diff --git a/.github/workflows/build.yaml b/.github/workflows/build.yaml
index a72f3ed..1e95469 100644
--- a/.github/workflows/build.yaml
+++ b/.github/workflows/build.yaml
@@ -10,7 +10,7 @@ on:
 jobs:
     # The job that will use the container image you just pushed to ghcr.io
     build:
-        runs-on: ubuntu-20.04
+        runs-on: ubuntu-latest
         container:
             image: klonyyy/armnoneeabi:2
         steps:
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 91d8d26..059ecba 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.5)
 set(CMAKE_CXX_STANDARD 14)
 
-set(MDTOOL_VERSION 1.5.3)
+set(MDTOOL_VERSION 1.5.4)
 
 set(MDTOOL_VERSION_TAG 'r')
 
diff --git a/README.md b/README.md
index 86e4f20..9e7f784 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,8 @@
+# Legacy warning
+This is most likely the final release of mdtool, it is now considered Legacy. We will still provide
+technical support for candle library and mdtool, guaranteed at least until 2026. 
+Further development of the CANdle Ecosystem is going to happen through [CANdle-SDK](https://github.com/mabrobotics/CANdle-SDK)
+
 # MDtool
 ![example workflow](https://github.com/mabrobotics/mdtool/actions/workflows/build.yaml/badge.svg)
 
diff --git a/candle b/candle
index a93f305..7c201d7 160000
--- a/candle
+++ b/candle
@@ -1 +1 @@
-Subproject commit a93f3054f819e208596e36789ecb56ee481812ed
+Subproject commit 7c201d744baa107ee408e3e01694efd1a764a174