diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4a86a4d..8ee3227 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,8 @@
+## [0.9.0] - 2025-12-10
+
+* Introduce a virgin Arch-based Nix flake E2E workflow that validates pkgmgr’s full flake installation path using shared caches for faster and reproducible CI runs.
+
+
 ## [0.8.0] - 2025-12-10
 
 * **v0.7.15 — Installer & Command Resolution Improvements**
diff --git a/PKGBUILD b/PKGBUILD
index 008ca61..d36e3f7 100644
--- a/PKGBUILD
+++ b/PKGBUILD
@@ -1,7 +1,7 @@
 # Maintainer: Kevin Veen-Birkenbach <info@veen.world>
 
 pkgname=package-manager
-pkgver=0.8.0
+pkgver=0.9.0
 pkgrel=1
 pkgdesc="Local-flake wrapper for Kevin's package-manager (Nix-based)."
 arch=('any')
diff --git a/debian/changelog b/debian/changelog
index bbbb35d..2e7d865 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+package-manager (0.9.0-1) unstable; urgency=medium
+
+  * Introduce a virgin Arch-based Nix flake E2E workflow that validates pkgmgr’s full flake installation path using shared caches for faster and reproducible CI runs.
+
+ -- Kevin Veen-Birkenbach <kevin@veen.world>  Wed, 10 Dec 2025 18:38:07 +0100
+
 package-manager (0.8.0-1) unstable; urgency=medium
 
   * **v0.7.15 — Installer & Command Resolution Improvements**
diff --git a/flake.nix b/flake.nix
index fae5bce..e5cd4a7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,7 +31,7 @@
         rec {
           pkgmgr = pyPkgs.buildPythonApplication {
             pname   = "package-manager";
-            version = "0.8.0";
+            version = "0.9.0";
 
             # Use the git repo as source
             src = ./.;
diff --git a/package-manager.spec b/package-manager.spec
index 947d1b0..eec2bd5 100644
--- a/package-manager.spec
+++ b/package-manager.spec
@@ -1,5 +1,5 @@
 Name:           package-manager
-Version:        0.8.0
+Version:        0.9.0
 Release:        1%{?dist}
 Summary:        Wrapper that runs Kevin's package-manager via Nix flake
 
@@ -77,6 +77,9 @@ echo ">>> package-manager removed. Nix itself was not removed."
 /usr/lib/package-manager/
 
 %changelog
+* Wed Dec 10 2025 Kevin Veen-Birkenbach <kevin@veen.world> - 0.9.0-1
+- Introduce a virgin Arch-based Nix flake E2E workflow that validates pkgmgr’s full flake installation path using shared caches for faster and reproducible CI runs.
+
 * Wed Dec 10 2025 Kevin Veen-Birkenbach <kevin@veen.world> - 0.8.0-1
 - **v0.7.15 — Installer & Command Resolution Improvements**
 
diff --git a/pyproject.toml b/pyproject.toml
index 2bbd6f5..542eaaf 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -7,7 +7,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "package-manager"
-version = "0.8.0"
+version = "0.9.0"
 description = "Kevin's package-manager tool (pkgmgr)"
 readme = "README.md"
 requires-python = ">=3.11"