diff --git a/CHANGELOG.md b/CHANGELOG.md
index 10636b5e..8f27b493 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,16 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
+## [3.4.0] - 2023-09-15
+
+### Changed
+    - Bump Stax SDK versions
+    - Bump Rust stable version to 1.72.0
+
+### Added
+    - cargo-ledger version 1.1.0
+    - llvm15 tools
+
 ## [3.3.0] - 2023-09-01
 
 ### Changed
diff --git a/full/Dockerfile b/full/Dockerfile
index 0ba16176..304df979 100644
--- a/full/Dockerfile
+++ b/full/Dockerfile
@@ -1,5 +1,11 @@
 FROM ghcr.io/ledgerhq/ledger-app-builder/ledger-app-builder-lite:latest
 
+ARG RUST_STABLE_VERSION=1.72.0
+ARG RUST_NIGHTLY_VERSION=nightly-2022-12-02
+
+# Add curl for Rust buildchain
+RUN apk add curl
+
 # Define rustup/cargo home directories
 ENV RUSTUP_HOME=/opt/rustup \
     CARGO_HOME=/opt/.cargo
@@ -9,15 +15,17 @@ RUN apk add rustup
 # Adding cargo binaries to PATH
 ENV PATH=${CARGO_HOME}/bin:${PATH}
 
-# Installing rustup and setting the default toolchain to the 1.67.0 stable channel.
-RUN rustup-init --default-toolchain 1.67.0 -y
+# Installing rustup and setting the default toolchain to the RUST_STABLE_VERSION stable channel.
+RUN rustup-init --default-toolchain $RUST_STABLE_VERSION -y
 
-# Installing nightly channel version 1.67.0 as well.
-RUN rustup install nightly-2022-12-02
+# Installing nightly channel version RUST_NIGHTLY_VERSION as well.
+RUN rustup install $RUST_NIGHTLY_VERSION
 
 # Adding ARMV6M target to the installed toolchains
-RUN rustup target add thumbv6m-none-eabi --toolchain 1.67.0
-RUN rustup target add thumbv6m-none-eabi --toolchain nightly-2022-12-02
+RUN rustup target add thumbv6m-none-eabi --toolchain $RUST_NIGHTLY_VERSION
 
 # Adding rust-src component to nightly channel
-RUN rustup component add rust-src --toolchain nightly-2022-12-02
+RUN rustup component add rust-src --toolchain $RUST_NIGHTLY_VERSION
+
+# Add cargo ledger (needs a version of Rust >= 1.70)
+RUN cargo install --locked --git=https://github.com/LedgerHQ/cargo-ledger.git --rev 1.1.0 cargo-ledger
diff --git a/legacy/Dockerfile b/legacy/Dockerfile
index cfdfe58c..d35694d6 100644
--- a/legacy/Dockerfile
+++ b/legacy/Dockerfile
@@ -7,11 +7,17 @@ ARG DEBIAN_FRONTEND=noninteractive
 
 ARG LLVM_VERSION=12
 
+ARG RUST_STABLE_VERSION=1.72.0
+ARG RUST_NIGHTLY_VERSION=nightly-2022-12-02
+
 RUN apt-get update && apt-get upgrade -qy
 RUN apt-get install -qy \
         clang-$LLVM_VERSION \
         cmake \
         curl \
+        wget \
+        gpg-agent \
+        software-properties-common \
         git \
         lld-$LLVM_VERSION \
         make \
@@ -43,19 +49,27 @@ ENV PATH=/opt/gcc-arm-none-eabi-10.3-2021.10/bin:$PATH \
 # Adding cargo binaries to PATH
 ENV PATH=${CARGO_HOME}/bin:${PATH}
 
-# Installing rustup to manage rust toolchains and setting the default toolchain to the 1.67.0 stable channel
+# Installing rustup to manage rust toolchains and setting the default toolchain to the RUST_STABLE_VERSION stable channel
 RUN curl https://sh.rustup.rs -sSf | \
-    sh -s -- --default-toolchain 1.67.0 -y
+    sh -s -- --default-toolchain $RUST_STABLE_VERSION -y
 
-# Installing nightly channel version 1.67.0 as well.
-RUN rustup install nightly-2022-12-02
+# Installing nightly channel version RUST_NIGHTLY_VERSION as well.
+RUN rustup install $RUST_NIGHTLY_VERSION
 
 # Adding ARMV6M target to the installed toolchains
-RUN rustup target add thumbv6m-none-eabi --toolchain 1.67.0
-RUN rustup target add thumbv6m-none-eabi --toolchain nightly-2022-12-02
+RUN rustup target add thumbv6m-none-eabi --toolchain $RUST_NIGHTLY_VERSION
 
 # Adding rust-src component to nightly channel
-RUN rustup component add rust-src --toolchain nightly-2022-12-02
+RUN rustup component add rust-src --toolchain $RUST_NIGHTLY_VERSION
+
+# Add cargo ledger (needs a version of Rust >= 1.70)
+RUN cargo install --locked --git=https://github.com/LedgerHQ/cargo-ledger.git --rev 1.1.0 cargo-ledger
+
+# Adding LLVM-15 APT repository and installing it
+RUN wget --no-check-certificate -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
+RUN add-apt-repository -y "deb http://apt.llvm.org/focal/ llvm-toolchain-focal-15 main"
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends llvm-15
 
 # Python package to load app onto device
 RUN pip3 install ledgerblue
diff --git a/lite/Dockerfile b/lite/Dockerfile
index a6f636d7..cf4fc9c8 100644
--- a/lite/Dockerfile
+++ b/lite/Dockerfile
@@ -3,6 +3,13 @@ ENV LANG C.UTF-8
 
 RUN apk update
 RUN apk upgrade
+
+# Adding LLVM-15 APT repository and installing it
+# LLVM-15 is only present starting from the v3.17 Alpine version
+RUN apk add --repository=http://dl-cdn.alpinelinux.org/alpine/v3.17/main llvm15
+RUN ln -s /usr/lib/llvm15/bin/llvm-objcopy /usr/bin/llvm-objcopy-15
+RUN ln -s /usr/lib/llvm15/bin/llvm-nm /usr/bin/llvm-nm-15
+
 RUN apk add \
         bash \
         clang \
@@ -76,9 +83,9 @@ ENV NANOSP_SDK=/opt/nanosplus-secure-sdk
 RUN git -C "$LEDGER_SECURE_SDK" worktree add "$NANOSP_SDK" v1.8.0
 RUN echo nanos2 > $NANOSP_SDK/.target
 
-# Latest Stax SDK (OS stax_1.3.0-rc3 => based on API_LEVEL 12)
+# Latest Stax SDK (OS stax_1.3.0-rc4 => based on API_LEVEL 13)
 ENV STAX_SDK=/opt/stax-secure-sdk
-RUN git -C "$LEDGER_SECURE_SDK" worktree add "$STAX_SDK" v12.3.0
+RUN git -C "$LEDGER_SECURE_SDK" worktree add "$STAX_SDK" v13.0.0
 RUN echo stax > $STAX_SDK/.target
 
 # Default SDK