diff --git a/.github/workflows/build-container.yml b/.github/workflows/build-container.yml
index 058c4801f7df8..5f97cfbd394d4 100644
--- a/.github/workflows/build-container.yml
+++ b/.github/workflows/build-container.yml
@@ -13,7 +13,7 @@ env:
 jobs:
   build:
     name: Build container
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     outputs:
       tag: ${{ steps.prepare.outputs.tag }}
       repo: ${{ steps.prepare.outputs.repo }}
diff --git a/.github/workflows/build-depends.yml b/.github/workflows/build-depends.yml
index f77e35c366a9c..e942a59776f8a 100644
--- a/.github/workflows/build-depends.yml
+++ b/.github/workflows/build-depends.yml
@@ -19,7 +19,7 @@ on:
 jobs:
   build-depends:
     name: Build depends
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     outputs:
       key:  ${{ steps.restore.outputs.cache-primary-key }}
     container:
diff --git a/.github/workflows/build-src.yml b/.github/workflows/build-src.yml
index 5fd76a580187d..45411eaa51f5c 100644
--- a/.github/workflows/build-src.yml
+++ b/.github/workflows/build-src.yml
@@ -19,7 +19,7 @@ on:
 jobs:
   build-src:
     name: Build source
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     container:
       image: ${{ inputs.container-path }}
       options: --user root
diff --git a/.github/workflows/release_docker_hub.yml b/.github/workflows/release_docker_hub.yml
index bbdf7551928b0..e9f157ab6aab9 100644
--- a/.github/workflows/release_docker_hub.yml
+++ b/.github/workflows/release_docker_hub.yml
@@ -7,7 +7,7 @@ on:
 jobs:
   release:
     name: Release to Docker Hub
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-24.04
     steps:
     - name: Checkout
       uses: actions/checkout@v3
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 99c281ebe47f4..6cbc4440cf154 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -1,4 +1,4 @@
-image: "ubuntu:jammy"
+image: "ubuntu:noble"
 
 variables:
   DOCKER_DRIVER: overlay2
diff --git a/contrib/containers/ci/Dockerfile b/contrib/containers/ci/Dockerfile
index 6312faade4bdc..ffb39c711c32a 100644
--- a/contrib/containers/ci/Dockerfile
+++ b/contrib/containers/ci/Dockerfile
@@ -1,4 +1,4 @@
-FROM ubuntu:jammy
+FROM ubuntu:noble
 
 # Needed to prevent tzdata hanging while expecting user input
 ENV DEBIAN_FRONTEND="noninteractive" TZ="Europe/London"
@@ -7,16 +7,9 @@ ENV DEBIAN_FRONTEND="noninteractive" TZ="Europe/London"
 # (zlib1g-dev is needed for the Qt host binary builds, but should not be used by target binaries)
 ENV APT_ARGS="-y --no-install-recommends --no-upgrade"
 
-# Install packages for i386 on amd64 hosts, then install common packages
+# Install common packages
 RUN set -ex; \
     apt-get update && \
-    if [ "$(dpkg --print-architecture)" = "amd64" ]; then \
-        dpkg --add-architecture i386 && \
-        apt-get update && \
-        apt-get install $APT_ARGS \
-        g++-multilib \
-        wine32; \
-    fi; \
     apt-get install $APT_ARGS \
     autotools-dev \
     automake \
@@ -138,12 +131,12 @@ RUN set -ex; \
     mkdir -p /opt/shellcheck && tar -xf /tmp/shellcheck.tar.xz -C /opt/shellcheck --strip-components=1 && rm /tmp/shellcheck.tar.xz
 ENV PATH="/opt/shellcheck:${PATH}"
 
-# Add user with specified (or default) user/group ids and setup configuration files
-ARG USER_ID=1000
-ARG GROUP_ID=1000
+# Setup unprivileged user and configuration files
+ARG USER_ID=1000 \
+    GROUP_ID=1000
 RUN set -ex; \
-    groupadd -g ${GROUP_ID} dash; \
-    useradd -u ${USER_ID} -g dash -s /bin/bash -m -d /home/dash dash; \
+    groupmod -g ${GROUP_ID} -n dash ubuntu; \
+    usermod -u ${USER_ID} -md /home/dash -l dash ubuntu; \
     mkdir -p /home/dash/.config/gdb; \
     echo "add-auto-load-safe-path /usr/lib/llvm-${LLVM_VERSION}/lib" | tee /home/dash/.config/gdb/gdbinit; \
     chown ${USER_ID}:${GROUP_ID} -R /home/dash
@@ -156,7 +149,6 @@ RUN apt-get update && apt-get install $APT_ARGS \
     g++-mingw-w64-x86-64 \
     jq \
     libz-dev \
-    libncurses5 \
     nsis \
     python3-zmq \
     parallel \
@@ -166,12 +158,6 @@ RUN apt-get update && apt-get install $APT_ARGS \
     zip \
     && rm -rf /var/lib/apt/lists/*
 
-# This is a hack. It is needed because gcc-multilib and g++-multilib are conflicting with g++-arm-linux-gnueabihf. This is
-# due to gcc-multilib installing the following symbolic link, which is needed for -m32 support. However, this causes
-# arm builds to also have the asm folder implicitly in the include search path. This is kind of ok, because the asm folder
-# for arm has precedence.
-RUN ln -s x86_64-linux-gnu/asm /usr/include/asm
-
 # Make sure std::thread and friends is available
 RUN \
   update-alternatives --set x86_64-w64-mingw32-gcc  /usr/bin/x86_64-w64-mingw32-gcc-posix; \
diff --git a/contrib/containers/deploy/Dockerfile b/contrib/containers/deploy/Dockerfile
index 06e9b6aacfff7..e5c3b7bafb434 100644
--- a/contrib/containers/deploy/Dockerfile
+++ b/contrib/containers/deploy/Dockerfile
@@ -1,18 +1,13 @@
-FROM phusion/baseimage:jammy-1.0.4
+FROM phusion/baseimage:noble-1.0.0
 LABEL maintainer="Dash Developers <dev@dash.org>"
 LABEL description="Dockerised DashCore, built from CI"
 
-ARG USER_ID
-ARG GROUP_ID
-
-ENV HOME="/home/dash"
-
-# add user with specified (or default) user/group ids
-ENV USER_ID="${USER_ID:-1000}"
-ENV GROUP_ID="${GROUP_ID:-1000}"
-RUN groupadd -g ${GROUP_ID} dash && \
-    useradd -u ${USER_ID} -g dash -s /bin/bash -m -d /home/dash dash && \
-    mkdir /home/dash/.dashcore && \
+# Setup unprivileged user
+ARG USER_ID=1000 \
+    GROUP_ID=1000
+RUN groupmod -g ${GROUP_ID} -n dash ubuntu; \
+    usermod -u ${USER_ID} -md /home/dash -l dash ubuntu; \
+    mkdir -p /home/dash/.dashcore && \
     chown ${USER_ID}:${GROUP_ID} -R /home/dash
 
 COPY bin/* /usr/local/bin/
diff --git a/contrib/containers/deploy/Dockerfile.GitHubActions.Dispatch b/contrib/containers/deploy/Dockerfile.GitHubActions.Dispatch
index 4db05ed6c25f5..e2439f72c09c2 100644
--- a/contrib/containers/deploy/Dockerfile.GitHubActions.Dispatch
+++ b/contrib/containers/deploy/Dockerfile.GitHubActions.Dispatch
@@ -1,6 +1,6 @@
 # syntax=docker/dockerfile:1.3
 
-FROM --platform=$BUILDPLATFORM ubuntu:jammy as builder
+FROM --platform=$BUILDPLATFORM ubuntu:noble as builder
 RUN apt-get update && \
     apt-get -y install --no-install-recommends \
     automake \
@@ -42,7 +42,7 @@ RUN mkdir built-target && \
   "linux/amd64") cp depends/x86_64-pc-linux-gnu/bin/dash* /home/dash/built-target ;; \
 esac
 
-FROM ubuntu:jammy
+FROM ubuntu:noble
 LABEL maintainer="Dash Developers <dev@dash.org>"
 LABEL description="Dockerised DashCore"
 
@@ -52,12 +52,12 @@ ARG TAG
 
 ENV HOME="/home/dash"
 
-# add user with specified (or default) user/group ids
-ENV USER_ID="${USER_ID:-1000}"
-ENV GROUP_ID="${GROUP_ID:-1000}"
-RUN groupadd -g ${GROUP_ID} dash && \
-    useradd -u ${USER_ID} -g dash -s /bin/bash -m -d /home/dash dash  && \
-    mkdir /home/dash/.dashcore && \
+# Setup unprivileged user
+ARG USER_ID=1000 \
+    GROUP_ID=1000
+RUN groupmod -g ${GROUP_ID} -n dash ubuntu; \
+    usermod -u ${USER_ID} -md /home/dash -l dash ubuntu; \
+    mkdir -p /home/dash/.dashcore && \
     chown ${USER_ID}:${GROUP_ID} -R /home/dash
 
 RUN apt-get update && \
diff --git a/contrib/containers/deploy/Dockerfile.GitHubActions.Release b/contrib/containers/deploy/Dockerfile.GitHubActions.Release
index c32bada29c588..e222faf07bc80 100644
--- a/contrib/containers/deploy/Dockerfile.GitHubActions.Release
+++ b/contrib/containers/deploy/Dockerfile.GitHubActions.Release
@@ -1,4 +1,4 @@
-FROM ubuntu:jammy
+FROM ubuntu:noble
 LABEL maintainer="Dash Developers <dev@dash.org>"
 LABEL description="Dockerised DashCore"
 
@@ -9,12 +9,12 @@ ARG GITHUB_REPOSITORY
 
 ENV HOME /home/dash
 
-# add user with specified (or default) user/group ids
-ENV USER_ID ${USER_ID:-1000}
-ENV GROUP_ID ${GROUP_ID:-1000}
-RUN groupadd -g ${GROUP_ID} dash && \
-    useradd -u ${USER_ID} -g dash -s /bin/bash -m -d /home/dash dash  && \
-    mkdir /home/dash/.dashcore && \
+# Setup unprivileged user
+ARG USER_ID=1000 \
+    GROUP_ID=1000
+RUN groupmod -g ${GROUP_ID} -n dash ubuntu; \
+    usermod -u ${USER_ID} -md /home/dash -l dash ubuntu; \
+    mkdir -p /home/dash/.dashcore && \
     chown ${USER_ID}:${GROUP_ID} -R /home/dash
 
 RUN apt-get update && \
diff --git a/contrib/containers/develop/Dockerfile b/contrib/containers/develop/Dockerfile
index e6157e09c945c..fa0926ad0d9db 100644
--- a/contrib/containers/develop/Dockerfile
+++ b/contrib/containers/develop/Dockerfile
@@ -1,6 +1,6 @@
 # syntax = edrevo/dockerfile-plus
 
-FROM ubuntu:jammy
+FROM ubuntu:noble
 
 INCLUDE+ ci/Dockerfile
 
diff --git a/contrib/containers/guix/Dockerfile b/contrib/containers/guix/Dockerfile
index 861678502c0ad..89d052403e4c5 100644
--- a/contrib/containers/guix/Dockerfile
+++ b/contrib/containers/guix/Dockerfile
@@ -2,7 +2,7 @@
 #       to use 'docker compose run guix_ubuntu' to drop into an
 #       interactive shell
 
-FROM ubuntu:jammy
+FROM ubuntu:noble
 
 SHELL ["/bin/bash", "-c"]
 
@@ -65,15 +65,11 @@ RUN groupadd --system guixbuild && \
               "guixbuilder${i}" ;                \
     done
 
-# Create unprivileged user
+# Setup unprivileged user and grant it passwordless sudo
 ARG USER_ID=1000 \
-    GROUP_ID=1000 \
-    USERNAME=ubuntu
-RUN groupadd -g ${GROUP_ID} ${USERNAME} && \
-    useradd -u ${USER_ID} -g ${USERNAME} -s /bin/bash -m -d /home/${USERNAME} ${USERNAME}
-
-# Grant it passwordless admin permissions
-RUN usermod -aG sudo ${USERNAME} && \
+    GROUP_ID=1000
+RUN groupmod -g ${GROUP_ID} ubuntu; \
+    usermod -u ${USER_ID} -aG sudo ubuntu; \
     echo '%sudo ALL=(ALL) NOPASSWD:ALL' >> /etc/sudoers
 
 # Copy required files to container
@@ -85,16 +81,16 @@ COPY --from=docker_root ./scripts/setup-sdk    /usr/local/bin/setup-sdk
 
 # Create directories for mounting to save/restore cache and grant necessary permissions
 RUN mkdir -p \
-        /home/${USERNAME}/.cache \
+        /home/ubuntu/.cache \
         /src/dash/depends/{built,sources,work}; \
     chown -R ${USER_ID}:${GROUP_ID} \
-        /home/${USERNAME}/.cache \
+        /home/ubuntu/.cache \
         /src;
 
 WORKDIR "/src/dash"
 
 # Switch to unprivileged context
-USER ${USERNAME}
+USER ubuntu
 
 # Set entrypoint to copied file
 ENTRYPOINT ["/usr/local/bin/entrypoint"]
diff --git a/depends/packages/qt.mk b/depends/packages/qt.mk
index 67d6b812b7f71..cc8094cc332d1 100644
--- a/depends/packages/qt.mk
+++ b/depends/packages/qt.mk
@@ -25,6 +25,7 @@ $(package)_patches += memory_resource.patch
 $(package)_patches += clang_18_libpng.patch
 $(package)_patches += utc_from_string_no_optimize.patch
 $(package)_patches += windows_lto.patch
+$(package)_patches += zlib-timebits64.patch
 
 $(package)_qttranslations_file_name=qttranslations-$($(package)_suffix)
 $(package)_qttranslations_sha256_hash=5b94d1a11b566908622fcca2f8b799744d2f8a68da20be4caa5953ed63b10489
@@ -257,6 +258,7 @@ define $(package)_preprocess_cmds
   patch -p1 -i $($(package)_patch_dir)/fast_fixed_dtoa_no_optimize.patch && \
   patch -p1 -i $($(package)_patch_dir)/guix_cross_lib_path.patch && \
   patch -p1 -i $($(package)_patch_dir)/windows_lto.patch && \
+  patch -p1 -i $($(package)_patch_dir)/zlib-timebits64.patch && \
   mkdir -p qtbase/mkspecs/macx-clang-linux &&\
   cp -f qtbase/mkspecs/macx-clang/qplatformdefs.h qtbase/mkspecs/macx-clang-linux/ &&\
   cp -f $($(package)_patch_dir)/mac-qmake.conf qtbase/mkspecs/macx-clang-linux/qmake.conf && \
diff --git a/depends/patches/qt/zlib-timebits64.patch b/depends/patches/qt/zlib-timebits64.patch
new file mode 100644
index 0000000000000..139c1dfa77f3e
--- /dev/null
+++ b/depends/patches/qt/zlib-timebits64.patch
@@ -0,0 +1,31 @@
+From a566e156b3fa07b566ddbf6801b517a9dba04fa3 Mon Sep 17 00:00:00 2001
+From: Mark Adler <madler@alumni.caltech.edu>
+Date: Sat, 29 Jul 2023 22:13:09 -0700
+Subject: [PATCH] Avoid compiler complaints if _TIME_BITS defined when building
+ zlib.
+
+zlib does not use time_t, so _TIME_BITS is irrelevant. However it
+may be defined anyway as part of a sledgehammer indiscriminately
+applied to all builds.
+
+From https://github.com/madler/zlib/commit/a566e156b3fa07b566ddbf6801b517a9dba04fa3.patch
+---
+ qtbase/src/3rdparty/zlib/src/gzguts.h | 5 ++---
+ 1 file changed, 2 insertions(+), 3 deletions(-)
+
+diff --git a/qtbase/src/3rdparty/zlib/src/gzguts.h b/qtbase/src/3rdparty/zlib/src/gzguts.h
+index e23f831f5..f9375047e 100644
+--- a/qtbase/src/3rdparty/zlib/src/gzguts.h
++++ b/qtbase/src/3rdparty/zlib/src/gzguts.h
+@@ -26,9 +26,8 @@
+ #  ifndef _LARGEFILE_SOURCE
+ #    define _LARGEFILE_SOURCE 1
+ #  endif
+-#  ifdef _FILE_OFFSET_BITS
+-#    undef _FILE_OFFSET_BITS
+-#  endif
++#  undef _FILE_OFFSET_BITS
++#  undef _TIME_BITS
+ #endif
+ 
+ #ifdef HAVE_HIDDEN
diff --git a/test/sanitizer_suppressions/ubsan b/test/sanitizer_suppressions/ubsan
index ba08cef801a9b..13787ed3bdc37 100644
--- a/test/sanitizer_suppressions/ubsan
+++ b/test/sanitizer_suppressions/ubsan
@@ -100,3 +100,8 @@ shift-base:streams.h
 shift-base:test/fuzz/crypto_diff_fuzz_chacha20.cpp
 shift-base:util/bip32.cpp
 vptr:bls/bls.h
+
+# -fsanitize=float-cast-overflow suppressions
+# ===============================
+# See QTBUG-133261
+float-cast-overflow:qRound