diff --git a/.changeset/update-bun-1-4.md b/.changeset/update-bun-1-4.md
new file mode 100644
index 00000000000..f2f71b5a705
--- /dev/null
+++ b/.changeset/update-bun-1-4.md
@@ -0,0 +1,5 @@
+---
+"@kilocode/cli": patch
+---
+
+Build the CLI with Bun 1.4 to reduce compiled binary size and build time.
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 69612910fe0..895870a494f 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -16,7 +16,7 @@ The Kilo Community is [on Discord](https://kilo.ai/discord).
## Prerequisites
-- **Bun 1.3.14+** — required for all packages.
+- **Bun 1.4.0+** — required for all packages.
- **Java 21** — required by the JetBrains plugin. The root `bun turbo typecheck` and `bun turbo test:ci` commands include `@kilocode/kilo-jetbrains` and will fail without Java 21.
The preferred way to install Java is via [SDKMAN](https://sdkman.io/install):
@@ -41,7 +41,7 @@ The Kilo Community is [on Discord](https://kilo.ai/discord).
## Developing Kilo CLI
-- **Requirements:** Bun 1.3.14+, Java 21 (see [Prerequisites](#prerequisites) above)
+- **Requirements:** Bun 1.4.0+, Java 21 (see [Prerequisites](#prerequisites) above)
- Install dependencies and start the CLI from the repo root:
```bash
diff --git a/bun.lock b/bun.lock
index 3596dbed298..dd9b6393d3a 100644
--- a/bun.lock
+++ b/bun.lock
@@ -1070,7 +1070,7 @@
"@tanstack/solid-virtual": "3.13.32",
"@tsconfig/bun": "1.0.9",
"@tsconfig/node22": "22.0.2",
- "@types/bun": "1.3.14",
+ "@types/bun": "1.4.0",
"@types/cross-spawn": "6.0.6",
"@types/luxon": "3.7.1",
"@types/node": "24.12.4",
@@ -2537,7 +2537,7 @@
"@types/babel__traverse": ["@types/babel__traverse@7.28.0", "", { "dependencies": { "@babel/types": "^7.28.2" } }, "sha512-8PvcXf70gTDZBgt9ptxJ8elBeBjcLOAcOtoO/mPJjtji1+CdGbHgm77om1GrsPxsiE+uXIpNSK64UYaIwQXd4Q=="],
- "@types/bun": ["@types/bun@1.3.14", "", { "dependencies": { "bun-types": "1.3.14" } }, "sha512-h1hFqFVcvAvD9j9K7ZW7vd82aSA+rTdznZa+5bwvCwqSB1jmmfLcbIWhOLx1/+boy/xmjgCs/OMUL8hRJSmnPw=="],
+ "@types/bun": ["@types/bun@1.4.0", "", { "dependencies": { "bun-types": "1.4.0" } }, "sha512-K+lZULY23vRgK/CfTjFIV+tyifaNdSMlPh9j+6mQ/cLfpOznLyAuzgV/JQysyECpkBQLVMSyvjlr2fBUSA9wFQ=="],
"@types/cacache": ["@types/cacache@20.0.1", "", { "dependencies": { "@types/node": "*", "minipass": "*" } }, "sha512-QlKW3AFoFr/hvPHwFHMIVUH/ZCYeetBNou3PCmxu5LaNDvrtBlPJtIA6uhmU9JRt9oxj7IYoqoLcpxtzpPiTcw=="],
@@ -2975,7 +2975,7 @@
"bun-pty": ["bun-pty@0.4.8", "", {}, "sha512-rO70Mrbr13+jxHHHu2YBkk2pNqrJE5cJn29WE++PUr+GFA0hq/VgtQPZANJ8dJo6d7XImvBk37Innt8GM7O28w=="],
- "bun-types": ["bun-types@1.3.14", "", { "dependencies": { "@types/node": "*" } }, "sha512-4N0ig0fEomHt5R0KCFWjovxow98rIoRwKolrYdCcknNwMekCXRnWEUvgu5soYV8QXtVsrUD8B95MBOZGPvr6KQ=="],
+ "bun-types": ["bun-types@1.4.0", "", { "dependencies": { "@types/node": "*" } }, "sha512-iIKw23BspnQQYd3prITOBxeUsxBHnwzX6YJfGMuNOZzeNcMmVqzIIVGRm1l69ogaPQmb4wB6BN8mA5bE9YuC5Q=="],
"bundle-name": ["bundle-name@4.1.0", "", { "dependencies": { "run-applescript": "^7.0.0" } }, "sha512-tjwM5exMg6BGRI+kNmTntNsvdZS1X8BFYS6tnJ2hdH0kVxM6/eVZ2xy+FqStSWvYmtfFMDLIxurorHwDKfDz5Q=="],
diff --git a/bunfig.toml b/bunfig.toml
index 61bb6e0fdb3..2c85f597487 100644
--- a/bunfig.toml
+++ b/bunfig.toml
@@ -2,7 +2,7 @@
exact = true
# Keep Kilo's longer supply-chain quarantine while allowing packages that must track coordinated releases.
minimumReleaseAge = 410520 # seconds (~4.75 days / ~114 hours)
-minimumReleaseAgeExcludes = ["mermaid", "@mermaid-js/parser", "@ai-sdk/amazon-bedrock", "@ai-sdk/anthropic", "@opentui/core", "@opentui/core-darwin-arm64", "@opentui/core-darwin-x64", "@opentui/core-linux-arm64", "@opentui/core-linux-arm64-musl", "@opentui/core-linux-x64", "@opentui/core-linux-x64-musl", "@opentui/core-win32-arm64", "@opentui/core-win32-x64", "@opentui/keymap", "@opentui/solid", "opentui-spinner", "gitlab-ai-provider", "opencode-gitlab-auth", "@ff-labs/fff-node", "@ff-labs/fff-bun", "@ff-labs/fff-bin-darwin-arm64", "@ff-labs/fff-bin-darwin-x64", "@ff-labs/fff-bin-linux-arm64-gnu", "@ff-labs/fff-bin-linux-arm64-musl", "@ff-labs/fff-bin-linux-x64-gnu", "@ff-labs/fff-bin-linux-x64-musl", "@ff-labs/fff-bin-win32-arm64", "@ff-labs/fff-bin-win32-x64", "@pierre/diffs", "@pierre/theming", "app-builder-lib", "dmg-builder", "electron-builder", "electron-publish"]
+minimumReleaseAgeExcludes = ["mermaid", "@mermaid-js/parser", "@ai-sdk/amazon-bedrock", "@ai-sdk/anthropic", "@opentui/core", "@opentui/core-darwin-arm64", "@opentui/core-darwin-x64", "@opentui/core-linux-arm64", "@opentui/core-linux-arm64-musl", "@opentui/core-linux-x64", "@opentui/core-linux-x64-musl", "@opentui/core-win32-arm64", "@opentui/core-win32-x64", "@opentui/keymap", "@opentui/solid", "opentui-spinner", "gitlab-ai-provider", "opencode-gitlab-auth", "@ff-labs/fff-node", "@ff-labs/fff-bun", "@ff-labs/fff-bin-darwin-arm64", "@ff-labs/fff-bin-darwin-x64", "@ff-labs/fff-bin-linux-arm64-gnu", "@ff-labs/fff-bin-linux-arm64-musl", "@ff-labs/fff-bin-linux-x64-gnu", "@ff-labs/fff-bin-linux-x64-musl", "@ff-labs/fff-bin-win32-arm64", "@ff-labs/fff-bin-win32-x64", "@pierre/diffs", "@pierre/theming", "app-builder-lib", "dmg-builder", "electron-builder", "electron-publish", "@types/bun", "bun-types"] # kilocode_change
[test]
root = "./do-not-run-tests-from-root"
diff --git a/nix/bun.nix b/nix/bun.nix
index a8808953494..f9bc2543374 100644
--- a/nix/bun.nix
+++ b/nix/bun.nix
@@ -14,19 +14,19 @@ let
sources = {
"aarch64-linux" = {
name = "bun-linux-aarch64";
- hash = "sha256-on/7Y6gxA3WDbg1vZorhf6jY0YuIw3yCHGUzGXOhmjs=";
+ hash = "sha256-SxozLuhhmD65O8/m93D/+U4+MbLDiL2uo8jtNeWO7Q4=";
};
"x86_64-linux" = {
name = "bun-linux-x64";
- hash = "sha256-lR7iruhV8IWVruxiJSJqKY0/6oOj3NZGXAnLzN9+hI8=";
+ hash = "sha256-LQP7X7g6yLVnrKCigbLOGhoZ1Ij1bClo2Iw/Jekv5FI=";
};
"aarch64-darwin" = {
name = "bun-darwin-aarch64";
- hash = "sha256-2LliIYKK1vl6x6wKt+lYcjQa92MAHogD6CZ2UsJlJiA=";
+ hash = "sha256-xmnpf2Fk4cluBwF0jbmN+ndJKQjL2DlMdVcTSnNd44E=";
};
"x86_64-darwin" = {
name = "bun-darwin-x64";
- hash = "sha256-QYPfM3RiPlurMVxUfPoJdFM81FfYa3O2OfeoeXTNZjM=";
+ hash = "sha256-HQIRuPHcmRGCNEaHrRXnLuhvFUhFpff6R3mUzTQd2bA=";
};
};
source =
diff --git a/package.json b/package.json
index efbc37aeb8c..efddc08e6d6 100644
--- a/package.json
+++ b/package.json
@@ -4,7 +4,7 @@
"description": "AI-powered development tool",
"private": true,
"type": "module",
- "packageManager": "bun@1.3.14",
+ "packageManager": "bun@1.4.0",
"scripts": {
"dev": "KILO_CLIENT=cli bun run --cwd packages/opencode --conditions=node src/index.ts",
"dev:stats": "bun sst shell --stage=production -- bun run --cwd packages/stats/app dev",
@@ -35,7 +35,7 @@
"@effect/platform-node": "4.0.0-beta.83",
"@anthropic-ai/sandbox-runtime": "0.0.63",
"@npmcli/arborist": "9.4.0",
- "@types/bun": "1.3.14",
+ "@types/bun": "1.4.0",
"@types/cross-spawn": "6.0.6",
"@octokit/rest": "22.0.0",
"@opentui/core": "0.4.5",
diff --git a/packages/containers/bun-node/Dockerfile b/packages/containers/bun-node/Dockerfile
index 8c93e45502a..ddfe934f20d 100644
--- a/packages/containers/bun-node/Dockerfile
+++ b/packages/containers/bun-node/Dockerfile
@@ -6,7 +6,7 @@ FROM ${REGISTRY}/build/base:24.04
SHELL ["/bin/bash", "-lc"]
ARG NODE_VERSION=24.4.0
-ARG BUN_VERSION=1.3.14
+ARG BUN_VERSION=1.4.0
ENV BUN_INSTALL=/opt/bun
ENV PATH=/opt/bun/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin
diff --git a/packages/core/src/aisdk.ts b/packages/core/src/aisdk.ts
index b604dac664b..bc0280036b6 100644
--- a/packages/core/src/aisdk.ts
+++ b/packages/core/src/aisdk.ts
@@ -35,7 +35,7 @@ function wrapSSE(res: Response, ms: number, ctl: AbortController) {
const id = setTimeout(() => {
const err = new Error("SSE read timed out")
ctl.abort(err)
- void reader.cancel(err)
+ void reader.cancel(err).catch(() => undefined) // kilocode_change - handle Bun 1.4 cancellation rejection
reject(err)
}, ms)
diff --git a/packages/kilo-docs/pages/contributing/development-environment.md b/packages/kilo-docs/pages/contributing/development-environment.md
index e2f77c6cc9c..a7c0c6830dd 100644
--- a/packages/kilo-docs/pages/contributing/development-environment.md
+++ b/packages/kilo-docs/pages/contributing/development-environment.md
@@ -16,7 +16,7 @@ This document will help you set up your development environment and understand h
Before you begin, make sure you have the following installed:
1. **Git** - For version control
-2. **Bun 1.3.14+** - Required for installing dependencies and running scripts
+2. **Bun 1.4.0+** - Required for installing dependencies and running scripts
3. **Visual Studio Code** - Our recommended IDE for development
4. **Java 21** - Required only when running JetBrains plugin checks or repo-level checks that include `@kilocode/kilo-jetbrains`
diff --git a/packages/kilo-vscode/docs/mercury-next-edit-testing.html b/packages/kilo-vscode/docs/mercury-next-edit-testing.html
index 5772426f254..599d30a4ba0 100644
--- a/packages/kilo-vscode/docs/mercury-next-edit-testing.html
+++ b/packages/kilo-vscode/docs/mercury-next-edit-testing.html
@@ -276,7 +276,7 @@ Prerequisites
- VSCode ≥ 1.105.1 (matches kilocode's
engines.vscode)
-
- Bun ≥ 1.3.14 (the build script checks the version) — install via
+ Bun ≥ 1.4.0 (the build script checks the version) — install via
brew install bun or bun.sh
- GitHub CLI (
gh) — optional but makes the PR checkout one command
diff --git a/packages/opencode/script/build.ts b/packages/opencode/script/build.ts
index d8cd761083d..6de30f0c948 100755
--- a/packages/opencode/script/build.ts
+++ b/packages/opencode/script/build.ts
@@ -312,15 +312,8 @@ for (const item of targets) {
// kilocode_change end
format: "esm",
minify: true,
- // kilocode_change start - disable code-splitting to avoid a Bun 1.3.14 codegen bug.
- // With splitting:true Bun emits cross-chunk re-exports like `import{vn as G9}` whose
- // binding isn't top-level, so the compiled binary crashes at startup on the baseline
- // target: "SyntaxError: Exported binding 'G9' needs to refer to a top-level declared
- // variable." (Bun oven-sh/bun#25621, #5344, #7265; also opencode#23349). Fixed upstream
- // in Bun#26089, post-1.3.14. Splitting only deduped shared code between the entrypoints;
- // turning it off inlines per entrypoint and produces a valid binary.
- splitting: false,
- // kilocode_change end
+ // Bun 1.4 fixes the cross-chunk re-export codegen bug from Bun 1.3.14.
+ splitting: true, // kilocode_change
compile: {
autoloadBunfig: false,
autoloadDotenv: false,
diff --git a/packages/opencode/src/bun-compat.d.ts b/packages/opencode/src/bun-compat.d.ts
new file mode 100644
index 00000000000..03de3f4fc9f
--- /dev/null
+++ b/packages/opencode/src/bun-compat.d.ts
@@ -0,0 +1,12 @@
+// kilocode_change - new file
+// Bun 1.4 narrows NodeJS.Process event overloads.
+declare global {
+ namespace NodeJS {
+ interface Process {
+ on(event: string | symbol, listener: (...args: never[]) => void): this
+ off(event: string | symbol, listener: (...args: never[]) => void): this
+ }
+ }
+}
+
+export {}
diff --git a/packages/opencode/src/provider/provider.ts b/packages/opencode/src/provider/provider.ts
index 4e5f5dac4a1..9b1b7066c4c 100644
--- a/packages/opencode/src/provider/provider.ts
+++ b/packages/opencode/src/provider/provider.ts
@@ -64,7 +64,7 @@ function wrapSSE(res: Response, ms: number, ctl: AbortController) {
const id = setTimeout(() => {
const err = new ProviderError.ResponseStreamError("SSE read timed out")
ctl.abort(err)
- void reader.cancel(err)
+ void reader.cancel(err).catch(() => undefined) // kilocode_change - handle Bun 1.4 cancellation rejection
reject(err)
}, ms)
diff --git a/patches/@ff-labs%2Ffff-bun@0.9.4.patch b/patches/@ff-labs%2Ffff-bun@0.9.4.patch
index 0216f860ca6..40d4cd81512 100644
--- a/patches/@ff-labs%2Ffff-bun@0.9.4.patch
+++ b/patches/@ff-labs%2Ffff-bun@0.9.4.patch
@@ -29,3 +29,109 @@ index 3454256..6dca25a 100644
if (existsSync(binaryPath)) {
return binaryPath;
+diff --git a/src/ffi.ts b/src/ffi.ts
+--- a/src/ffi.ts
++++ b/src/ffi.ts
+@@ -328,6 +328,10 @@
+ return new TextEncoder().encode(`${s}\0`);
+ }
+-
++
++function asResult(value: Pointer | bigint | null): Pointer | null {
++ return value as unknown as Pointer | null;
++}
++
+ /**
+ * Convert snake_case keys to camelCase recursively
+ */
+@@ -1121,4 +1126,4 @@
+ minComboCount,
+ );
+- return parseSearchResult(resultPtr);
++ return parseSearchResult(asResult(resultPtr));
+ }
+@@ -1145,4 +1150,4 @@
+ pageSize,
+ );
+- return parseSearchResult(resultPtr);
++ return parseSearchResult(asResult(resultPtr));
+ }
+@@ -1168,4 +1173,4 @@
+ pageSize,
+ );
+- return parseDirSearchResult(resultPtr);
++ return parseDirSearchResult(asResult(resultPtr));
+ }
+@@ -1195,4 +1200,4 @@
+ minComboCount,
+ );
+- return parseMixedSearchResult(resultPtr);
++ return parseMixedSearchResult(asResult(resultPtr));
+ }
+@@ -1230,4 +1235,4 @@
+ classifyDefinitions,
+ );
+- return parseGrepResult(resultPtr);
++ return parseGrepResult(asResult(resultPtr));
+ }
+@@ -1265,4 +1270,4 @@
+ classifyDefinitions,
+ );
+- return parseGrepResult(resultPtr);
++ return parseGrepResult(asResult(resultPtr));
+ }
+@@ -1274,4 +1279,4 @@
+ const library = loadLibrary();
+ const resultPtr = library.symbols.fff_scan_files(handle);
+- return parseVoidResult(resultPtr);
++ return parseVoidResult(asResult(resultPtr));
+ }
+@@ -1291,4 +1296,4 @@
+ const library = loadLibrary();
+ const resultPtr = library.symbols.fff_get_base_path(handle);
+- return parseStringResult(resultPtr);
++ return parseStringResult(asResult(resultPtr));
+ }
+@@ -1336,4 +1341,4 @@
+ const library = loadLibrary();
+ const resultPtr = library.symbols.fff_wait_for_scan(handle, BigInt(timeoutMs));
+- return parseBoolResult(resultPtr);
++ return parseBoolResult(asResult(resultPtr));
+ }
+@@ -1351,4 +1356,4 @@
+ const library = loadLibrary();
+ const resultPtr = library.symbols.fff_restart_index(handle, ptr(encodeString(newPath)));
+- return parseVoidResult(resultPtr);
++ return parseVoidResult(asResult(resultPtr));
+ }
+@@ -1360,4 +1365,4 @@
+ const library = loadLibrary();
+ const resultPtr = library.symbols.fff_refresh_git_status(handle);
+- return parseIntResult(resultPtr);
++ return parseIntResult(asResult(resultPtr));
+ }
+@@ -1377,4 +1382,4 @@
+ ptr(encodeString(filePath)),
+ );
+- return parseBoolResult(resultPtr);
++ return parseBoolResult(asResult(resultPtr));
+ }
+@@ -1392,4 +1397,4 @@
+ const library = loadLibrary();
+ const resultPtr = library.symbols.fff_get_historical_query(handle, BigInt(offset));
+- return parseStringResult(resultPtr);
++ return parseStringResult(asResult(resultPtr));
+ }
+@@ -1306,3 +1311,3 @@
+ const library = loadLibrary();
+ const resultPtr = library.symbols.fff_get_scan_progress(handle);
+- const envelope = readResultEnvelope(resultPtr);
++ const envelope = readResultEnvelope(asResult(resultPtr));
+@@ -1406,6 +1411,6 @@
+ const library = loadLibrary();
+ const resultPtr = library.symbols.fff_health_check(
+ handle ?? (0 as unknown as Pointer),
+ ptr(encodeString(testPath)),
+ );
+- return parseJsonResult(resultPtr);
++ return parseJsonResult(asResult(resultPtr));
diff --git a/script/upstream/package.json b/script/upstream/package.json
index 1705aea7aea..329c079a6e9 100644
--- a/script/upstream/package.json
+++ b/script/upstream/package.json
@@ -22,7 +22,7 @@
"ts-morph": "^24.0.0"
},
"devDependencies": {
- "@types/bun": "1.3.14"
+ "@types/bun": "1.4.0"
},
"peerDependencies": {}
}