diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3e3a621..f4a926f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -7,6 +7,23 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ---
 
+## [1.2.3] - 2026-10-27
+
+### Added
+- Php: assert the security floor via config.assertions, not a module-level assert
+- Php: drop duplicate filter-test backport that breaks the php-filter build
+- Php: fix the filter tests that break the 8.5.12 build
+- Php: pin the shared interpreter to 8.5.12 for CVE-2026-109618/-109619
+
+### Changed
+- Updated nixpkgs
+- Updated to Bisq 1.10.10
+
+### Documentation
+- Update changelog and versions with nixpkgs and matrix-synapse 1.163.0
+[1.2.3]: https://git.sovransystems.com/Sovran_Systems/Sovran_SystemsOS/releases/tag/v1.2.3
+
+
 ## [1.2.2] - 2026-10-21
 
 ### Changed
diff --git a/README.md b/README.md
index 24951e9..201bda4 100644
--- a/README.md
+++ b/README.md
@@ -21,9 +21,9 @@ Lightning infrastructure, private cloud, and communications platform when you
 are ready.
 
 [Visit the Website](https://sovransystems.com) ·
-[Download the ISO](https://downloads.sovransystems.com/Sovran_SystemsOS-1.2.2.iso) ·
+[Download the ISO](https://downloads.sovransystems.com/Sovran_SystemsOS-1.2.3.iso) ·
 [Try it safely in a VM](#try-it-first-in-a-virtual-machine) ·
-[Verify the Download](https://downloads.sovransystems.com/Sovran_SystemsOS-1.2.2.iso.sha256) ·
+[Verify the Download](https://downloads.sovransystems.com/Sovran_SystemsOS-1.2.3.iso.sha256) ·
 [Build from Source](#build-from-source)
 
 <img src="assets/desktop-screenshot.webp" alt="Sovran_SystemsOS private Bitcoin desktop" width="800" />
@@ -401,8 +401,8 @@ with an imaging application such as [Balena Etcher](https://etcher.balena.io).
 
 ### 1. Download the ISO and checksum
 
-- [Download Sovran_SystemsOS-1.2.2.iso](https://downloads.sovransystems.com/Sovran_SystemsOS-1.2.2.iso)
-- [Download Sovran_SystemsOS-1.2.2.iso.sha256](https://downloads.sovransystems.com/Sovran_SystemsOS-1.2.2.iso.sha256)
+- [Download Sovran_SystemsOS-1.2.3.iso](https://downloads.sovransystems.com/Sovran_SystemsOS-1.2.3.iso)
+- [Download Sovran_SystemsOS-1.2.3.iso.sha256](https://downloads.sovransystems.com/Sovran_SystemsOS-1.2.3.iso.sha256)
 
 The download may take some time. Do not rename or modify the ISO before
 verifying it, and keep both files in the same folder.
@@ -419,13 +419,13 @@ ISO must match the published one exactly.
 Open a terminal in the download folder and run:
 
 ```bash
-sha256sum --check Sovran_SystemsOS-1.2.2.iso.sha256
+sha256sum --check Sovran_SystemsOS-1.2.3.iso.sha256
 ```
 
 A successful comparison reports:
 
 ```text
-Sovran_SystemsOS-1.2.2.iso: OK
+Sovran_SystemsOS-1.2.3.iso: OK
 ```
 
 </details>
@@ -436,11 +436,11 @@ Sovran_SystemsOS-1.2.2.iso: OK
 Open Terminal in the download folder and run:
 
 ```bash
-shasum -a 256 Sovran_SystemsOS-1.2.2.iso
+shasum -a 256 Sovran_SystemsOS-1.2.3.iso
 ```
 
 Compare the value shown in Terminal with the value inside
-`Sovran_SystemsOS-1.2.2.iso.sha256`.
+`Sovran_SystemsOS-1.2.3.iso.sha256`.
 
 </details>
 
@@ -450,7 +450,7 @@ Compare the value shown in Terminal with the value inside
 Open PowerShell in the download folder and run:
 
 ```powershell
-Get-FileHash .\Sovran_SystemsOS-1.2.2.iso -Algorithm SHA256
+Get-FileHash .\Sovran_SystemsOS-1.2.3.iso -Algorithm SHA256
 ```
 
 Compare the value under `Hash` with the published checksum.
@@ -465,7 +465,7 @@ match exactly.
 
 1. Download and install [Balena Etcher](https://etcher.balena.io), then
    connect the USB drive.
-2. Choose **Flash from file** and select `Sovran_SystemsOS-1.2.2.iso`.
+2. Choose **Flash from file** and select `Sovran_SystemsOS-1.2.3.iso`.
 3. Choose **Select target**, select the USB drive, and review your selection
    carefully.
 4. Choose **Flash** and wait for the writing and verification process to
@@ -883,7 +883,7 @@ primary location for collaboration. Please read our
 ## Privacy. Sovereignty. Bitcoin.
 
 [Visit Sovran Systems](https://sovransystems.com) ·
-[Download Sovran_SystemsOS](https://downloads.sovransystems.com/Sovran_SystemsOS-1.2.2.iso) ·
+[Download Sovran_SystemsOS](https://downloads.sovransystems.com/Sovran_SystemsOS-1.2.3.iso) ·
 [View the License](LICENSE)
 
 </div>
diff --git a/VERSION b/VERSION
index 23aa839..0495c4a 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.2.2
+1.2.3