diff --git a/Cargo.lock b/Cargo.lock
index 6582b976f554..64ecac495114 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -3125,8 +3125,7 @@ checksum = "b6c140620e7ffbb22c2dee59cafe6084a59b5ffc27a8859a5f0d494b5d52b6be"
 [[package]]
 name = "utoipa"
 version = "5.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2fcc29c80c21c31608227e0912b2d7fddba57ad76b606890627ba8ee7964e993"
+source = "git+https://github.com/rustyrussell/utoipa.git#26f4908b092a4a746cbec935e05165852ea01289"
 dependencies = [
  "indexmap 2.10.0",
  "serde",
@@ -3137,8 +3136,7 @@ dependencies = [
 [[package]]
 name = "utoipa-gen"
 version = "5.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6d79d08d92ab8af4c5e8a6da20c47ae3f61a0f1dabc1997cdf2d082b757ca08b"
+source = "git+https://github.com/rustyrussell/utoipa.git#26f4908b092a4a746cbec935e05165852ea01289"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -3149,8 +3147,7 @@ dependencies = [
 [[package]]
 name = "utoipa-swagger-ui"
 version = "9.0.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d047458f1b5b65237c2f6dc6db136945667f40a7668627b3490b9513a3d43a55"
+source = "git+https://github.com/rustyrussell/utoipa.git#26f4908b092a4a746cbec935e05165852ea01289"
 dependencies = [
  "axum 0.8.4",
  "base64 0.22.1",
@@ -3168,8 +3165,7 @@ dependencies = [
 [[package]]
 name = "utoipa-swagger-ui-vendored"
 version = "0.1.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e2eebbbfe4093922c2b6734d7c679ebfebd704a0d7e56dfcb0d05818ce28977d"
+source = "git+https://github.com/rustyrussell/utoipa.git#26f4908b092a4a746cbec935e05165852ea01289"
 
 [[package]]
 name = "valuable"
diff --git a/doc/contribute-to-core-lightning/release-checklist.md b/doc/contribute-to-core-lightning/release-checklist.md
index fd91889dcb69..24716f218f3e 100644
--- a/doc/contribute-to-core-lightning/release-checklist.md
+++ b/doc/contribute-to-core-lightning/release-checklist.md
@@ -24,18 +24,19 @@ Here's a checklist for the release process.
 2. Use `devtools/changelog.py` to collect the changelog entries from pull request commit messages and merge them into the manually maintained `CHANGELOG.md`.  This does API queries to GitHub, which are severely
    ratelimited unless you use an API token: set the `GH_TOKEN` environment variable to a Personal Access Token from <https://github.com/settings/tokens>
 3. Create a new CHANGELOG.md heading to `v<VERSION>rc1`, and create a link at the bottom. Note that you should exactly copy the date and name format from a previous release, as the `build-release.sh` script relies on this.
-4. Update the package versions: `make update-versions NEW_VERSION=<VERSION>rc1`
+4. Update the package versions: `make update-versions NEW_VERSION=v<VERSION>rc1`
 5. Create a PR with the above.
 
 ## Releasing -rc1
 
 1. Merge the above PR.
 2. Tag it `git pull && git tag -s v<VERSION>rc1`. Note that you should get a prompt to give this tag a 'message'. Make sure you fill this in.
-3. Confirm that the tag will show up for builds with `git describe`
-4. Push the tag to remote `git push --tags` (pushing the tag will kickoff the "Release 🚀" CI action which builds the release targets and a draft release).
-7. Run the script `contrib/cl-repro.sh` for [Builder image setup](https://docs.corelightning.org/docs/repro#builder-image-setup). This will create the required builder images `cl-repro-<codename>` for the next step.
-8. Sign the release locally by running `tools/build-release.sh --without-zip sign` which will sign the release contents and create SHA256SUMS and SHA256SUMS.asc in the release folder.  Compare these with `c-lightning-<release tag>`.zip on GitHub.
-9. Check the generated draft `v<VERSION>rc1` release on Github and check `Set as a pre-release` option.  Add the SHA256SUMS.asc from your local release folder to newly drafted release, replacing it.
+3. Confirm that the tag will show up for builds with `git describe`.  We don't push it to GitHub yet, just in case the following steps fail, and more fixes are required!
+5. Run the script `contrib/cl-repro.sh` for [Builder image setup](https://docs.corelightning.org/docs/repro#builder-image-setup). This will create the required builder images `cl-repro-<codename>` for the next step.
+6. Sign the release locally by running `tools/build-release.sh` which will sign the release contents and create `SHA256SUMS-v<VERSION>` and `SHA256SUMS-v<VERSION>.asc` in the release folder.
+7. Push the tag to remote `git push --tags` (pushing the tag will kickoff the "Release 🚀" CI action which builds the release targets and a draft release).
+8. Compare your release/`c-lightning-<release tag>`.zip on GitHub.
+9. Check the generated draft `v<VERSION>rc1` release on Github and check `Set as a pre-release` option.  Add the `SHA256SUMS-v<VERSION>.asc` from your local release folder to newly drafted release, replacing it.
 9. Announce rc1 release on core-lightning's release-chat channel on Discord & [BuildOnL2](https://community.corelightning.org/c/general-questions/).
 10. Use `devtools/credit --verbose v<PREVIOUS-VERSION>` to get commits, days and contributors data for release note.
 11. Prepare release notes draft including information from above step, and share with the team for editing.
@@ -46,10 +47,10 @@ Here's a checklist for the release process.
 ## Releasing -rc2, ..., -rcN
 
 1. Update CHANGELOG.md by changing rc(N-1) to rcN. Update the changelog list with information from newly merged PRs also.
-2. Update the package versions: `make update-versions NEW_VERSION=<VERSION>rcN`
+2. Update the package versions: `make update-versions NEW_VERSION=v<VERSION>rcN`
 3. Add a PR with the rcN.
 4. Tag it `git pull && git tag -s v<VERSION>rcN && git push --tags`
-5. Draft a new `v<VERSION>rcN` pre-release on Github, upload reproducible builds, SHA256SUMS and SHA256SUMS.asc.
+5. Draft a new `v<VERSION>rcN` pre-release on Github, upload reproducible builds, `SHA256SUMS-v<VERSION>` and `SHA256SUMS-v<VERSION>.asc`.
 5. Announce tagged rc release on core-lightning's release-chat channel on Discord & [BuildOnL2](https://community.corelightning.org/c/general-questions/).
 6. Upgrade your personal nodes to the rcN.
 7. Confirm that Github actions for PyPI and Docker publishing are working as expected.
@@ -57,31 +58,29 @@ Here's a checklist for the release process.
 ## Tagging the Release
 
 1. Update the CHANGELOG.md; remove -rcN in both places, update the date and add title and namer.
-2. Update the contrib/pyln package versions: `make update-versions NEW_VERSION=<VERSION>`
+2. Update the contrib/pyln package versions: `make update-versions NEW_VERSION=v<VERSION>`
 3. Add a PR with that release.
 4. Merge the PR, then:
-   - `export VERSION=23.05`
    - `git pull`
-   - `git tag -a -s v${VERSION} -m v${VERSION}`
+   - `VERSION=23.05; git tag -a -s v$VERSION -m v$VERSION`
    - `git push --tags`
-5. Run `tools/build-release.sh` to:
+5. Run `tools/build-release.sh` (with `--sudo` if you need root to run Docker) to:
    - Create reproducible zipfile
    - Build non-reproducible Fedora image
-   - Build reproducible Ubuntu-v18.04, Ubuntu-v20.04, Ubuntu-v22.04 images. Follow [link](https://docs.corelightning.org/docs/repro#building-using-the-builder-image) for manually Building Ubuntu Images.
+   - Build reproducible Ubuntu-v20.04, Ubuntu-v22.04 and Ubuntu-v24.04 images. Follow [link](https://docs.corelightning.org/docs/repro#building-using-the-builder-image) for manually Building Ubuntu Images.
    - Build Docker images for amd64 and arm64v8. Follow [link](https://docs.corelightning.org/docs/docker-images) for more details on Docker publishing.
    - Create and sign checksums. Follow [link](https://docs.corelightning.org/docs/repro#co-signing-the-release-manifest) for manually signing the release.
-6. The tarballs may be owned by root, so revert ownership if necessary:
+6. If you used `--sudo`, the tarballs may be owned by root, so revert ownership if necessary:
    `sudo chown ${USER}:${USER} *${VERSION}*`
 7. Upload the resulting files to github and save as a draft.
    (<https://github.com/ElementsProject/lightning/releases/>)
-8. Send `SHA256SUMS` & `SHA256SUMS.asc` files to the rest of the team to check and sign the release.
+8. Send `SHA256SUMS-v<VERSION>` & `SHA256SUMS-v<VERSION>.asc` files to the rest of the team to check and sign the release.
 9. Team members can verify the release with the help of `build-release.sh`:
-   1. Rename release captain's `SHA256SUMS` to `SHA256SUMS-v${VERSION}` and `SHA256SUMS.asc` to `SHA256SUMS-v${VERSION}.asc`.
-   2. Copy them in the root folder (`lightning`).
+   1. Copy the release captain's `SHA256SUMS-v<VERSION>` and `SHA256SUMS-v<VERSION>.asc` into the root folder (`lightning`).
    3. Run `tools/build-release.sh --verify`. It will create reproducible images, verify checksums and sign.
-   4. Send your signatures from `release/SHA256SUMS.new` to release captain.
+   4. Send your signatures from `release/SHA256SUMS-v<VERSION>.asc` to release captain.
    5. Or follow [link](https://docs.corelightning.org/docs/repro#verifying-a-reproducible-build) for manual verification instructions.
-10. Append signatures shared by the team into the `SHA256SUMS.asc` file, verify with `gpg --verify SHA256SUMS.asc` and include the file in the draft release.
+10. Append signatures shared by the team into the `SHA256SUMS-v<VERSION>.asc` file, verify with `gpg --verify SHA256SUMS-v<VERSION>.asc` and include the file in the draft release.
 11. The GitHub action `Publish Python 🐍 distributions 📦 to PyPI and TestPyPI` should upload the pyln modules to pypi.org. However, this can also be done manually by running `make pyln-release`. This process requires keys for each of the `pyln-client`, `pyln-proto`, and `pyln-testing` modules to be accessible to uv. You can set the key as an environment variable and build and publish each pyln release independently:
     - `export UV_PUBLISH_TOKEN=<pyln-client token>`
     - `make pyln-release-client`
@@ -91,7 +90,7 @@ Here's a checklist for the release process.
 
 ## Performing the Release
 
-1. Edit the GitHub draft and include the `SHA256SUMS.asc` file.
+1. Edit the GitHub draft and include the `SHA256SUMS-v<VERSION>.asc` file.
 2. Publish the release as not a draft.
 3. Announce the final release on core-lightning's release-chat channel on Discord & [BuildOnL2](https://community.corelightning.org/c/general-questions/).
 4. Send a mail to c-lightning and lightning-dev mailing lists, using the same wording as the Release Notes in GitHub.
@@ -99,7 +98,6 @@ Here's a checklist for the release process.
 
 ## Post-release
 
-1. Wait for a week to see if we need any point releases!
 2. Create a PR to update Makefile's CLN_NEXT_VERSION and important dates for the next release on `.github/PULL_REQUEST_TEMPLATE.md`.
 3. Look through PRs which were delayed for release and merge them.
 4. Close out the Milestone for the now-shipped release.
@@ -118,9 +116,9 @@ Here's a checklist for the release process.
 9. Create a new release draft for `v<VERSION>.<POINT_VERSION>` on GitHub, ensuring to check the `Set as a pre-release` option.
 10. Execute the script contrib/cl-repro.sh for the [Builder image setup](https://docs.corelightning.org/docs/repro#builder-image-setup). This will generate the builder images `cl-repro-<codename>` needed for the next step.
 11. Run the following script to prepare the required builds `tools/build-release.sh bin-Fedora bin-Ubuntu sign`.
-12. Upload the reproducible builds along with `SHA256SUMS` and `SHA256SUMS.asc` files from the release folder to the newly drafted release.
-13. Share the `SHA256SUMS` and `SHA256SUMS.asc` files with the team for verification and signing.
-14. Append the signatures received from the team to the `SHA256SUMS.asc` file. Verify the file using `gpg --verify SHA256SUMS.asc`. Then re-upload the file.
+12. Upload the reproducible builds along with `SHA256SUMS-v<VERSION>` and `SHA256SUMS-v<VERSION>.asc` files from the release folder to the newly drafted release.
+13. Share the `SHA256SUMS-v<VERSION>` and `SHA256SUMS-v<VERSION>.asc` files with the team for verification and signing.
+14. Append the signatures received from the team to the `SHA256SUMS-v<VERSION>.asc` file. Verify the file using `gpg --verify SHA256SUMS-v<VERSION>.asc`. Then re-upload the file.
 15. Finalize and publish the release (change it from draft to public).
 16. Ensure that the GitHub Actions for `Publish Python 🐍 distributions 📦 to PyPI and TestPyPI` and `Build and push multi-platform docker images` are functioning correctly. Check that the `PyPI` modules published on `https://pypi.org/project/pyln-*` and that the Docker image has been uploaded to Docker Hub.
 17. Announce the hotfix release in the core-lightning release-chat channel on Discord and on [BuildOnL2](https://community.corelightning.org/c/general-questions/).
diff --git a/plugins/rest-plugin/Cargo.toml b/plugins/rest-plugin/Cargo.toml
index 32b74a4f0b3d..09b38fae837f 100644
--- a/plugins/rest-plugin/Cargo.toml
+++ b/plugins/rest-plugin/Cargo.toml
@@ -26,12 +26,12 @@ rcgen = "0.13"
 hyper = "1"
 tower= "0.5"
 tower-http = { version = "0.6", features = ["cors", "set-header"] }
-utoipa = { version = "5", features = ['axum_extras'] }
+utoipa = { git = "https://github.com/rustyrussell/utoipa.git", features = ['axum_extras'] }
 
 log-panics = "2"
 socketioxide = "0.15"
 
 cln-plugin = { version = "0.5", path = "../../plugins" }
 cln-rpc = { version = "0.5", path = "../../cln-rpc" }
-utoipa-swagger-ui = { version = "9.0.0", features = ["vendored", "axum"] }
+utoipa-swagger-ui = { git = "https://github.com/rustyrussell/utoipa.git", features = ["vendored", "axum"] }
 
diff --git a/tools/build-release.sh b/tools/build-release.sh
index fb6478903039..ac0d3239e62f 100755
--- a/tools/build-release.sh
+++ b/tools/build-release.sh
@@ -8,6 +8,7 @@ if [ "$1" = "--inside-docker" ]; then
     PLTFM="$3"
     PLTFMVER="$4"
     ARCH="$5"
+    MAKEPAR="$6"
     git config --global --add safe.directory /src/.git
     git clone /src /build
     cd /build || exit
@@ -15,8 +16,8 @@ if [ "$1" = "--inside-docker" ]; then
     uv export --format requirements.txt > /tmp/requirements.txt
     uv pip install -r /tmp/requirements.txt
     ./configure
-    uv run make VERSION="$VER"
-    uv run make install DESTDIR=/"$VER-$PLTFM-$PLTFMVER-$ARCH" RUST_PROFILE=release
+    uv run make -j"$MAKEPAR" VERSION="$VER"
+    uv run make -j"$MAKEPAR" install DESTDIR=/"$VER-$PLTFM-$PLTFMVER-$ARCH" RUST_PROFILE=release
     cd /"$VER-$PLTFM-$PLTFMVER-$ARCH" && tar cvfz /release/clightning-"$VER-$PLTFM-$PLTFMVER-$ARCH".tar.gz -- *
     echo "Inside docker: build finished"
     exit 0
@@ -25,6 +26,7 @@ fi
 FORCE_UNCLEAN=false
 VERIFY_RELEASE=false
 WITHOUT_ZIP=false
+SUDO=
 
 ALL_TARGETS="bin-Fedora bin-Ubuntu docker sign"
 # ALL_TARGETS="bin-Fedora bin-Ubuntu tarball deb docker sign"
@@ -46,6 +48,9 @@ for arg; do
     --without-zip)
         WITHOUT_ZIP=true
         ;;
+    --sudo)
+        SUDO=sudo
+        ;;
     --help)
         echo "Usage: [--force-version=<ver>] [--force-unclean] [--force-mtime=YYYY-MM-DD] [--verify] [TARGETS]"
         echo Known targets: "$ALL_TARGETS"
@@ -82,6 +87,15 @@ if [ "$VERSION" = "" ]; then
     exit 1
 fi
 
+# Don't forget the v prefix!
+case "$VERSION" in
+    v*) ;;
+    *)
+	echo "Version must begin with v! Not $VERSION" >&2
+	exit 1
+	;;
+esac
+
 # `status --porcelain -u no` suppressed modified!  Bug reported...
 if [ "$(git diff --name-only)" != "" ] && ! $FORCE_UNCLEAN; then
     echo "Not a clean git directory" >&2
@@ -97,6 +111,9 @@ if [ -z "$MTIME" ]; then
     exit 1
 fi
 
+MAKEPAR=${MAKEPAR:-$(nproc)}
+echo "Parallel: $MAKEPAR"
+
 if [ "$VERIFY_RELEASE" = "true" ]; then
     if [ -f "SHA256SUMS-$VERSION.asc" ] && [ -f "SHA256SUMS-$VERSION" ]; then
         ALL_TARGETS="bin-Ubuntu"
@@ -127,6 +144,8 @@ if [ "$WITHOUT_ZIP" = "false" ]; then
     # submodcheck needs to know if we have lowdown
     touch config.vars
     ./configure --reconfigure
+    # If you don't have lowdown, your zip file will include it: we assume everyone has it now!
+    grep -q "HAVE_LOWDOWN=1" config.vars || (echo "Please install lowdown" >&2; exit 1)
     # If it's a completely clean directory, we need submodules!
     make submodcheck
 
@@ -163,20 +182,20 @@ for target in $TARGETS; do
         DOCKERFILE=contrib/docker/Dockerfile.builder.fedora
         FEDORA_VERSION=$(grep -oP '^FROM fedora:\K[0-9]+' "$DOCKERFILE")
         docker build -f $DOCKERFILE -t $TAG --load .
-        docker run --rm=true -v "$(pwd)":/src:ro -v "$RELEASEDIR":/release $TAG /src/tools/build-release.sh --inside-docker "$VERSION" "$platform" "$FEDORA_VERSION" "$ARCH"
+        docker run --rm=true -v "$(pwd)":/src:ro -v "$RELEASEDIR":/release $TAG /src/tools/build-release.sh --inside-docker "$VERSION" "$platform" "$FEDORA_VERSION" "$ARCH" "$MAKEPAR"
         docker run --rm=true -w /build $TAG rm -rf /"$VERSION-$platform-$FEDORA_VERSION-$ARCH" /build
         echo "Fedora Image Built"
         ;;
     Ubuntu*)
         distributions=${platform#Ubuntu-}
         [ "$distributions" = "Ubuntu" ] && distributions="focal jammy noble"
-		for d in $distributions; do
+	for d in $distributions; do
             # Capitalize the first letter of distro
             D=$(echo "$d" | awk '{print toupper(substr($0,1,1))substr($0,2)}')
-			echo "Building Ubuntu $D Image"
-			docker run --rm -v "$(pwd)":/repo -e FORCE_MTIME="$MTIME" -e FORCE_VERSION="$VERSION" cl-repro-"$d"
+	    echo "Building Ubuntu $D Image"
+	    docker run --rm -v "$(pwd)":/repo -e FORCE_MTIME="$MTIME" -e FORCE_VERSION="$VERSION" -e MAKEPAR="$MAKEPAR" cl-repro-"$d"
             echo "Ubuntu $D Image Built"
-		done
+	done
         ;;
     *)
         echo "No Dockerfile for $platform" >&2
@@ -195,21 +214,21 @@ if [ -z "${TARGETS##* docker *}" ]; then
     DOCKER_OPTS="$DOCKER_OPTS -t $DOCKER_USER/lightningd:latest"
     DOCKER_OPTS="$DOCKER_OPTS --cache-to=type=local,dest=/tmp/docker-cache --cache-from=type=local,src=/tmp/docker-cache"    
     echo "Docker Options: $DOCKER_OPTS"
-    if sudo docker buildx ls | grep -q 'cln-builder'; then
-        sudo docker buildx use cln-builder
+    if $SUDO docker buildx ls | grep -q 'cln-builder'; then
+        $SUDO docker buildx use cln-builder
     else
-        sudo docker buildx create --name=cln-builder --use
+        $SUDO docker buildx create --name=cln-builder --use
     fi
     # shellcheck disable=SC2086
-    sudo docker buildx build $DOCKER_OPTS .
+    $SUDO docker buildx build $DOCKER_OPTS .
     echo "Pushed multi-platform images tagged as $VERSION and latest"
 fi
 
 if [ -z "${TARGETS##* sign *}" ]; then
     echo "Signing Release"
     cd release/ || exit
-    sha256sum clightning-"$VERSION"* > SHA256SUMS
-    gpg -sb --armor -o SHA256SUMS.asc"$(gpgconf --list-options gpg | awk -F: '$1 == "default-key" {print $10}' | tr -d '"')" SHA256SUMS
+    sha256sum clightning-"$VERSION"* > SHA256SUMS-"$VERSION"
+    gpg -sb --armor -o SHA256SUMS-"$VERSION".asc "$(gpgconf --list-options gpg | awk -F: '$1 == "default-key" {print $10}' | tr -d '"')" SHA256SUMS-"$VERSION"
     cd ..
     echo "Release Signed"
 fi
diff --git a/tools/repro-build.sh b/tools/repro-build.sh
index b5a3af611507..c7b6e17f163e 100755
--- a/tools/repro-build.sh
+++ b/tools/repro-build.sh
@@ -9,19 +9,19 @@ export LANG LC_ALL
 for arg; do
     case "$arg" in
     --force-version=*)
-	    FORCE_VERSION=${arg#*=}
+	FORCE_VERSION=${arg#*=}
         ;;
-	--force-mtime=*)
-	    FORCE_MTIME=${arg#*=}
-	    ;;
-	--help)
-	    echo "Usage: [--force-version=<ver>] [--force-mtime=YYYY-MM-DD]"
-	    exit 0
-	    ;;
-	*)
-	    echo "Unknown arg $arg" >&2
-	    exit 1
-	    ;;
+    --force-mtime=*)
+	FORCE_MTIME=${arg#*=}
+	;;
+    --help)
+	echo "Usage: [--force-version=<ver>] [--force-mtime=YYYY-MM-DD]"
+	exit 0
+	;;
+    *)
+	echo "Unknown arg $arg" >&2
+	exit 1
+	;;
     esac
     shift
 done
@@ -56,6 +56,7 @@ fi
 ARCH=$(dpkg --print-architecture)
 PLATFORM="$OS"-"$VER"
 VERSION=${FORCE_VERSION:-$(git describe --tags --always --dirty=-modded --abbrev=7 2>/dev/null || pwd | sed -n 's,.*/clightning-\(v[0-9.rc\-]*\)$,\1,p')}
+MAKEPAR=${MAKEPAR:-1}
 
 # eg. ## [0.6.3] - 2019-01-09: "The Smallblock Conspiracy"
 # Skip 'v' here in $VERSION
@@ -160,8 +161,8 @@ $INST $(cut -c66- < /tmp/SHASUMS)
 # Once everyone has gcc8, we can use CC="gcc -ffile-prefix-map=$(pwd)=/home/clightning"
 ./configure --prefix=/usr CC="gcc -fdebug-prefix-map=$(pwd)=/home/clightning"
 # libwally wants "python".  Seems to work to force it here.
-make PYTHON_VERSION=3 VERSION="$VERSION"
-make install DESTDIR=inst/
+make -j"$MAKEPAR" PYTHON_VERSION=3 VERSION="$VERSION"
+make -j"$MAKEPAR" install DESTDIR=inst/
 
 cd inst && tar --sort=name \
       --mtime="$MTIME 00:00Z" \