diff --git a/CHANGELOG.md b/CHANGELOG.md
index a2018f6edf..8e2fc5c172 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to the versioning scheme outlined in the [README.md](README.md).
 
-## [Unreleased]
+## [3.1.0.0.3]
 
 ### Added
 
@@ -13,11 +13,15 @@ and this project adheres to the versioning scheme outlined in the [README.md](RE
 - Added configuration option `block_proposal_max_age_secs` under `[connection_options]` to prevent processing stale block proposals
 
 ### Changed
-- The RPC endpoint `/v3/block_proposal` no longer will evaluate block proposals more than `block_proposal_max_age_secs` old
 
+- The RPC endpoint `/v3/block_proposal` no longer will evaluate block proposals more than `block_proposal_max_age_secs` old
 - When a transaction is dropped due to replace-by-fee, the `/drop_mempool_tx` event observer payload now includes `new_txid`, which is the transaction that replaced this dropped transaction. When a transaction is dropped for other reasons, `new_txid` is `null`. [#5381](https://github.com/stacks-network/stacks-core/pull/5381)
 - Nodes will assume that all PoX anchor blocks exist by default, and stall initial block download indefinitely to await their arrival (#5502)
 
+### Fixed
+
+- Signers no longer accept messages for blocks from different reward cycles (#5662)
+
 ## [3.1.0.0.2]
 
 ### Added
diff --git a/stacks-signer/CHANGELOG.md b/stacks-signer/CHANGELOG.md
index 04d2d76a7a..e634d73172 100644
--- a/stacks-signer/CHANGELOG.md
+++ b/stacks-signer/CHANGELOG.md
@@ -9,6 +9,12 @@ and this project adheres to the versioning scheme outlined in the [README.md](RE
 
 ## Added
 
+## Changed
+
+## [3.1.0.0.3.0]
+
+## Added
+
 - Introduced the `block_proposal_max_age_secs` configuration option for signers, enabling them to automatically ignore block proposals that exceed the specified age in seconds.
 
 ## Changed
@@ -23,6 +29,14 @@ and this project adheres to the versioning scheme outlined in the [README.md](RE
 
 - Prevent old reward cycle signers from processing block validation response messages that do not apply to blocks from their cycle.
 
+# [3.1.0.0.2.1]
+
+## Added
+
+## Changed
+
+- Prevent old reward cycle signers from processing block validation response messages that do not apply to blocks from their cycle.
+
 ## [3.1.0.0.2.0]
 
 ## Added