diff --git a/cardano-api/ChangeLog.md b/cardano-api/ChangeLog.md
index d16c78f0e35..487e48cbb23 100644
--- a/cardano-api/ChangeLog.md
+++ b/cardano-api/ChangeLog.md
@@ -1,5 +1,11 @@
 # Changelog for cardano-api
 
+## 1.23.0 -- November 2020
+
+- Preliminary support for the Allegra script language extensions (#2069)
+- Preliminary support for the Mary multi-asset extensions (#2083, #2085, #2093)
+- Internal refactoring of the API code (#2040, #2055, #2094)
+
 ## 1.22.1 -- October 2020
 
 None
diff --git a/cardano-api/cardano-api.cabal b/cardano-api/cardano-api.cabal
index c1d54ace0da..86452fd2cd2 100644
--- a/cardano-api/cardano-api.cabal
+++ b/cardano-api/cardano-api.cabal
@@ -1,7 +1,7 @@
 cabal-version: 2.4
 
 name:                   cardano-api
-version:                1.22.1
+version:                1.23.0
 description:            The cardano api
 author:                 IOHK
 maintainer:             operations@iohk.io
diff --git a/cardano-cli/ChangeLog.md b/cardano-cli/ChangeLog.md
index c3b0b58b0c9..73b135bcfea 100644
--- a/cardano-cli/ChangeLog.md
+++ b/cardano-cli/ChangeLog.md
@@ -1,5 +1,11 @@
 # Changelog for cardano-cli
 
+## 1.23.0 -- November 2020
+
+- Create VRF keys with the correct file permissions (#1948)
+- New command to query the Shelley protocol (not just ledger) state (#2057)
+- Skeletons of the new commands and flags for the multi-asset extensions (#2081)
+
 ## 1.22.1 -- October 2020
 
 None
diff --git a/cardano-cli/cardano-cli.cabal b/cardano-cli/cardano-cli.cabal
index 7746792efe0..17403716f2b 100644
--- a/cardano-cli/cardano-cli.cabal
+++ b/cardano-cli/cardano-cli.cabal
@@ -1,7 +1,7 @@
 cabal-version: 2.4
 
 name:                  cardano-cli
-version:               1.22.1
+version:               1.23.0
 description:           The Cardano command-line interface.
 author:                IOHK
 maintainer:            operations@iohk.io
diff --git a/cardano-node-chairman/cardano-node-chairman.cabal b/cardano-node-chairman/cardano-node-chairman.cabal
index ac339be83b2..55ca190a2a8 100644
--- a/cardano-node-chairman/cardano-node-chairman.cabal
+++ b/cardano-node-chairman/cardano-node-chairman.cabal
@@ -1,7 +1,7 @@
 cabal-version: 2.4
 
 name:                  cardano-node-chairman
-version:               1.22.1
+version:               1.23.0
 description:           The cardano full node
 author:                IOHK
 maintainer:            operations@iohk.io
diff --git a/cardano-node/ChangeLog.md b/cardano-node/ChangeLog.md
index 28d80f4e49b..b1caad05233 100644
--- a/cardano-node/ChangeLog.md
+++ b/cardano-node/ChangeLog.md
@@ -1,5 +1,49 @@
 # Changelog for cardano-node
 
+## 1.23.0 -- November 2020
+
+### node changes
+
+- Preliminary support for the upcoming Allegra and Mary eras (#2038, #2080)
+- Remove the HardForkNotBeforeEpoch setting from the config file (#2073)
+- Tracing changes for the benefit of the RTView monitoring tool (#2047, #2062)
+- Minor documentation improvements requested by the external audit (#2046)
+- Miscellaneous "chairman" integration test improvements (#2042, #2043, #2048,
+  #2061, #2078, #2087, #2086)
+- Improve handling of invalid command line input (#2088)
+
+### ledger changes
+
+- Fix a space leak in the stake pool performance tracking that caused writing
+  ledger state snapshots in consensus to take too long (#1967)
+- Improved ledger state serialisation performance. This involving a change to
+  the serialisation format which will require the ledger state to be rebuilt
+  upon node startup (#1968)
+- Further development for the Allegra era (#1951, #1965, #1984, #1989)
+- Further development for the Mary multi-asset era (#1961, #1959, #1971, #1977,
+  #1981, #1987, #1988, #1990)
+- Internal refactoring to support the new eras (#1954, 1978)
+- Extra test coverage (#1958, #1966)
+- Minor corrections to the formal spec arising from internal review (#1969, #1992)
+
+### consensus changes
+
+- Internal changes to improve the clarity of the chain selection algorithm and
+  to better match the description in the tech report (#2732, #2735, #2743)
+- Support for creating ledger state snapshots for testing purposes (#2733)
+- Support for the new Allegra and Mary ledger eras (#2668, #2670, #2677, #2679)
+- Extra test coverage for new eras (#2669, #2737, #2738, #2740)
+- Remove the SafeBeforeEpoch feature as it provided no benefit. In the node
+  config file this was called HardForkNotBeforeEpoch. (#2736, #2739)
+- Internal refactoring (#2720)
+
+### network changes
+- None.
+
+### crypto changes
+
+- Revert the use of libsodium in the KES implementation for now (#1986, #2752)
+
 ## 1.22.1 -- October 2020
 
 ### node changes
diff --git a/cardano-node/cardano-node.cabal b/cardano-node/cardano-node.cabal
index 5f78e2d2e25..413291c5f57 100644
--- a/cardano-node/cardano-node.cabal
+++ b/cardano-node/cardano-node.cabal
@@ -1,7 +1,7 @@
 cabal-version: 2.4
 
 name:                  cardano-node
-version:               1.22.1
+version:               1.23.0
 description:           The cardano full node
 author:                IOHK
 maintainer:            operations@iohk.io