diff --git a/switch-branch.sh b/switch-branch.sh
new file mode 100644
index 0000000..326ed4a
--- /dev/null
+++ b/switch-branch.sh
@@ -0,0 +1,32 @@
+#!/usr/bin/env bash
+
+NANO_VER=$(nano --version 2>/dev/null | awk '/version/ {print $4}' | awk -F . '{printf("%d%02d%02d", $1,  $2, $3)}')
+
+if [[ -z "${NANO_VER}" ]]; then
+  printf "Cannot determine nano's version\\n" >&2
+  exit 1
+fi
+
+printf 'Found nano version %s\n' "$(nano --version 2>/dev/null | awk '/version/ {print $4}')"
+
+if ((NANO_VER < 20105)); then
+  NANO_BRANCH='pre-2.1.5'
+elif ((NANO_VER < 20299)); then
+  NANO_BRANCH='pre-2.2.99'
+elif ((NANO_VER < 20302)); then
+  NANO_BRANCH='pre-2.3.2'
+elif ((NANO_VER < 20503)); then
+  NANO_BRANCH='pre-2.5.3'
+elif ((NANO_VER < 20905)); then
+  NANO_BRANCH='pre-2.9.5'
+elif ((NANO_VER < 40500)); then
+  NANO_BRANCH='pre-4.5'
+elif ((NANO_VER < 50000)); then
+  NANO_BRANCH='pre-5.0'
+else
+  NANO_BRANCH='master'
+fi
+
+printf 'Switching to branch %s\n' "${NANO_BRANCH}"
+
+git checkout "${NANO_BRANCH}"