diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 01bc9ebc57390a5b46ccd2c3f9dd1780e5cb6160..bc244d486167c9d7a6dc69c3b963f695260b5652 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -29,7 +29,7 @@ jobs:
       fail-fast: false
       matrix:
         os: ["windows-latest", "ubuntu-latest", "macos-latest"]
-        python-version: ["3.7", "3.8", "3.9", "3.10"]
+        python-version: ["3.8", "3.9", "3.10"]
     defaults:
       run:
         # somehow this also works for windows O.o ??
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4baa4b8323aa502653e7cfeac2bbec66f5e0afaa..f7334504d8b6fb9a51dfaaf45b0c33007073bbad 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,7 +7,14 @@ SPDX-License-Identifier: GPL-3.0-or-later
 # Changelog
 
 ## Unreleased
-[List of commits](https://git.ufz.de/rdm-software/saqc/-/compare/v2.2.1...develop)
+[List of commits](https://git.ufz.de/rdm-software/saqc/-/compare/v2.3.0...develop)
+### Added
+### Changed
+### Removed
+### Fixed
+
+## [2.3.0](https://git.ufz.de/rdm-software/saqc/-/tags/v2.3.0) - 2023-01-17
+[List of commits](https://git.ufz.de/rdm-software/saqc/-/compare/v2.2.1...v2.3.0)
 ### Added
 - add option to not overwrite existing flags to `concatFlags`
 - add option to pass existing axis object to `plot`
@@ -18,6 +25,7 @@ SPDX-License-Identifier: GPL-3.0-or-later
 - Renamed `TranslationScheme.backward` to `TranslationScheme.toExternal` 
 - Changed default value of the parameter `limit` for `SaQC.interpolateIndex` and `SaQC.interpolateInvalid` to ``None``
 - Changed default value of the parameter ``overwrite`` for ``concatFlags`` to ``False``
+- Deprecate ``transferFlags`` in favor of ``concatFlags``
 ### Removed
 - python 3.7 support
 ### Fixed
diff --git a/saqc/funcs/flagtools.py b/saqc/funcs/flagtools.py
index d253dc8ffaa12eaceb8f90af35f65c764a88b0cf..80420a1cdd18ac939a7981a0cda961219e263b3a 100644
--- a/saqc/funcs/flagtools.py
+++ b/saqc/funcs/flagtools.py
@@ -396,7 +396,15 @@ class FlagtoolsMixin:
            0         -inf   -inf   -inf
            1        255.0  255.0  255.0
         """
-
+        import warnings
+
+        warnings.warn(
+            f"""The method 'transferFlags' is deprecated and
+            will be removed in version 2.5 of SaQC. Please use
+            'SaQC.concatFlags(field={field}, target={target}, method="match", squeeze=False)'
+            instead""",
+            DeprecationWarning,
+        )
         return self.concatFlags(field, target=target, method="match", squeeze=False)
 
     @flagging()
diff --git a/saqc/funcs/tools.py b/saqc/funcs/tools.py
index 87ad8ec3e7ba078f9678fe17a639df9420e2a736..9888bb1ff43b98b84627fd7f51170b676bba2267 100644
--- a/saqc/funcs/tools.py
+++ b/saqc/funcs/tools.py
@@ -327,7 +327,7 @@ class ToolsMixin:
             ax_kwargs=ax_kwargs,
         )
 
-        if ax is None:
+        if ax is None and not path:
             plt.show()
 
         if path:
diff --git a/saqc/version.py b/saqc/version.py
index 3fc91745645de82dd25ce9f476c8eee8b550ba2e..c6bcb9ba1c43f4e3712d66a61aec0dfce5187bb3 100644
--- a/saqc/version.py
+++ b/saqc/version.py
@@ -4,4 +4,4 @@
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-__version__ = "2.2.1"
+__version__ = "2.3"
diff --git a/tests/funcs/test_functions.py b/tests/funcs/test_functions.py
index 4ef82002ab488b0322ba50f531fcc03063a38231..53c13a6deac9909b23ae0c85b591fa6a7aa301e8 100644
--- a/tests/funcs/test_functions.py
+++ b/tests/funcs/test_functions.py
@@ -286,9 +286,10 @@ def test_transferFlags():
     data = pd.DataFrame({"a": [1, 2], "b": [1, 2], "c": [1, 2]})
     qc = saqc.SaQC(data)
     qc = qc.flagRange("a", max=1.5)
-    qc = qc.transferFlags(["a", "a"], ["b", "c"])
-    assert np.all(qc.flags["b"].values == np.array([UNFLAGGED, BAD]))
-    assert np.all(qc.flags["c"].values == np.array([UNFLAGGED, BAD]))
+    with pytest.deprecated_call():
+        qc = qc.transferFlags(["a", "a"], ["b", "c"])
+        assert np.all(qc.flags["b"].values == np.array([UNFLAGGED, BAD]))
+        assert np.all(qc.flags["c"].values == np.array([UNFLAGGED, BAD]))
 
 
 def test_flagJumps():