diff --git a/pyproject.toml b/pyproject.toml
index 7fcc60d89594..2dd592050468 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -46,7 +46,6 @@ classifiers = [
 ]
 packages = [
     { include = "flwr", from = "src/py" },
-    { include = "flwr_tool", from = "src/py" },
 ]
 exclude = [
     "src/py/**/*_test.py",
diff --git a/src/py/flwr/client/app_test.py b/src/py/flwr/client/app_test.py
index 56d6308a0fe2..74ade03f973a 100644
--- a/src/py/flwr/client/app_test.py
+++ b/src/py/flwr/client/app_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/client_app.py b/src/py/flwr/client/client_app.py
index 82539834eaad..2e810f6560f2 100644
--- a/src/py/flwr/client/client_app.py
+++ b/src/py/flwr/client/client_app.py
@@ -1,4 +1,4 @@
-# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/client_test.py b/src/py/flwr/client/client_test.py
index 373c676e5edc..343b6cf093b2 100644
--- a/src/py/flwr/client/client_test.py
+++ b/src/py/flwr/client/client_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/dpfedavg_numpy_client.py b/src/py/flwr/client/dpfedavg_numpy_client.py
index ab31a289d29b..c592d10936d5 100644
--- a/src/py/flwr/client/dpfedavg_numpy_client.py
+++ b/src/py/flwr/client/dpfedavg_numpy_client.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/grpc_rere_client/__init__.py b/src/py/flwr/client/grpc_rere_client/__init__.py
index 93903e725776..e7c9408c0047 100644
--- a/src/py/flwr/client/grpc_rere_client/__init__.py
+++ b/src/py/flwr/client/grpc_rere_client/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/grpc_rere_client/client_interceptor_test.py b/src/py/flwr/client/grpc_rere_client/client_interceptor_test.py
index cc35ffef46db..9607dac5679e 100644
--- a/src/py/flwr/client/grpc_rere_client/client_interceptor_test.py
+++ b/src/py/flwr/client/grpc_rere_client/client_interceptor_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/grpc_rere_client/connection.py b/src/py/flwr/client/grpc_rere_client/connection.py
index b1c268d51d55..34dc0e417383 100644
--- a/src/py/flwr/client/grpc_rere_client/connection.py
+++ b/src/py/flwr/client/grpc_rere_client/connection.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/message_handler/__init__.py b/src/py/flwr/client/message_handler/__init__.py
index 653563963de5..a345b4af3ef2 100644
--- a/src/py/flwr/client/message_handler/__init__.py
+++ b/src/py/flwr/client/message_handler/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/message_handler/message_handler.py b/src/py/flwr/client/message_handler/message_handler.py
index e5acbe0cc9d0..68326852970f 100644
--- a/src/py/flwr/client/message_handler/message_handler.py
+++ b/src/py/flwr/client/message_handler/message_handler.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/message_handler/message_handler_test.py b/src/py/flwr/client/message_handler/message_handler_test.py
index 8a2db1804e4a..40907942513d 100644
--- a/src/py/flwr/client/message_handler/message_handler_test.py
+++ b/src/py/flwr/client/message_handler/message_handler_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/mod/__init__.py b/src/py/flwr/client/mod/__init__.py
index 0b4cf6488421..35d1fa81805c 100644
--- a/src/py/flwr/client/mod/__init__.py
+++ b/src/py/flwr/client/mod/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/mod/secure_aggregation/__init__.py b/src/py/flwr/client/mod/secure_aggregation/__init__.py
index 8892d8c03935..a64bc89e62c9 100644
--- a/src/py/flwr/client/mod/secure_aggregation/__init__.py
+++ b/src/py/flwr/client/mod/secure_aggregation/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/mod/utils.py b/src/py/flwr/client/mod/utils.py
index 4c3c32944f01..c8fb21379783 100644
--- a/src/py/flwr/client/mod/utils.py
+++ b/src/py/flwr/client/mod/utils.py
@@ -1,4 +1,4 @@
-# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/mod/utils_test.py b/src/py/flwr/client/mod/utils_test.py
index 4676a2c02c4b..035e41639b10 100644
--- a/src/py/flwr/client/mod/utils_test.py
+++ b/src/py/flwr/client/mod/utils_test.py
@@ -1,4 +1,4 @@
-# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/numpy_client_test.py b/src/py/flwr/client/numpy_client_test.py
index 526098798e45..06a0deafe2c9 100644
--- a/src/py/flwr/client/numpy_client_test.py
+++ b/src/py/flwr/client/numpy_client_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/rest_client/__init__.py b/src/py/flwr/client/rest_client/__init__.py
index c3485483ad35..a24d822a6d75 100644
--- a/src/py/flwr/client/rest_client/__init__.py
+++ b/src/py/flwr/client/rest_client/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/client/rest_client/connection.py b/src/py/flwr/client/rest_client/connection.py
index 5f5e153f9d8d..db5bd7eb6770 100644
--- a/src/py/flwr/client/rest_client/connection.py
+++ b/src/py/flwr/client/rest_client/connection.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/address.py b/src/py/flwr/common/address.py
index 71b6d684597f..1c6481b80a74 100644
--- a/src/py/flwr/common/address.py
+++ b/src/py/flwr/common/address.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/address_test.py b/src/py/flwr/common/address_test.py
index 420b89871d69..d5901ed640b1 100644
--- a/src/py/flwr/common/address_test.py
+++ b/src/py/flwr/common/address_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/constant.py b/src/py/flwr/common/constant.py
index ac35549d2051..f536e629c46c 100644
--- a/src/py/flwr/common/constant.py
+++ b/src/py/flwr/common/constant.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/date.py b/src/py/flwr/common/date.py
index f47ad5470106..7f30f5e0591a 100644
--- a/src/py/flwr/common/date.py
+++ b/src/py/flwr/common/date.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/dp.py b/src/py/flwr/common/dp.py
index 83a72b8ce749..527805c8ef42 100644
--- a/src/py/flwr/common/dp.py
+++ b/src/py/flwr/common/dp.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/grpc.py b/src/py/flwr/common/grpc.py
index ead0329ca79c..ec8fe823a7eb 100644
--- a/src/py/flwr/common/grpc.py
+++ b/src/py/flwr/common/grpc.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/message_test.py b/src/py/flwr/common/message_test.py
index 19f8aeb1eb63..daee57896903 100644
--- a/src/py/flwr/common/message_test.py
+++ b/src/py/flwr/common/message_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/secure_aggregation/__init__.py b/src/py/flwr/common/secure_aggregation/__init__.py
index b4e0acc0c148..77e1ea3842d7 100644
--- a/src/py/flwr/common/secure_aggregation/__init__.py
+++ b/src/py/flwr/common/secure_aggregation/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/secure_aggregation/crypto/__init__.py b/src/py/flwr/common/secure_aggregation/crypto/__init__.py
index 2cb34493f7d0..3788dbc0ca15 100644
--- a/src/py/flwr/common/secure_aggregation/crypto/__init__.py
+++ b/src/py/flwr/common/secure_aggregation/crypto/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/secure_aggregation/crypto/shamir.py b/src/py/flwr/common/secure_aggregation/crypto/shamir.py
index e56e21b89371..688bfa2153ea 100644
--- a/src/py/flwr/common/secure_aggregation/crypto/shamir.py
+++ b/src/py/flwr/common/secure_aggregation/crypto/shamir.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/secure_aggregation/crypto/symmetric_encryption.py b/src/py/flwr/common/secure_aggregation/crypto/symmetric_encryption.py
index 1d004a398ea8..59ca84d604b8 100644
--- a/src/py/flwr/common/secure_aggregation/crypto/symmetric_encryption.py
+++ b/src/py/flwr/common/secure_aggregation/crypto/symmetric_encryption.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/secure_aggregation/ndarrays_arithmetic.py b/src/py/flwr/common/secure_aggregation/ndarrays_arithmetic.py
index e926a9531bea..207c15b61518 100644
--- a/src/py/flwr/common/secure_aggregation/ndarrays_arithmetic.py
+++ b/src/py/flwr/common/secure_aggregation/ndarrays_arithmetic.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/secure_aggregation/quantization.py b/src/py/flwr/common/secure_aggregation/quantization.py
index 56c25e2bd59c..7946276b6a4f 100644
--- a/src/py/flwr/common/secure_aggregation/quantization.py
+++ b/src/py/flwr/common/secure_aggregation/quantization.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/secure_aggregation/secaggplus_constants.py b/src/py/flwr/common/secure_aggregation/secaggplus_constants.py
index 8a15908c13c5..545507eb44ed 100644
--- a/src/py/flwr/common/secure_aggregation/secaggplus_constants.py
+++ b/src/py/flwr/common/secure_aggregation/secaggplus_constants.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/secure_aggregation/secaggplus_utils.py b/src/py/flwr/common/secure_aggregation/secaggplus_utils.py
index c373573477b9..cf6ac3bfb003 100644
--- a/src/py/flwr/common/secure_aggregation/secaggplus_utils.py
+++ b/src/py/flwr/common/secure_aggregation/secaggplus_utils.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/serde_test.py b/src/py/flwr/common/serde_test.py
index f9969426fc36..afb11b6956f2 100644
--- a/src/py/flwr/common/serde_test.py
+++ b/src/py/flwr/common/serde_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/common/version.py b/src/py/flwr/common/version.py
index 6808c66606b1..ac13f70d8a88 100644
--- a/src/py/flwr/common/version.py
+++ b/src/py/flwr/common/version.py
@@ -1,3 +1,17 @@
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ==============================================================================
 """Flower package version helper."""
 
 import importlib.metadata as importlib_metadata
diff --git a/src/py/flwr/server/client_proxy_test.py b/src/py/flwr/server/client_proxy_test.py
index 685698558e3a..6ca37052a87d 100644
--- a/src/py/flwr/server/client_proxy_test.py
+++ b/src/py/flwr/server/client_proxy_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/compat/app.py b/src/py/flwr/server/compat/app.py
index 4bb23b846ab7..e978359fa828 100644
--- a/src/py/flwr/server/compat/app.py
+++ b/src/py/flwr/server/compat/app.py
@@ -1,4 +1,4 @@
-# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/compat/driver_client_proxy.py b/src/py/flwr/server/compat/driver_client_proxy.py
index 150803786f98..7190786784ec 100644
--- a/src/py/flwr/server/compat/driver_client_proxy.py
+++ b/src/py/flwr/server/compat/driver_client_proxy.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/compat/driver_client_proxy_test.py b/src/py/flwr/server/compat/driver_client_proxy_test.py
index d9e3d3bc0824..31b917fa869b 100644
--- a/src/py/flwr/server/compat/driver_client_proxy_test.py
+++ b/src/py/flwr/server/compat/driver_client_proxy_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/driver/grpc_driver.py b/src/py/flwr/server/driver/grpc_driver.py
index d339f1b232f9..3c8a1469ba97 100644
--- a/src/py/flwr/server/driver/grpc_driver.py
+++ b/src/py/flwr/server/driver/grpc_driver.py
@@ -1,4 +1,4 @@
-# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/driver/grpc_driver_test.py b/src/py/flwr/server/driver/grpc_driver_test.py
index fbead0e3043d..9cc23e281ce2 100644
--- a/src/py/flwr/server/driver/grpc_driver_test.py
+++ b/src/py/flwr/server/driver/grpc_driver_test.py
@@ -1,4 +1,4 @@
-# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/driver/inmemory_driver_test.py b/src/py/flwr/server/driver/inmemory_driver_test.py
index 95c2a0b277af..fddd85fd4dd0 100644
--- a/src/py/flwr/server/driver/inmemory_driver_test.py
+++ b/src/py/flwr/server/driver/inmemory_driver_test.py
@@ -1,4 +1,4 @@
-# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/history_test.py b/src/py/flwr/server/history_test.py
index adb9d697e409..b53357149623 100644
--- a/src/py/flwr/server/history_test.py
+++ b/src/py/flwr/server/history_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/server_app_test.py b/src/py/flwr/server/server_app_test.py
index 38c0d6240d90..0751a0cb2bc5 100644
--- a/src/py/flwr/server/server_app_test.py
+++ b/src/py/flwr/server/server_app_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/bulyan.py b/src/py/flwr/server/strategy/bulyan.py
index 1e4f97530ab7..a81406c255ad 100644
--- a/src/py/flwr/server/strategy/bulyan.py
+++ b/src/py/flwr/server/strategy/bulyan.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/bulyan_test.py b/src/py/flwr/server/strategy/bulyan_test.py
index 299ed49066fb..93a9ebda3783 100644
--- a/src/py/flwr/server/strategy/bulyan_test.py
+++ b/src/py/flwr/server/strategy/bulyan_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/dpfedavg_adaptive.py b/src/py/flwr/server/strategy/dpfedavg_adaptive.py
index a908679ed668..423ddddeb379 100644
--- a/src/py/flwr/server/strategy/dpfedavg_adaptive.py
+++ b/src/py/flwr/server/strategy/dpfedavg_adaptive.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/dpfedavg_fixed.py b/src/py/flwr/server/strategy/dpfedavg_fixed.py
index c54379fc7087..d122f0688922 100644
--- a/src/py/flwr/server/strategy/dpfedavg_fixed.py
+++ b/src/py/flwr/server/strategy/dpfedavg_fixed.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedadagrad.py b/src/py/flwr/server/strategy/fedadagrad.py
index 4a8f52d98e18..f13c5358da25 100644
--- a/src/py/flwr/server/strategy/fedadagrad.py
+++ b/src/py/flwr/server/strategy/fedadagrad.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedadagrad_test.py b/src/py/flwr/server/strategy/fedadagrad_test.py
index 0c966442ecaf..b43a4c75d123 100644
--- a/src/py/flwr/server/strategy/fedadagrad_test.py
+++ b/src/py/flwr/server/strategy/fedadagrad_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedadam.py b/src/py/flwr/server/strategy/fedadam.py
index 8a47cf0dd8ac..dc90e90c7568 100644
--- a/src/py/flwr/server/strategy/fedadam.py
+++ b/src/py/flwr/server/strategy/fedadam.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedavg_android.py b/src/py/flwr/server/strategy/fedavg_android.py
index 6678b7ced114..2f49cf8784c9 100644
--- a/src/py/flwr/server/strategy/fedavg_android.py
+++ b/src/py/flwr/server/strategy/fedavg_android.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedavgm.py b/src/py/flwr/server/strategy/fedavgm.py
index fb9261abe89d..ab3d37249db6 100644
--- a/src/py/flwr/server/strategy/fedavgm.py
+++ b/src/py/flwr/server/strategy/fedavgm.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedavgm_test.py b/src/py/flwr/server/strategy/fedavgm_test.py
index a0e942171627..39da5f4b82c4 100644
--- a/src/py/flwr/server/strategy/fedavgm_test.py
+++ b/src/py/flwr/server/strategy/fedavgm_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedmedian.py b/src/py/flwr/server/strategy/fedmedian.py
index 17e979d92beb..e7cba5324fa8 100644
--- a/src/py/flwr/server/strategy/fedmedian.py
+++ b/src/py/flwr/server/strategy/fedmedian.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedmedian_test.py b/src/py/flwr/server/strategy/fedmedian_test.py
index 57cf08d8c01d..3960ad70b145 100644
--- a/src/py/flwr/server/strategy/fedmedian_test.py
+++ b/src/py/flwr/server/strategy/fedmedian_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedopt.py b/src/py/flwr/server/strategy/fedopt.py
index be5f260d96fa..c581d4797123 100644
--- a/src/py/flwr/server/strategy/fedopt.py
+++ b/src/py/flwr/server/strategy/fedopt.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedprox.py b/src/py/flwr/server/strategy/fedprox.py
index d20f578b193d..f15271e06060 100644
--- a/src/py/flwr/server/strategy/fedprox.py
+++ b/src/py/flwr/server/strategy/fedprox.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedxgb_bagging.py b/src/py/flwr/server/strategy/fedxgb_bagging.py
index a8e8adddafbb..a74ee81976a6 100644
--- a/src/py/flwr/server/strategy/fedxgb_bagging.py
+++ b/src/py/flwr/server/strategy/fedxgb_bagging.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedxgb_cyclic.py b/src/py/flwr/server/strategy/fedxgb_cyclic.py
index 2605daab29f4..75025a89728b 100644
--- a/src/py/flwr/server/strategy/fedxgb_cyclic.py
+++ b/src/py/flwr/server/strategy/fedxgb_cyclic.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedxgb_nn_avg.py b/src/py/flwr/server/strategy/fedxgb_nn_avg.py
index 8dedc925f350..4562663287ae 100644
--- a/src/py/flwr/server/strategy/fedxgb_nn_avg.py
+++ b/src/py/flwr/server/strategy/fedxgb_nn_avg.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/fedyogi.py b/src/py/flwr/server/strategy/fedyogi.py
index 7c77aab7ae73..c7b2ebb51667 100644
--- a/src/py/flwr/server/strategy/fedyogi.py
+++ b/src/py/flwr/server/strategy/fedyogi.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/krum.py b/src/py/flwr/server/strategy/krum.py
index 16eb5212940e..074d018c35a3 100644
--- a/src/py/flwr/server/strategy/krum.py
+++ b/src/py/flwr/server/strategy/krum.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/krum_test.py b/src/py/flwr/server/strategy/krum_test.py
index 653dc9a8475d..b34982325b39 100644
--- a/src/py/flwr/server/strategy/krum_test.py
+++ b/src/py/flwr/server/strategy/krum_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/multikrum_test.py b/src/py/flwr/server/strategy/multikrum_test.py
index f874dc2f9800..7a1a4c3ecf38 100644
--- a/src/py/flwr/server/strategy/multikrum_test.py
+++ b/src/py/flwr/server/strategy/multikrum_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/strategy/qfedavg.py b/src/py/flwr/server/strategy/qfedavg.py
index 758e8e608e9f..26a397d4cf8c 100644
--- a/src/py/flwr/server/strategy/qfedavg.py
+++ b/src/py/flwr/server/strategy/qfedavg.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/driver/__init__.py b/src/py/flwr/server/superlink/driver/__init__.py
index 2bfe63e6065f..58fbc479478f 100644
--- a/src/py/flwr/server/superlink/driver/__init__.py
+++ b/src/py/flwr/server/superlink/driver/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/driver/driver_grpc.py b/src/py/flwr/server/superlink/driver/driver_grpc.py
index f74000bc59c4..782935481945 100644
--- a/src/py/flwr/server/superlink/driver/driver_grpc.py
+++ b/src/py/flwr/server/superlink/driver/driver_grpc.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/driver/driver_servicer.py b/src/py/flwr/server/superlink/driver/driver_servicer.py
index e808616af778..42b394d1d537 100644
--- a/src/py/flwr/server/superlink/driver/driver_servicer.py
+++ b/src/py/flwr/server/superlink/driver/driver_servicer.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/driver/driver_servicer_test.py b/src/py/flwr/server/superlink/driver/driver_servicer_test.py
index 99f7cc007a89..394d6be7ee6a 100644
--- a/src/py/flwr/server/superlink/driver/driver_servicer_test.py
+++ b/src/py/flwr/server/superlink/driver/driver_servicer_test.py
@@ -1,4 +1,4 @@
-# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/__init__.py b/src/py/flwr/server/superlink/fleet/__init__.py
index d3c3ef90163d..c236ed06ae1c 100644
--- a/src/py/flwr/server/superlink/fleet/__init__.py
+++ b/src/py/flwr/server/superlink/fleet/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/grpc_bidi/__init__.py b/src/py/flwr/server/superlink/fleet/grpc_bidi/__init__.py
index bae8bc431edd..6b2c2bf3ffec 100644
--- a/src/py/flwr/server/superlink/fleet/grpc_bidi/__init__.py
+++ b/src/py/flwr/server/superlink/fleet/grpc_bidi/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/grpc_bidi/flower_service_servicer.py b/src/py/flwr/server/superlink/fleet/grpc_bidi/flower_service_servicer.py
index 6f94ea844e38..79f1a8f9902b 100644
--- a/src/py/flwr/server/superlink/fleet/grpc_bidi/flower_service_servicer.py
+++ b/src/py/flwr/server/superlink/fleet/grpc_bidi/flower_service_servicer.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/grpc_bidi/flower_service_servicer_test.py b/src/py/flwr/server/superlink/fleet/grpc_bidi/flower_service_servicer_test.py
index bd93554a6a32..03e8555f8ecf 100644
--- a/src/py/flwr/server/superlink/fleet/grpc_bidi/flower_service_servicer_test.py
+++ b/src/py/flwr/server/superlink/fleet/grpc_bidi/flower_service_servicer_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_bridge.py b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_bridge.py
index d5b4a915c609..5fe0396696ab 100644
--- a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_bridge.py
+++ b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_bridge.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_bridge_test.py b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_bridge_test.py
index f7c236acd7a1..f9b6b97030f0 100644
--- a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_bridge_test.py
+++ b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_bridge_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_client_proxy.py b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_client_proxy.py
index ac62ad014950..03497743becd 100644
--- a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_client_proxy.py
+++ b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_client_proxy.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_client_proxy_test.py b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_client_proxy_test.py
index e7077dfd39ae..6d3eb4f67e30 100644
--- a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_client_proxy_test.py
+++ b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_client_proxy_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_server.py b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_server.py
index 6aeaa7ef413f..a7842cffd952 100644
--- a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_server.py
+++ b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_server.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_server_test.py b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_server_test.py
index 8afa37515950..7ff730b17afa 100644
--- a/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_server_test.py
+++ b/src/py/flwr/server/superlink/fleet/grpc_bidi/grpc_server_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/grpc_rere/__init__.py b/src/py/flwr/server/superlink/fleet/grpc_rere/__init__.py
index 61ab71d91400..03c8ded2423a 100644
--- a/src/py/flwr/server/superlink/fleet/grpc_rere/__init__.py
+++ b/src/py/flwr/server/superlink/fleet/grpc_rere/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/grpc_rere/fleet_servicer.py b/src/py/flwr/server/superlink/fleet/grpc_rere/fleet_servicer.py
index 13e024eb31e4..89342a46eb48 100644
--- a/src/py/flwr/server/superlink/fleet/grpc_rere/fleet_servicer.py
+++ b/src/py/flwr/server/superlink/fleet/grpc_rere/fleet_servicer.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/message_handler/__init__.py b/src/py/flwr/server/superlink/fleet/message_handler/__init__.py
index 18b0f11fa6c5..3db0ef5d1611 100644
--- a/src/py/flwr/server/superlink/fleet/message_handler/__init__.py
+++ b/src/py/flwr/server/superlink/fleet/message_handler/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/message_handler/message_handler.py b/src/py/flwr/server/superlink/fleet/message_handler/message_handler.py
index dceb18cab453..b70cd54035fe 100644
--- a/src/py/flwr/server/superlink/fleet/message_handler/message_handler.py
+++ b/src/py/flwr/server/superlink/fleet/message_handler/message_handler.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/message_handler/message_handler_test.py b/src/py/flwr/server/superlink/fleet/message_handler/message_handler_test.py
index c135f6fb7b61..ec521b328eb8 100644
--- a/src/py/flwr/server/superlink/fleet/message_handler/message_handler_test.py
+++ b/src/py/flwr/server/superlink/fleet/message_handler/message_handler_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/rest_rere/__init__.py b/src/py/flwr/server/superlink/fleet/rest_rere/__init__.py
index a926f9ca0bfc..f24db2a2e12f 100644
--- a/src/py/flwr/server/superlink/fleet/rest_rere/__init__.py
+++ b/src/py/flwr/server/superlink/fleet/rest_rere/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/fleet/rest_rere/rest_api.py b/src/py/flwr/server/superlink/fleet/rest_rere/rest_api.py
index c7ff496d39bf..1ed67e5eb0aa 100644
--- a/src/py/flwr/server/superlink/fleet/rest_rere/rest_api.py
+++ b/src/py/flwr/server/superlink/fleet/rest_rere/rest_api.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/state/__init__.py b/src/py/flwr/server/superlink/state/__init__.py
index 7f260d733bbe..9d3bd220403b 100644
--- a/src/py/flwr/server/superlink/state/__init__.py
+++ b/src/py/flwr/server/superlink/state/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/state/in_memory_state.py b/src/py/flwr/server/superlink/state/in_memory_state.py
index e03260355db9..da9c754c3115 100644
--- a/src/py/flwr/server/superlink/state/in_memory_state.py
+++ b/src/py/flwr/server/superlink/state/in_memory_state.py
@@ -1,4 +1,4 @@
-# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/state/sqlite_state.py b/src/py/flwr/server/superlink/state/sqlite_state.py
index b9672757b0e6..4df9470ded62 100644
--- a/src/py/flwr/server/superlink/state/sqlite_state.py
+++ b/src/py/flwr/server/superlink/state/sqlite_state.py
@@ -1,4 +1,4 @@
-# Copyright 2023 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/state/sqlite_state_test.py b/src/py/flwr/server/superlink/state/sqlite_state_test.py
index 20927df1cf12..10e12da96bd5 100644
--- a/src/py/flwr/server/superlink/state/sqlite_state_test.py
+++ b/src/py/flwr/server/superlink/state/sqlite_state_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/state/state.py b/src/py/flwr/server/superlink/state/state.py
index d1fc9465c9f2..65e2c63cab69 100644
--- a/src/py/flwr/server/superlink/state/state.py
+++ b/src/py/flwr/server/superlink/state/state.py
@@ -1,4 +1,4 @@
-# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/state/state_factory.py b/src/py/flwr/server/superlink/state/state_factory.py
index 62a00d910828..9b9232c27ee6 100644
--- a/src/py/flwr/server/superlink/state/state_factory.py
+++ b/src/py/flwr/server/superlink/state/state_factory.py
@@ -1,4 +1,4 @@
-# Copyright 2022 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/superlink/state/state_test.py b/src/py/flwr/server/superlink/state/state_test.py
index 81307d938400..373202d5cde6 100644
--- a/src/py/flwr/server/superlink/state/state_test.py
+++ b/src/py/flwr/server/superlink/state/state_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2024 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/utils/__init__.py b/src/py/flwr/server/utils/__init__.py
index c370716adaac..8994374c4d08 100644
--- a/src/py/flwr/server/utils/__init__.py
+++ b/src/py/flwr/server/utils/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/utils/tensorboard.py b/src/py/flwr/server/utils/tensorboard.py
index 3e8d1e62411e..5d38fc159657 100644
--- a/src/py/flwr/server/utils/tensorboard.py
+++ b/src/py/flwr/server/utils/tensorboard.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/server/utils/tensorboard_test.py b/src/py/flwr/server/utils/tensorboard_test.py
index 1827a42cf6e6..689755c6da16 100644
--- a/src/py/flwr/server/utils/tensorboard_test.py
+++ b/src/py/flwr/server/utils/tensorboard_test.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/simulation/__init__.py b/src/py/flwr/simulation/__init__.py
index 3d648b14edba..5db90a352e3f 100644
--- a/src/py/flwr/simulation/__init__.py
+++ b/src/py/flwr/simulation/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/simulation/app.py b/src/py/flwr/simulation/app.py
index 4b4b7249ccd3..856d6fc45e22 100644
--- a/src/py/flwr/simulation/app.py
+++ b/src/py/flwr/simulation/app.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/simulation/ray_transport/__init__.py b/src/py/flwr/simulation/ray_transport/__init__.py
index 0e82b75bb4b3..ed4971935a15 100644
--- a/src/py/flwr/simulation/ray_transport/__init__.py
+++ b/src/py/flwr/simulation/ray_transport/__init__.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
diff --git a/src/py/flwr/simulation/ray_transport/ray_client_proxy.py b/src/py/flwr/simulation/ray_transport/ray_client_proxy.py
index 5e344eb087ee..d3d103bb377a 100644
--- a/src/py/flwr/simulation/ray_transport/ray_client_proxy.py
+++ b/src/py/flwr/simulation/ray_transport/ray_client_proxy.py
@@ -1,4 +1,4 @@
-# Copyright 2020 Flower Labs GmbH. All Rights Reserved.
+# Copyright 2021 Flower Labs GmbH. All Rights Reserved.
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.