diff --git a/tasks/libs/ciproviders/gitlab_api.py b/tasks/libs/ciproviders/gitlab_api.py
index ea810594012df1..a6f83c10af4fdf 100644
--- a/tasks/libs/ciproviders/gitlab_api.py
+++ b/tasks/libs/ciproviders/gitlab_api.py
@@ -16,6 +16,7 @@
 from difflib import Differ
 from functools import lru_cache
 from itertools import product
+from pathlib import Path
 from typing import Any, Literal
 
 import gitlab
@@ -1300,6 +1301,18 @@ def update_test_infra_def(file_path, image_tag, is_dev_image=False, prefix_comme
         yaml.dump(test_infra_def, test_infra_version_file, explicit_start=True)
 
 
+def get_test_infra_def_version():
+    """
+    Get TEST_INFRA_DEFINITIONS_BUILDIMAGES from `.gitlab/common/test_infra_version.yml` file
+    """
+    try:
+        version_file = Path.cwd() / ".gitlab" / "common" / "test_infra_version.yml"
+        test_infra_def = yaml.safe_loads(version_file.read_text(encoding="utf-8"))
+        return test_infra_def["variables"]["TEST_INFRA_DEFINITIONS_BUILDIMAGES"]
+    except Exception:
+        return "main"
+
+
 def update_gitlab_config(file_path, tag, images="", test=True, update=True, windows=False):
     """
     Override variables in .gitlab-ci.yml file.
diff --git a/tasks/libs/releasing/json.py b/tasks/libs/releasing/json.py
index 50fe373fd1b2ce..64ae269fe3685a 100644
--- a/tasks/libs/releasing/json.py
+++ b/tasks/libs/releasing/json.py
@@ -6,6 +6,7 @@
 
 from invoke.exceptions import Exit
 
+from tasks.libs.ciproviders.gitlab_api import get_test_infra_def_version
 from tasks.libs.common.constants import TAG_FOUND_TEMPLATE
 from tasks.libs.common.git import get_default_branch, is_agent6
 from tasks.libs.releasing.documentation import _stringify_config
@@ -35,11 +36,12 @@
 INTERNAL_DEPS_REPOS = ["omnibus-ruby"]
 DEPENDENT_REPOS = INTERNAL_DEPS_REPOS + ["integrations-core"]
 ALL_REPOS = DEPENDENT_REPOS + [UNFREEZE_REPO_AGENT]
-UNFREEZE_REPOS = INTERNAL_DEPS_REPOS + [UNFREEZE_REPO_AGENT] + ["datadog-agent-buildimages"]
+UNFREEZE_REPOS = INTERNAL_DEPS_REPOS + [UNFREEZE_REPO_AGENT] + ["datadog-agent-buildimages", "test-infra-definitions"]
 DEFAULT_BRANCHES = {
     "omnibus-ruby": "datadog-5.5.0",
     "datadog-agent": "main",
     "datadog-agent-buildimages": "main",
+    "test-infra-definitions": get_test_infra_def_version(),
 }
 DEFAULT_BRANCHES_AGENT6 = {
     "omnibus-ruby": "6.53.x",
diff --git a/tasks/release.py b/tasks/release.py
index 712c902eeaa542..38502e13426a90 100644
--- a/tasks/release.py
+++ b/tasks/release.py
@@ -761,7 +761,7 @@ def _main():
                 or ctx.run(f"git remote show {upstream} | grep \"HEAD branch\" | sed 's/.*: //'").stdout.strip()
             )
             ctx.run(f"git checkout {main_branch}")
-            ctx.run("git pull")
+            ctx.run("git pull", warn=True)
 
             _main()
 
@@ -816,9 +816,8 @@ def create_release_branches(
 
         # Step 1 - Create release branches in all required repositories
 
-        base_branch = get_default_branch() if major_version == 6 else None
-
         for repo in UNFREEZE_REPOS:
+            base_branch = get_default_branch() if major_version == 6 else DEFAULT_BRANCHES[repo]
             create_and_update_release_branch(
                 ctx, repo, release_branch, base_branch=base_branch, base_directory=base_directory, upstream=upstream
             )