diff --git a/.github/workflows/build-dockers.yml b/.github/workflows/build-dockers.yml
index 7195d78..55fcb3d 100644
--- a/.github/workflows/build-dockers.yml
+++ b/.github/workflows/build-dockers.yml
@@ -46,6 +46,8 @@ jobs:
             tag: ubuntu-22.04-3.9
           - path: ci/ci-ubuntu-24.04-3.10
             tag: ubuntu-24.04-3.10
+          - path: ci/ci-ubuntu-26.04-3.11
+            tag: ubuntu-26.04-3.11
     name: ${{ matrix.tag }}
     environment: github-action-autobuild
     steps:
diff --git a/ci/ci-ubuntu-26.04-3.11/Dockerfile b/ci/ci-ubuntu-26.04-3.11/Dockerfile
new file mode 100644
index 0000000..6df1842
--- /dev/null
+++ b/ci/ci-ubuntu-26.04-3.11/Dockerfile
@@ -0,0 +1,151 @@
+ARG UBUNTU_VERSION=26.04
+ARG SCCACHE_VERSION=0.10.0
+ARG APT_INSTALL_COMMAND="apt-get install -qy --no-install-recommends"
+
+
+FROM ubuntu:${UBUNTU_VERSION} AS sccache-builder
+ARG SCCACHE_VERSION
+ARG APT_INSTALL_COMMAND
+LABEL maintainer="mmueller@gnuradio.org"
+
+ENV DEBIAN_FRONTEND=noninteractive
+RUN apt-get update -q ;\
+    ${APT_INSTALL_COMMAND} \
+    cargo \
+    ca-certificates \
+    pkg-config \
+    libssl-dev \
+    && apt-get clean
+RUN cargo install \
+    --locked \
+    --quiet \
+    --target-dir /build \
+    --root /target \
+    sccache@${SCCACHE_VERSION} \
+    && rm -rf /build
+
+
+
+FROM ubuntu:${UBUNTU_VERSION}
+ARG APT_INSTALL_COMMAND
+LABEL maintainer="martin@gnuradio.org"
+ENV security_updates_as_of=2026-01-31
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+# Prepare distribution
+RUN sed -i 's/Types: deb/& deb-src/' /etc/apt/sources.list.d/ubuntu.sources \
+  && apt-get update -q \
+  && apt-get -y upgrade \
+  && apt-get clean && apt-get autoclean
+
+RUN \
+  ${APT_INSTALL_COMMAND} \
+  appstream-util \
+  ca-certificates \
+  ccache \
+  clang-format \
+  cmake \
+  git \
+  lcov \
+  pkg-config \
+  xvfb \
+  # for bundling up results
+  squashfs-tools \
+  && apt-get clean && apt-get autoclean
+
+# Prepare distribution
+RUN apt-get update -q \
+    && apt-get -y upgrade \
+    && apt-get clean && apt-get autoclean
+
+# Build deps
+RUN ${APT_INSTALL_COMMAND} \
+  cmake \
+  g++ \
+  cppzmq-dev \
+  debhelper-compat \
+  dh-python \
+  dpkg-dev \
+  gir1.2-gtk-3.0 \
+  gir1.2-pango-1.0 \
+  graphviz \
+  libad9361-dev \
+  libasound2-dev \
+  libboost-date-time-dev \
+  libboost-dev \
+  libboost-program-options-dev \
+  libboost-regex-dev \
+  libboost-test-dev \
+  libboost-thread-dev \
+  libcodec2-dev \
+  libcppunit-dev \
+  libfftw3-dev \
+  libfontconfig-dev \
+  libgmp-dev \
+  libgsl-dev \
+  libgsm1-dev \
+  libiio-dev \
+  libjack-jackd2-dev \
+  libjs-mathjax \
+  libpulse-dev \
+  libqt6opengl6-dev \
+  libqt6svg6-dev \
+  libsdl1.2-dev \
+  libsndfile1-dev \
+  libsoapysdr-dev \
+  libspdlog-dev \
+  libthrift-dev \
+  libuhd-dev \
+  libunwind-dev \
+  libusb-1.0-0-dev \
+  libvolk-dev \
+  libxi-dev \
+  libxrender-dev \
+  ninja-build \
+  pkgconf \
+  portaudio19-dev \
+  pybind11-dev \
+  thrift-compiler \
+  xauth \
+  xmlto \
+  && apt-get clean && apt-get autoclean
+
+# Py3 deps
+RUN ${APT_INSTALL_COMMAND} \
+  python3-click \
+  python3-dev \
+  python3-gi \
+  python3-gi-cairo \
+  python3-jsonschema \
+  python3-lxml \
+  python3-mako \
+  python3-numpy-dev \
+  python3-opengl \
+  python3-packaging \
+  python3-pygccxml \
+  python3-pyqt6 \
+  python3-pytest \
+  python3-schema \
+  python3-scipy \
+  python3-thrift \
+  python3-yaml \
+  python3-zmq \
+  pyqt6-dev-tools \
+  python3-pyqt6.qtsvg \
+  && apt-get clean && apt-get autoclean
+
+
+# Install Qwt-Qt6 (from Debian Testing)
+RUN ${APT_INSTALL_COMMAND} wget && apt-get clean && apt-get autoclean
+
+RUN wget http://ftp.de.debian.org/debian/pool/main/q/qwt/libqwt-headers_6.3.0-3_amd64.deb && \
+  wget http://ftp.de.debian.org/debian/pool/main/q/qwt/libqwt-qt6-6.3_6.3.0-3_amd64.deb && \
+  wget http://ftp.de.debian.org/debian/pool/main/q/qwt/libqwt-qt6-dev_6.3.0-3_amd64.deb
+
+RUN dpkg -i libqwt-headers_6.3.0-3_amd64.deb && \
+  dpkg -i libqwt-qt6-6.3_6.3.0-3_amd64.deb && \
+  dpkg -i libqwt-qt6-dev_6.3.0-3_amd64.deb
+
+# Copy over sccache
+COPY --from=sccache-builder /target/bin/sccache /usr/bin/sccache