: $CI_COMMIT_REF_NAME == $MASTER_BRANCH
 
 # --------------------------------------------------------------------------------------
 # Stage: retrigger
@@ -77,7 +77,7 @@ retrigger:
           --token=${GITBOT_TOKEN}
           --project=${PROJECT}
           --state=opened
-          --target-branch=${MASTER_BRANCH_MANIFEST}
+          --target-branch=${MASTER_BRANCH}
           --job=check
         ;
       done
@@ -137,7 +137,7 @@ build:merge_request:
         --token=${GITBOT_TOKEN}
         --project=${CI_PROJECT_PATH}
         --commit=${CI_COMMIT_SHA}
-        --ref=^${MASTER_BRANCH_MANIFEST} || true | head -1)
+        --ref=^${MASTER_BRANCH} || true | head -1)
     # If pipeline exists, mirror its result
     - if [ ! -z "${MR_PIPELINE}" ]; then
         .gitlab-ci/scripts/mirror_pipeline_result.py
@@ -151,5 +151,5 @@ build:merge_request:
           --gitlab-url=${CI_SERVER_URL}
           --token=${GITBOT_TOKEN}
           --project=${CI_PROJECT_PATH}
-          --ref=${MASTER_BRANCH_MANIFEST}
+          --ref=${MASTER_BRANCH}
     - fi
diff --git a/scripts/deploy_gitlab_ci.py b/scripts/deploy_gitlab_ci.py
index a24b45aed894c254b13001ef5c66ee45eadf6cb9..b05e770710d54a1481ace2b490c60aa23505b367 100755
--- a/scripts/deploy_gitlab_ci.py
+++ b/scripts/deploy_gitlab_ci.py
@@ -26,17 +26,12 @@ def read_keys_from_gitlab_ci_yml(gitlab_ci_yml):
     data = yaml.load(gitlab_ci_yml)
     logging.debug("Yaml: %s", data)
 
-    try:
-        masterbranch = data["variables"]["MASTER_BRANCH_PROJECT"]
-        logging.debug("Masterbranch %s", masterbranch)
-    except KeyError:
-        masterbranch = None
     try:
         recipe = data["variables"]["BB_RECIPE_NAME"]
         logging.debug("Recipe %s", recipe)
     except KeyError:
         recipe = None
-    return {"recipe": recipe, "masterbranch": masterbranch}
+    return {"recipe": recipe}
 
 
 def integrate_submodule_into(