diff --git a/custom_components/gree_controller/manifest.json b/custom_components/gree_controller/manifest.json
index 18af4e6..5275fbf 100644
--- a/custom_components/gree_controller/manifest.json
+++ b/custom_components/gree_controller/manifest.json
@@ -1,7 +1,7 @@
 {
   "domain": "gree_controller",
   "name": "GREE Controller",
-  "version": "0.14.19",
+  "version": "0.14.20",
   "config_flow": true,
   "integration_type": "hub",
   "iot_class": "local_polling",
diff --git a/gree-controller/CHANGELOG.md b/gree-controller/CHANGELOG.md
index 6143841..6427998 100644
--- a/gree-controller/CHANGELOG.md
+++ b/gree-controller/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## 0.14.20
+
+- Fixes ARM cross-build startup by removing the invalid `xx-cargo --version` probe; `xx-cargo build` remains the cross-compilation entry point.
+- Installs the Rust target standard library in a cacheable layer before project sources are copied, so source-only changes do not redownload/reinstall it.
+- Fetches Cargo dependencies before target-specific setup so amd64/arm64 reuse the same registry/git cache.
+- Separates compiled `target/` caches by target architecture to avoid multi-platform build contention while retaining incremental dependency reuse.
+- Keeps the existing `build.sh` workflow and `DISTRO=alpine` (musl/Alpine) versus `DISTRO=trixie` (GNU/glibc Debian Trixie) runtime selection unchanged.
+
 ## 0.14.19
 
 - Speeds up multi-architecture OCI builds by running Rust/Cargo on `BUILDPLATFORM` and cross-compiling to amd64/arm64 instead of compiling ARM under QEMU.
diff --git a/gree-controller/config.yaml b/gree-controller/config.yaml
index 80568e7..d7e0e75 100644
--- a/gree-controller/config.yaml
+++ b/gree-controller/config.yaml
@@ -1,5 +1,5 @@
 name: "GREE Controller"
-version: "0.14.19"
+version: "0.14.20"
 slug: "gree_controller"
 description: "Local GREE HVAC controller with Web UI and Home Assistant integration"
 url: "https://git.linuxiarz.pl/gru/gree-controller-ha-addon/"