From 15c638d2dee8809fdbfc688e6f3ad22f7d38c8b4 Mon Sep 17 00:00:00 2001
From: tsushanth <78000697+tsushanth@users.noreply.github.com>
Date: Sat, 13 Jun 2026 14:47:40 -0700
Subject: [PATCH 1/4] fix(ext/node): util.styleText() returns text unchanged
 when stream is not a TTY

---
 ext/node/polyfills/internal/util/inspect.mjs |  8 +++++++
 tests/unit_node/util_test.ts                 | 25 ++++++++++++++++++++
 2 files changed, 33 insertions(+)

diff --git a/ext/node/polyfills/internal/util/inspect.mjs b/ext/node/polyfills/internal/util/inspect.mjs
index e9b65ee5119e29..b156a9b711fe08 100644
--- a/ext/node/polyfills/internal/util/inspect.mjs
+++ b/ext/node/polyfills/internal/util/inspect.mjs
@@ -676,6 +676,14 @@ function styleText(format, text, options) {
         stream,
       );
     }
+    // Node's util.styleText returns the text unchanged when the target stream
+    // is not a TTY, so callers can pass any writable and only get color when
+    // the destination would render it.
+    if (
+      stream !== undefined && stream !== null && !stream.isTTY
+    ) {
+      return text;
+    }
   }
 
   const formatArray = ArrayIsArray(format) ? format : [format];
diff --git a/tests/unit_node/util_test.ts b/tests/unit_node/util_test.ts
index d0821966c7e742..faee2183218f9e 100644
--- a/tests/unit_node/util_test.ts
+++ b/tests/unit_node/util_test.ts
@@ -271,6 +271,31 @@ Deno.test("[util] styleText() with array of formats", () => {
   assertEquals(colored, "\x1b[31m\x1b[32merror\x1b[39m\x1b[39m");
 });
 
+Deno.test("[util] styleText() respects stream.isTTY", () => {
+  const streamTTY = { write() {}, isTTY: true };
+  const streamNoTTY = { write() {}, isTTY: false };
+
+  assertEquals(
+    util.styleText("bgYellow", "TTY", { stream: streamTTY }),
+    "\x1b[43mTTY\x1b[49m",
+  );
+  assertEquals(
+    util.styleText("bgYellow", "No TTY", { stream: streamNoTTY }),
+    "No TTY",
+  );
+});
+
+Deno.test("[util] styleText() with validateStream: false bypasses isTTY check", () => {
+  const streamNoTTY = { write() {}, isTTY: false };
+  assertEquals(
+    util.styleText("bgYellow", "forced", {
+      stream: streamNoTTY,
+      validateStream: false,
+    }),
+    "\x1b[43mforced\x1b[49m",
+  );
+});
+
 Deno.test("[util] stripVTControlCharacters() removes OSC 8 hyperlinks", () => {
   // OSC 8 hyperlink with ESC \ (ST) terminator
   const input =

From e1870bb7281f163c93252a840e7ce3c072199d74 Mon Sep 17 00:00:00 2001
From: tsushanth <78000697+tsushanth@users.noreply.github.com>
Date: Sat, 13 Jun 2026 15:13:56 -0700
Subject: [PATCH 2/4] chore(npm): point peer-dependency warning at the
 overrides remedy (#35196)

---
 libs/npm_installer/resolution.rs                             | 3 ++-
 tests/specs/install/peer_dep_specific_constraint/install.out | 3 ++-
 2 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/libs/npm_installer/resolution.rs b/libs/npm_installer/resolution.rs
index c24cd83f0dc3a4..65e9610ae04b9e 100644
--- a/libs/npm_installer/resolution.rs
+++ b/libs/npm_installer/resolution.rs
@@ -410,7 +410,8 @@ fn peer_dep_diagnostics_to_display_tree(
   // now output it
   let mut root_node = DisplayTreeNode {
     text: format!(
-      "{} The following peer dependency issues were found:",
+      "{} The following peer dependency issues were found.\n\
+        To resolve, pin the affected package(s) under \"overrides\" in your package.json (https://docs.npmjs.com/cli/v10/configuring-npm/package-json#overrides):",
       colors::yellow("Warning")
     ),
     children: Vec::new(),
diff --git a/tests/specs/install/peer_dep_specific_constraint/install.out b/tests/specs/install/peer_dep_specific_constraint/install.out
index d0547b9cf13284..50711dc956400b 100644
--- a/tests/specs/install/peer_dep_specific_constraint/install.out
+++ b/tests/specs/install/peer_dep_specific_constraint/install.out
@@ -1,6 +1,7 @@
 Download http://localhost:4260/@denotest%2fadd
 Download http://localhost:4260/@denotest%2fpeer-dep-specific-constraint
-Warning The following peer dependency issues were found:
+Warning The following peer dependency issues were found.
+  To resolve, pin the affected package(s) under "overrides" in your package.json (https://docs.npmjs.com/cli/v10/configuring-npm/package-json#overrides):
 └─┬ @denotest/peer-dep-specific-constraint@1.0.0
   └── peer @denotest/add@0.5: resolved to 1.0.0
 

From 8ad7191e3df5a8a547d51b6cdf36deeec48d63fb Mon Sep 17 00:00:00 2001
From: tsushanth <78000697+tsushanth@users.noreply.github.com>
Date: Sat, 13 Jun 2026 15:15:29 -0700
Subject: [PATCH 3/4] feat(jupyter): support transport="ipc" in kernel
 connection file (#35201)

---
 cli/js/jupyter_kernel.js | 53 ++++++++++++++++++++++++++++++----------
 1 file changed, 40 insertions(+), 13 deletions(-)

diff --git a/cli/js/jupyter_kernel.js b/cli/js/jupyter_kernel.js
index 1610d20f95301d..0422ea0e5c7ace 100644
--- a/cli/js/jupyter_kernel.js
+++ b/cli/js/jupyter_kernel.js
@@ -333,12 +333,25 @@ async function recvMultipart(conn) {
 
 // --- Per-channel servers -------------------------------------------------------
 
+/**
+ * Build the Deno.listen options for one Jupyter channel. A `transport: "ipc"`
+ * connection file points `ip` at a socket path prefix (e.g. `/tmp/.../deno-ipc`)
+ * and the kernel listens on `${ip}-${port}` per the Jupyter wire-protocol
+ * convention. Otherwise we listen on the supplied TCP host/port.
+ */
+function listenOptsForChannel(transport, ip, port) {
+  if (transport === "ipc") {
+    return { transport: "unix", path: `${ip}-${port}` };
+  }
+  return { hostname: ip, port };
+}
+
 /**
  * REP socket server (heartbeat).
  * For each connected peer, echo back every received message.
  */
-async function runHeartbeat(port, ip) {
-  const listener = Deno.listen({ hostname: ip, port });
+async function runHeartbeat(port, ip, transport) {
+  const listener = Deno.listen(listenOptsForChannel(transport, ip, port));
   while (true) {
     const conn = await listener.accept();
     (async () => {
@@ -389,9 +402,10 @@ function makeQueue() {
  * every connected peer via `sendAll`).
  */
 class RouterSocket {
-  constructor(port, ip) {
+  constructor(port, ip, transport) {
     this.port = port;
     this.ip = ip;
+    this.transport = transport;
     this.incoming = makeQueue();
     this.peers = new Map(); // peerId (string) -> conn
     this._listen();
@@ -399,7 +413,9 @@ class RouterSocket {
 
   _listen() {
     (async () => {
-      const listener = Deno.listen({ hostname: this.ip, port: this.port });
+      const listener = Deno.listen(
+        listenOptsForChannel(this.transport, this.ip, this.port),
+      );
       while (true) {
         const conn = await listener.accept();
         this._handlePeer(conn);
@@ -468,16 +484,19 @@ class RouterSocket {
  * Sends the same frames to all connected subscribers.
  */
 class PubSocket {
-  constructor(port, ip) {
+  constructor(port, ip, transport) {
     this.port = port;
     this.ip = ip;
+    this.transport = transport;
     this.conns = new Set();
     this._listen();
   }
 
   _listen() {
     (async () => {
-      const listener = Deno.listen({ hostname: this.ip, port: this.port });
+      const listener = Deno.listen(
+        listenOptsForChannel(this.transport, this.ip, this.port),
+      );
       while (true) {
         const conn = await listener.accept();
         (async () => {
@@ -525,17 +544,25 @@ class PubSocket {
 
 async function startJupyterKernel() {
   const info = JSON.parse(op_jupyter_get_connection_info());
-  const { ip, key, hb_port, shell_port, control_port, stdin_port, iopub_port } =
-    info;
+  const {
+    ip,
+    key,
+    transport = "tcp",
+    hb_port,
+    shell_port,
+    control_port,
+    stdin_port,
+    iopub_port,
+  } = info;
   const session = crypto.randomUUID();
 
   // Start heartbeat (purely async, fire-and-forget)
-  runHeartbeat(hb_port, ip);
+  runHeartbeat(hb_port, ip, transport);
 
-  const shell = new RouterSocket(shell_port, ip);
-  const control = new RouterSocket(control_port, ip);
-  const iopub = new PubSocket(iopub_port, ip);
-  const stdin = new RouterSocket(stdin_port, ip);
+  const shell = new RouterSocket(shell_port, ip, transport);
+  const control = new RouterSocket(control_port, ip, transport);
+  const iopub = new PubSocket(iopub_port, ip, transport);
+  const stdin = new RouterSocket(stdin_port, ip, transport);
 
   let executionCount = 0;
   let currentParentHeader = {};

From cba1151ad8642ffe3cf1c99c3a6c63d70ce41632 Mon Sep 17 00:00:00 2001
From: tsushanth <78000697+tsushanth@users.noreply.github.com>
Date: Sat, 13 Jun 2026 15:25:49 -0700
Subject: [PATCH 4/4] fix(ext/node): make zlib writeSync _writeState argument
 optional (#35185)

---
 ext/node/ops/zlib/mod.rs     | 14 ++++++++++----
 tests/unit_node/zlib_test.ts | 26 ++++++++++++++++++++++++++
 2 files changed, 36 insertions(+), 4 deletions(-)

diff --git a/ext/node/ops/zlib/mod.rs b/ext/node/ops/zlib/mod.rs
index 51e321560e6b14..9f0e6754e363c6 100644
--- a/ext/node/ops/zlib/mod.rs
+++ b/ext/node/ops/zlib/mod.rs
@@ -434,7 +434,11 @@ impl Zlib {
     #[buffer] out: &mut [u8],
     #[smi] out_off: u32,
     #[smi] out_len: u32,
-    #[buffer] write_result: &mut [u32],
+    // Per-call result buffer added by #35043. Older callers (notably
+    // pngjs/sync-inflate) bound directly to `_handle.writeSync` and never
+    // pass it, so accept None and skip the avail_out/avail_in write-back
+    // when one isn't provided (#35185).
+    #[buffer] write_result: Option<&mut [u32]>,
   ) -> Result<(), ZlibError> {
     let err_info = {
       let mut zlib = self.inner.borrow_mut();
@@ -444,9 +448,11 @@ impl Zlib {
       zlib.start_write(input, in_off, in_len, out, out_off, out_len, flush)?;
       zlib.do_write(flush)?;
 
-      if write_result.len() >= 2 {
-        write_result[0] = zlib.strm.avail_out;
-        write_result[1] = zlib.strm.avail_in;
+      if let Some(write_result) = write_result {
+        if write_result.len() >= 2 {
+          write_result[0] = zlib.strm.avail_out;
+          write_result[1] = zlib.strm.avail_in;
+        }
       }
       zlib.get_error_info()
     };
diff --git a/tests/unit_node/zlib_test.ts b/tests/unit_node/zlib_test.ts
index 7fe8053daec2a3..495875f78ec917 100644
--- a/tests/unit_node/zlib_test.ts
+++ b/tests/unit_node/zlib_test.ts
@@ -17,6 +17,7 @@ import {
   createDeflate,
   createGunzip,
   createGzip,
+  createInflate,
   createZstdCompress,
   createZstdDecompress,
   deflateSync,
@@ -460,3 +461,28 @@ Deno.test("zlib write does not write through a detached _writeState", () => {
     assertEquals(state.buffer.byteLength, 0);
   }
 });
+
+// pngjs's `sync-inflate.js` binds directly to `inflate._handle.writeSync` and
+// invokes it with seven arguments (no per-call `_writeState`), relying on the
+// pre-#35043 contract where the result buffer was registered at init time. The
+// per-call argument is now optional so that signature keeps working (#35185).
+Deno.test("zlib writeSync accepts the pre-#35043 seven-argument signature", () => {
+  const chunk = Buffer.from([
+    0x78, 0x9c, 0x03, 0x00, 0x00, 0x00, 0x00, 0x01,
+  ]);
+  const out = Buffer.allocUnsafe(1024);
+
+  // deno-lint-ignore no-explicit-any
+  const inflate = createInflate() as any;
+
+  // Must not throw `expected typed ArrayBufferView` for the missing 8th arg.
+  inflate._handle.writeSync(
+    constants.Z_FINISH,
+    chunk,
+    0,
+    chunk.length,
+    out,
+    0,
+    out.length,
+  );
+});