From 830c540be1a9baa7927891f378c9491434809953 Mon Sep 17 00:00:00 2001
From: vados-cosmonic <123968127+vados-cosmonic@users.noreply.github.com>
Date: Wed, 28 Oct 2026 13:27:19 +0000
Subject: [PATCH] release: jco v1.40.0

Signed-off-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
---
 packages/jco/CHANGELOG.md | 40 +++++++++++++++++++++++++++++++++++++++
 packages/jco/package.json |  2 +-
 packages/jco/src/jco.ts   |  2 +-
 3 files changed, 42 insertions(+), 2 deletions(-)

diff --git a/packages/jco/CHANGELOG.md b/packages/jco/CHANGELOG.md
index a530d3ac6..cd04ca45d 100644
--- a/packages/jco/CHANGELOG.md
+++ b/packages/jco/CHANGELOG.md
@@ -1,5 +1,45 @@
 # Changelog
 
+## [1.40.0] - 2026-10-28
+
+### 🚀 Features
+
+- _(jco)_ build script engines and script-only components with --script-only by @vados-cosmonic
+
+- _(jco)_ cooperative threading by @TartanLlama
+
+- _(jco)_ add user-managed Perry componentization backend by @vados-cosmonic
+
+### 🐛 Bug Fixes
+
+- _(jco)_ support QuickJS 0.5 in the TLS fixture by @vados-cosmonic in #2310
+
+### 🎨 Styling
+
+- _(jco)_ format runtime CLI tests by @vados-cosmonic
+
+### 🧪 Testing
+
+- _(jco)_ unskip pthread tests by @TartanLlama in #2339
+
+- _(jco)_ run script-only coverage against workspace jco-transpile by @vados-cosmonic
+
+- _(jco)_ defer script-only coverage and run tests concurrently by @vados-cosmonic in #2311
+
+- _(jco)_ support current codegen and Node 22 script engines by @vados-cosmonic
+
+- _(jco)_ exercise runtime option through the CLI by @vados-cosmonic
+
+### ⚙️ Miscellaneous Tasks
+
+- _(jco)_ update jco-std to v0.10.0 by @vados-cosmonic in #2346
+
+- _(jco)_ update preview2-shim to v0.31.0 by @vados-cosmonic in #2341
+
+- _(jco)_ update jco-transpile to 0.21.0 by @vados-cosmonic in #2340
+
+- _(jco)_ bump componentize-qjs by @andreiltd in #2307
+
 ## [1.39.0] - 2026-10-16
 
 ### ⚙️ Miscellaneous Tasks
diff --git a/packages/jco/package.json b/packages/jco/package.json
index fc85e9ad5..0f41c938c 100644
--- a/packages/jco/package.json
+++ b/packages/jco/package.json
@@ -1,6 +1,6 @@
 {
     "name": "@bytecodealliance/jco",
-    "version": "1.39.0",
+    "version": "1.40.0",
     "description": "JavaScript tooling for working with WebAssembly Components",
     "keywords": [
         "Component",
diff --git a/packages/jco/src/jco.ts b/packages/jco/src/jco.ts
index 6bab3e528..5c69a7e01 100755
--- a/packages/jco/src/jco.ts
+++ b/packages/jco/src/jco.ts
@@ -26,7 +26,7 @@ program
     )
     .usage("<command> [options]")
     .enablePositionalOptions()
-    .version("1.39.0");
+    .version("1.40.0");
 
 function myParseInt(value: string): number {
     return parseInt(value, 10);