diff --git a/release.sh b/release.sh
new file mode 100644
index 0000000..a299ad4
--- /dev/null
+++ b/release.sh
@@ -0,0 +1,34 @@
+#!/usr/bin/env sh
+
+VERSION="$1"
+TAG="release-v${VERSION}"
+
+
+if git tag | grep "$TAG"; then
+    git checkout "$TAG"
+else
+    git reset --hard
+    git clean -fd
+    sed -i "s/__version__.*/__version__ = \"${VERSION}\"/g" src/python/cram/__init__.py
+    git commit src/python/cram/__init__.py -m "[automated] Release version ${VERSION}"
+    git tag "release-v${VERSION}"
+    git push
+    git push --tags
+fi
+
+bazel build cram
+
+TON="$HOME/ton"
+mkdir -p "$TON/key"
+cp ~/.ssh/id_arrdem@arrdem.pub "$TON/key"
+chmod 644 "$TON/key"/*
+
+D="$TON/pkg/arrdem/cram/v${VERSION}"
+BUILD="${D}/cram"
+SIG="${D}/cram.sig"
+mkdir -p "$D"
+cp -f ./bazel-bin/cram "${BUILD}"
+rm -f "${SIG}"
+ssh-keygen -Y sign -f ~/.ssh/id_arrdem@arrdem -n "${SIG}" "${BUILD}"
+
+git checkout trunk