vercel · marc-vercel · Jun 2, 2026 · Jun 2, 2026 · Jun 2, 2026
diff --git a/.changeset/fix-interactive-connect-resume.md b/.changeset/fix-interactive-connect-resume.md
diff --git a/packages/sandbox/CHANGELOG.md b/packages/sandbox/CHANGELOG.md
@@ -1,5 +1,11 @@
 # sandbox
 
+## 3.1.1
+
+### Patch Changes
+
+- Fix `sandbox connect` hanging or failing on a stopped/resumed sandbox. The interactive shell now surfaces `attach()` failures instead of swallowing them once the connection handshake lands, always stops the spinner on teardown (so a failure can no longer hang the process), and includes the in-sandbox server's stderr when the interactive server exits early. The in-sandbox `vc-interactive-server` also health-checks a reused server before trusting a leftover config file, so a stale `/tmp/vercel/interactive/config.json` restored from a snapshot no longer causes it to connect to a dead socket. ([#215](https://github.com/vercel/sandbox/pull/215))
+
 ## 3.1.0
 
 ### Minor Changes

diff --git a/packages/sandbox/docs/index.md b/packages/sandbox/docs/index.md
@@ -1,7 +1,7 @@
 ## `sandbox --help`
 
 ```
-sandbox 3.1.0
+sandbox 3.1.1
 
 ▲ sandbox [options] <command>
 

diff --git a/packages/sandbox/package.json b/packages/sandbox/package.json
@@ -1,7 +1,7 @@
 {
   "name": "sandbox",
   "description": "Command line interface for Vercel Sandbox",
-  "version": "3.1.0",
+  "version": "3.1.1",
   "scripts": {
     "clean": "rm -rf node_modules dist",
     "sandbox": "ts-node ./src/sandbox.ts",