diff --git a/install/testnet-deploy.sh b/install/testnet-deploy.sh
new file mode 100755
index 000000000..1d0e5e7c1
--- /dev/null
+++ b/install/testnet-deploy.sh
@@ -0,0 +1,43 @@
+#!/usr/bin/env bash
+#
+# Convenience script to easily deploy a software update to one of the testnets
+#
+# Prerequisites:
+# 1) The default keypair should have some lamports (eg, `solana-wallet airdrop 123`)
+# 2) The file update_manifest_keypair.json should exist if this script is not
+#    run from the CI environment
+#
+set -e
+
+CHANNEL=$1
+TAG=$2
+
+if [[ -z $CHANNEL || -z $TAG ]]; then
+  echo "Usage: $0 [channel] [release tag]"
+  exit 0
+fi
+
+# Prefer possible `cargo build --all` binaries over PATH binaries
+PATH=$(cd "$(dirname "$0")/.."; echo "$PWD")/target/debug:$PATH
+
+# shellcheck disable=2154 # is referenced but not assigned
+if [[ -n $SOLANA_INSTALL_UPDATE_MANIFEST_KEYPAIR_x86_64_unknown_linux_gnu ]]; then
+  echo "$SOLANA_INSTALL_UPDATE_MANIFEST_KEYPAIR_x86_64_unknown_linux_gnu" > update_manifest_keypair.json
+fi
+
+case $CHANNEL in
+edge|beta)
+  URL=https://api.$CHANNEL.testnet.solana.com
+  ;;
+stable)
+  URL=https://api.testnet.solana.com
+  ;;
+*)
+  echo "Error: unknown channel: $CHANNEL"
+  exit 1
+esac
+
+set -x
+solana-install deploy --url "$URL" \
+  https://github.com/solana-labs/solana/releases/download/"$TAG"/solana-release-x86_64-unknown-linux-gnu.tar.bz2 \
+  update_manifest_keypair.json