diff --git a/CHANGELOG.md b/CHANGELOG.md
index 1ee30e886..f477bbb52 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,58 @@
+2023-06-20 v23.6.0
+==================
+
+Nimbus `v23.6.0` is a `medium-priority` upgrade, further improving the efficiency and the standards-compliance of Nimbus while laying out the foundations for the upcoming Deneb hard-fork.
+
+### Improvements
+
+* The `--history:prune` option is now enabled by default.
+
+* Nimbus can now process untimely attestations without triggering expensive state replays, resulting in increased resilience
+  https://github.com/status-im/nimbus-eth2/pull/4911
+
+* The Keymanager API can now be used to perform voluntary exits:
+  https://github.com/status-im/nimbus-eth2/pull/5020
+  https://ethereum.github.io/keymanager-APIs/?urls.primaryName=dev#/Voluntary%20Exit
+
+* The Nimbus validator client now leverages the more efficient support for SSZ responses of the Beacon API:
+  https://github.com/status-im/nimbus-eth2/pull/4999
+
+### Fixes
+
+* The support for interacting with the Beacon API from CORS-enabled clients has been restored:
+  https://github.com/status-im/nimbus-eth2/pull/5028
+
+* The Nimbus beacon node will no longer inappropriately report `el_offline=true` when fully synced:
+  https://github.com/status-im/nimbus-eth2/pull/4991
+
+* The Nimbus validator client will no longer occasionally fail to perform sync committee duties in the first slot of every epoch:
+  https://github.com/status-im/nimbus-eth2/pull/5083
+  https://github.com/status-im/nimbus-eth2/pull/5084
+
+* Nimbus will no longer refuse to import certain valid SPDIR files (slashing protection interchange format):
+  https://github.com/status-im/nimbus-eth2/pull/4997
+
+* The Nimbus behavior differed in minor ways from the Ethereum's fork-choice and honest validator specifications:
+  https://github.com/status-im/nimbus-eth2/pull/4992
+  https://github.com/status-im/nimbus-eth2/pull/5002
+
+* The Nimbus beacon node was leaking a small amount of memory during a build-up of peer-to-peer block syncing requests:
+  https://github.com/status-im/nimbus-eth2/pull/4697
+
+* The Nimbus validator client is now compatible with Lighthouse beacon nodes as it no longer exceeds the maximum allowed number of validator indices per request to the `/eth/v1/beacon/states/{state_id}/validators` endpoint:
+  https://github.com/status-im/nimbus-eth2/pull/5082
+
+  We are deeply grateful to @jshufro for contributing important fixes in two consecutive Nimbus releases!
+
+### Removed functionality
+
+* The implementation of the phase0-specific Beacon API endpoint `/eth/v1/debug/beacon/heads` has been removed:
+  https://github.com/status-im/nimbus-eth2/pull/5058
+
+* The Web3Signer support for performing the phase0-specific V1 block signing requests has been removed:
+  https://github.com/status-im/nimbus-eth2/pull/5014
+
+
 2023-05-18 v23.5.1
 ==================
 
diff --git a/beacon_chain/version.nim b/beacon_chain/version.nim
index 8430af444..3560d0561 100644
--- a/beacon_chain/version.nim
+++ b/beacon_chain/version.nim
@@ -17,8 +17,8 @@ const
     "Copyright (c) 2019-" & compileYear & " Status Research & Development GmbH"
 
   versionMajor* = 23
-  versionMinor* = 5
-  versionBuild* = 1
+  versionMinor* = 6
+  versionBuild* = 0
 
   versionBlob* = "stateofus" # Single word - ends up in the default graffiti