diff --git a/.github/stale.yml b/.github/stale.yml
index 69aadab0..8930ff27 100644
--- a/.github/stale.yml
+++ b/.github/stale.yml
@@ -1,4 +1,4 @@
-# Copyright (c) HashiCorp, Inc.
+# Copyright IBM Corp. 2013, 2025
 # SPDX-License-Identifier: MPL-2.0
 
 # Number of days of inactivity before an Issue becomes stale
diff --git a/.golangci-lint.yml b/.golangci-lint.yml
index 654d05e1..3da709a7 100644
--- a/.golangci-lint.yml
+++ b/.golangci-lint.yml
@@ -1,4 +1,4 @@
-# Copyright (c) HashiCorp, Inc.
+# Copyright IBM Corp. 2013, 2025
 # SPDX-License-Identifier: MPL-2.0
 
 run:
diff --git a/.travis.yml b/.travis.yml
index f214436c..03cbc31b 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,4 +1,4 @@
-# Copyright (c) HashiCorp, Inc.
+# Copyright IBM Corp. 2013, 2025
 # SPDX-License-Identifier: MPL-2.0
 
 language: go
diff --git a/LICENSE b/LICENSE
index c72625e4..e3ff754c 100644
--- a/LICENSE
+++ b/LICENSE
@@ -1,4 +1,4 @@
-Copyright (c) 2013 HashiCorp, Inc.
+Copyright IBM Corp. 2013, 2025
 
 Mozilla Public License, version 2.0
 
diff --git a/api.go b/api.go
index 6aea63eb..fc8f4620 100644
--- a/api.go
+++ b/api.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/bench/bench.go b/bench/bench.go
index 4438781e..f8929e6f 100644
--- a/bench/bench.go
+++ b/bench/bench.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raftbench
diff --git a/bench_test.go b/bench_test.go
index 1dd6f7e3..a26ea33d 100644
--- a/bench_test.go
+++ b/bench_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/commands.go b/commands.go
index 1ec76cb2..0d591f24 100644
--- a/commands.go
+++ b/commands.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/commitment.go b/commitment.go
index 7d100a63..ef61d057 100644
--- a/commitment.go
+++ b/commitment.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/commitment_test.go b/commitment_test.go
index 458ab302..4ebdc593 100644
--- a/commitment_test.go
+++ b/commitment_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/config.go b/config.go
index 0f586973..d7823c3d 100644
--- a/config.go
+++ b/config.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/configuration.go b/configuration.go
index 3e3ece34..344b3012 100644
--- a/configuration.go
+++ b/configuration.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/configuration_test.go b/configuration_test.go
index a7eab992..2015bc86 100644
--- a/configuration_test.go
+++ b/configuration_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/discard_snapshot.go b/discard_snapshot.go
index aa148fb7..c8d402c6 100644
--- a/discard_snapshot.go
+++ b/discard_snapshot.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/discard_snapshot_test.go b/discard_snapshot_test.go
index 7bf2d972..22386498 100644
--- a/discard_snapshot_test.go
+++ b/discard_snapshot_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/file_snapshot.go b/file_snapshot.go
index d5b1ed18..0f43f348 100644
--- a/file_snapshot.go
+++ b/file_snapshot.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/file_snapshot_test.go b/file_snapshot_test.go
index 0c8b007a..6451dcfa 100644
--- a/file_snapshot_test.go
+++ b/file_snapshot_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/fsm.go b/fsm.go
index 5487dde8..b115dfde 100644
--- a/fsm.go
+++ b/fsm.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/future.go b/future.go
index e5d56caf..1d2821b1 100644
--- a/future.go
+++ b/future.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/future_test.go b/future_test.go
index 5ed42877..4a1a9e9f 100644
--- a/future_test.go
+++ b/future_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/fuzzy/apply_src.go b/fuzzy/apply_src.go
index 95144d92..4851d71e 100644
--- a/fuzzy/apply_src.go
+++ b/fuzzy/apply_src.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/fuzzy/cluster.go b/fuzzy/cluster.go
index 7d0ec758..df4293e8 100644
--- a/fuzzy/cluster.go
+++ b/fuzzy/cluster.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/fuzzy/fsm.go b/fuzzy/fsm.go
index 56d2dbd5..588e2a26 100644
--- a/fuzzy/fsm.go
+++ b/fuzzy/fsm.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/fuzzy/fsm_batch.go b/fuzzy/fsm_batch.go
index 8dc5e0fc..05a7e9bd 100644
--- a/fuzzy/fsm_batch.go
+++ b/fuzzy/fsm_batch.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 //go:build batchtest
diff --git a/fuzzy/leadershiptransfer_test.go b/fuzzy/leadershiptransfer_test.go
index 1e3b2b15..781107f7 100644
--- a/fuzzy/leadershiptransfer_test.go
+++ b/fuzzy/leadershiptransfer_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/fuzzy/membership_test.go b/fuzzy/membership_test.go
index 9c12e20b..42e7f6c3 100644
--- a/fuzzy/membership_test.go
+++ b/fuzzy/membership_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/fuzzy/node.go b/fuzzy/node.go
index 0b382b7f..16750f91 100644
--- a/fuzzy/node.go
+++ b/fuzzy/node.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/fuzzy/partition_test.go b/fuzzy/partition_test.go
index 0b40c0ad..0b150e1f 100644
--- a/fuzzy/partition_test.go
+++ b/fuzzy/partition_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/fuzzy/resolve.go b/fuzzy/resolve.go
index 14eb38ef..6c9a62de 100644
--- a/fuzzy/resolve.go
+++ b/fuzzy/resolve.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/fuzzy/simple_test.go b/fuzzy/simple_test.go
index 1e3027cf..19e7a870 100644
--- a/fuzzy/simple_test.go
+++ b/fuzzy/simple_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/fuzzy/slowvoter_test.go b/fuzzy/slowvoter_test.go
index f5c62c22..69639940 100644
--- a/fuzzy/slowvoter_test.go
+++ b/fuzzy/slowvoter_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/fuzzy/transport.go b/fuzzy/transport.go
index d6030d9b..2bcfd8a6 100644
--- a/fuzzy/transport.go
+++ b/fuzzy/transport.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/fuzzy/verifier.go b/fuzzy/verifier.go
index f0d1cc6e..1e707264 100644
--- a/fuzzy/verifier.go
+++ b/fuzzy/verifier.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package fuzzy
diff --git a/inmem_snapshot.go b/inmem_snapshot.go
index d23bc209..7f4d3b17 100644
--- a/inmem_snapshot.go
+++ b/inmem_snapshot.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/inmem_snapshot_test.go b/inmem_snapshot_test.go
index ebf2e50a..1f78afcc 100644
--- a/inmem_snapshot_test.go
+++ b/inmem_snapshot_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/inmem_store.go b/inmem_store.go
index 730d03f2..65dd4d3b 100644
--- a/inmem_store.go
+++ b/inmem_store.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/inmem_transport.go b/inmem_transport.go
index 4937e982..07e87d20 100644
--- a/inmem_transport.go
+++ b/inmem_transport.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/inmem_transport_test.go b/inmem_transport_test.go
index fa4b889b..b349d8dc 100644
--- a/inmem_transport_test.go
+++ b/inmem_transport_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/integ_test.go b/integ_test.go
index 98f2afea..77ce67df 100644
--- a/integ_test.go
+++ b/integ_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/log.go b/log.go
index 4a6dc47b..05466bfe 100644
--- a/log.go
+++ b/log.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/log_cache.go b/log_cache.go
index b61f8176..e0254008 100644
--- a/log_cache.go
+++ b/log_cache.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/log_cache_test.go b/log_cache_test.go
index 37fa06ef..6f977945 100644
--- a/log_cache_test.go
+++ b/log_cache_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/log_test.go b/log_test.go
index 1724e86f..5d374e28 100644
--- a/log_test.go
+++ b/log_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/net_transport.go b/net_transport.go
index 5e9171fc..5431bd44 100644
--- a/net_transport.go
+++ b/net_transport.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/net_transport_test.go b/net_transport_test.go
index 66120912..b181f050 100644
--- a/net_transport_test.go
+++ b/net_transport_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/observer.go b/observer.go
index 400a381e..aed1127b 100644
--- a/observer.go
+++ b/observer.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/peersjson.go b/peersjson.go
index d81d5ec4..42085483 100644
--- a/peersjson.go
+++ b/peersjson.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/peersjson_test.go b/peersjson_test.go
index bc48d3ac..196db99f 100644
--- a/peersjson_test.go
+++ b/peersjson_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/progress.go b/progress.go
index 6b4df53f..606106f7 100644
--- a/progress.go
+++ b/progress.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/raft-compat/prevote_test.go b/raft-compat/prevote_test.go
index e8d41d8a..021db167 100644
--- a/raft-compat/prevote_test.go
+++ b/raft-compat/prevote_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft_compat
diff --git a/raft-compat/rolling_upgrade_test.go b/raft-compat/rolling_upgrade_test.go
index f28c3cd2..97972a4c 100644
--- a/raft-compat/rolling_upgrade_test.go
+++ b/raft-compat/rolling_upgrade_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft_compat
diff --git a/raft-compat/testcluster/cluster.go b/raft-compat/testcluster/cluster.go
index 348c79cc..c91aae09 100644
--- a/raft-compat/testcluster/cluster.go
+++ b/raft-compat/testcluster/cluster.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package testcluster
diff --git a/raft-compat/utils/test_utils.go b/raft-compat/utils/test_utils.go
index 39d88333..7427b9e0 100644
--- a/raft-compat/utils/test_utils.go
+++ b/raft-compat/utils/test_utils.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package utils
diff --git a/raft.go b/raft.go
index 60c811c0..f0b6ff6a 100644
--- a/raft.go
+++ b/raft.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/raft_test.go b/raft_test.go
index 543a1981..9cfbf6c2 100644
--- a/raft_test.go
+++ b/raft_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/replication.go b/replication.go
index 6ab9b687..d48a8c83 100644
--- a/replication.go
+++ b/replication.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/saturation.go b/saturation.go
index 94c98278..cea9294c 100644
--- a/saturation.go
+++ b/saturation.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/saturation_test.go b/saturation_test.go
index ec3731ad..06cd16f3 100644
--- a/saturation_test.go
+++ b/saturation_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/snapshot.go b/snapshot.go
index 70e04617..2cfe78fa 100644
--- a/snapshot.go
+++ b/snapshot.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/stable.go b/stable.go
index 3d5a5764..4e66c02d 100644
--- a/stable.go
+++ b/stable.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/state.go b/state.go
index edbccae7..5abac1e8 100644
--- a/state.go
+++ b/state.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/tag.sh b/tag.sh
index c6eb8a06..3a9f9170 100755
--- a/tag.sh
+++ b/tag.sh
@@ -1,5 +1,5 @@
 #!/usr/bin/env bash
-# Copyright (c) HashiCorp, Inc.
+# Copyright IBM Corp. 2013, 2025
 # SPDX-License-Identifier: MPL-2.0
 
 set -e
diff --git a/tcp_transport.go b/tcp_transport.go
index 14905747..87e19da7 100644
--- a/tcp_transport.go
+++ b/tcp_transport.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/tcp_transport_test.go b/tcp_transport_test.go
index 131dec27..15af44a4 100644
--- a/tcp_transport_test.go
+++ b/tcp_transport_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/testing.go b/testing.go
index 026812ff..66bad0bd 100644
--- a/testing.go
+++ b/testing.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/testing_batch.go b/testing_batch.go
index 75e23f69..8838f5dc 100644
--- a/testing_batch.go
+++ b/testing_batch.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 //go:build batchtest
diff --git a/transport.go b/transport.go
index c64fff6e..9a274a12 100644
--- a/transport.go
+++ b/transport.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/transport_test.go b/transport_test.go
index 32f11f3b..aa4e3fa7 100644
--- a/transport_test.go
+++ b/transport_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/util.go b/util.go
index 4b462611..1e4fe88f 100644
--- a/util.go
+++ b/util.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft
diff --git a/util_test.go b/util_test.go
index 3a21b95a..834d029a 100644
--- a/util_test.go
+++ b/util_test.go
@@ -1,4 +1,4 @@
-// Copyright (c) HashiCorp, Inc.
+// Copyright IBM Corp. 2013, 2025
 // SPDX-License-Identifier: MPL-2.0
 
 package raft