diff --git a/.vscodeignore b/.vscodeignore
index 65f44d1..b5ead5c 100644
--- a/.vscodeignore
+++ b/.vscodeignore
@@ -16,7 +16,9 @@ CLAUDE.md
 AGENTS.md
 CONTRIBUTING.md
 SECURITY.md
-# Local release working notes (untracked): vsce honours .vscodeignore only,
-# so it must be excluded here or it ships inside the published VSIX.
+# Local working notes and scratch checkouts (untracked): vsce honours .vscodeignore only —
+# a git exclude does NOT keep them out — so they must be listed here or they ship inside
+# the published VSIX. `npx vsce ls` before every release is what catches a new one.
 RELEASE_PLAN.md
+.tmp/**
 *.vsix
diff --git a/CHANGELOG.md b/CHANGELOG.md
index c2ab1dd..b2762fd 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,38 @@ All notable changes to this extension are documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.4.0] - 2026-08-05
+
+Sandboxes are now named after what they are, the views follow the config file instead of a
+snapshot of it, and a sandbox name that the Docker Sandboxes runtime refuses to release is
+never handed out again.
+
+### Added
+
+- **Sandboxes are named after their title.** A new sandbox takes its name from the title
+  you type — *Backend API (v2)* becomes `backend-api-v2` — instead of a counter on the
+  agent name (`claude`, `claude-2`, …). An empty title still falls back to the agent name.
+  The name is fixed at creation: renaming the title afterwards is safe, as before, and
+  never touches the sandbox, its Dockerfile, or its image.
+- **The views follow `.sandbox/config.yaml`.** Editing the file — by hand, from another
+  window, or through a `git pull` — refreshes the Sandboxes view and the status bar right
+  away. Renaming a sandbox and connecting immediately now uses the new name instead of
+  quietly acting on the old one.
+
+### Changed
+
+- **A name the runtime will not release is remembered and skipped.** When creating a
+  sandbox fails because its name is still held inside the Docker Sandboxes runtime — a
+  known upstream issue with no released fix — that name is recorded for this working copy,
+  and no new sandbox is given it again. Previously a name freed by a rename or a removal
+  was handed straight to the next sandbox, walking back into the same failure. The record
+  stays on your machine, holds names only, and is cleared by `sbx reset`.
+- **A new sandbox gets its own Dockerfile by default.** Because the default Dockerfile name
+  follows the sandbox name, two sandboxes on the same agent no longer share one generated
+  `claude.Dockerfile` by accident. Sharing is still available — type the same file name in
+  both — and is now something you choose rather than something that happens.
+- The extension is no longer marked as a preview.
+
 ## [0.3.0] - 2026-07-29
 
 Long operations — image builds, sandbox creation — used to run behind a notification that
@@ -121,5 +153,6 @@ Terminal-first commands over the `sbx` CLI (create, attach, stop, shell) with st
 discovery of existing sandboxes and per-repo sandbox identity in a single local file.
 Superseded by 0.2.0 and listed here only for history.
 
+[0.4.0]: https://github.com/ainova-systems/code-sandbox-console/releases/tag/v0.4.0
 [0.3.0]: https://github.com/ainova-systems/code-sandbox-console/releases/tag/v0.3.0
 [0.2.0]: https://github.com/ainova-systems/code-sandbox-console/releases/tag/v0.2.0
diff --git a/package-lock.json b/package-lock.json
index 01af269..94586e5 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "sandbox-console",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "sandbox-console",
-      "version": "0.3.0",
+      "version": "0.4.0",
       "license": "MIT",
       "dependencies": {
         "yaml": "^2.9.0"
@@ -1404,9 +1404,9 @@
       "license": "BSD-2-Clause"
     },
     "node_modules/brace-expansion": {
-      "version": "5.0.8",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-5.0.8.tgz",
-      "integrity": "sha512-JZyDyq3D4AUifKTPOB7DELf6XsB3WdPuNxCtob1vFXPsSXhdAiHBWJ/tJ8HAc9aH84BK+5JFZLNkJKx3G9kzQg==",
+      "version": "5.0.9",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-5.0.9.tgz",
+      "integrity": "sha512-ScQ4IuvIEF1TMlP7Zt+vjJ//9zlPb2SDcxWxM3bk8s6t6GGdJ7KO1dCcTidOPJKePW30LE/2cT7wCyPho9/Wxg==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
@@ -2067,9 +2067,9 @@
       }
     },
     "node_modules/fast-uri": {
-      "version": "3.1.4",
-      "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.4.tgz",
-      "integrity": "sha512-8JnbkQ4juDyvYs4mgFGQqg4yCYtFDtUtmp2QIQq11ZZe5CFQ5wcqm1rqDgAh/QdMySuBnPzMUiJUNZG5N/AiQw==",
+      "version": "3.1.5",
+      "resolved": "https://registry.npmjs.org/fast-uri/-/fast-uri-3.1.5.tgz",
+      "integrity": "sha512-gHwA1O9LDIcKunMKhObS/HimwtehO1nPUECKAu5TpKgaO19fcWEl4bliWe1jWxVFvIXztJjjQ4L8XQ1EU9f7Jw==",
       "dev": true,
       "funding": [
         {
diff --git a/package.json b/package.json
index fec6a97..63a114d 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,7 @@
   "name": "sandbox-console",
   "displayName": "Sandbox Console",
   "description": "Run AI coding agents (Claude Code, Codex, Gemini, …) in isolated, persistent Docker Sandboxes (sbx microVMs) — terminal-first, from a Sandbox Explorer, with no manual container management.",
-  "version": "0.3.0",
+  "version": "0.4.0",
   "publisher": "ainova-systems",
   "license": "MIT",
   "author": {
@@ -40,7 +40,6 @@
     "color": "#1F2430",
     "theme": "dark"
   },
-  "preview": true,
   "pricing": "Free",
   "main": "./dist/extension.js",
   "capabilities": {