Annotating CPU profiler samples with embedder values

Hi folks, Following up to note that I added a second patchset addressing Leszek's review comments

Branch cut V8 15.2 on 2026-07-28

Hi, We've officially branched for Chrome version 152. V8 branch: refs/branch-heads/15.2 V8

[V8][TurboFan][Maglev] Sponsor request for dictionary super-load receiver fix

Hi Jakob, Thanks for the clarification. I tried again with my regular Gmail account, and the upload

Proposal: Remove 9 unused DeoptimizeReason enum values (verified dead via full history search)

Hi, > I wanted to ask whether this kind of cleanup is even of interest to the team Sure, please

TC-39 Error code property proposal

Hey all, Just a heads up about https://github.com/tc39/proposal-error-code-property ... It's a

(X64+CET enabled) WASM jump table slot overflow on far jump fallback

Actually, I didn't want to go through the process of https://v8.dev/docs/contribute. Reading CLA,

(X64+CET enable) wasm jump table slot overflow on far jump

On OpenBSD amd64 current, using Node 24.18 and Yarn (4.17). Randomly the command 'yarn install

Branch cut V8 15.1 on 2026-06-29

Hi, We've officially branched for Chrome version 151. V8 branch: refs/branch-heads/15.1 V8

Replace base::Memset's hand-written loop with std::fill_n?

Hi Jakob, Thanks for the reply. I've uploaded the change to Gerrit. https://chromium-review.

Is there a plan to optimize async generators?

Hi, This is on our radar by optimising the lazy-collections jetstream workload which covers some

I get a warning when Irun 'git cl upload'

It may caused by the VPN that you were using are dirty in their IP address. Consider using a clearer

[snapshot] Proposed fix for deferred off-heap TypedArray snapshot failure

Hi V8 folks, I found a snapshot deserialization failure involving deferred objects and off-heap

Lang design: building no-prototype arrays

Well you sent me down quite a rabbit hole, but yes I was able to confirm what you said -- that

Branch cut V8 15.0 on 2026-06-01

Hi, We've officially branched to be prepared for the upcoming Chromium version 150. The base of

Arrow function in ScriptCompiler::CompileFunction source argument

Hi all, In C++ code we use ScriptCompiler::CompileFunction() member function to compile JS function

Branch cut V8 14.9 on 2026-05-04

Hi, we have officially branched to be prepared for the upcoming Chrome version 149. The base of the

[Design/Windows] Scripting API to opt into ETW tracing integration for a specific Isolate

A little thing to allow an embedder to integrate with an ETW tracing session for a specific Isolate,

Method on Isolate to check for interrupts

I don't think that's been observed, so I guess my coworker just wrote this part of our code

GDB & LLDB plugins for v8 via debug_helper

Hi Leszek, Thanks for the feedback, yes I agree they are complementary - with gdbjit integration

Windows crash: [mutex.cc : 2600] RAW: Check waitp->thread->waitp == nullptr failed: waiting when shouldn't be

Claude found the problem. Attached the patch that fixed the occasional crash. Two related fixes for

Failures in "gclient sync" due to HTTP 429 (Too Many Requests)?

This appears to have been resolved. Thank you all! On Tuesday, April 7, 2026 at 10:57:39 AM UTC-4 cbr

Does V8 now allow C++20?

On Fri, Apr 10, 2026 at 2:18 AM Jakob Kummerow <jkum...@chromium.org> wrote: I don't

Is external contribution possible to a minor Security Report?

The following ran expectedly: https://issues.chromium.org/issues/42201901 https://issues.chromium.org

Naming conflicts when building v8_monolith

I am building a static monolith of v8 14.6 with the following config: gn_args = { is_debug: false,

Cannot build static libv8 with partition_alloc enabled

I started from the working homebrew recipe for v8 14.6, but after adding : v8_monolithic: true,

Branch cut V8 14.8 on 2026-04-02

Hi, We've officially branched to be prepared for the upcoming Chromium version 148. The base of

[Proposal] Let GC learn business context via SPI: a hybrid Arena + GC memory model for V8

One more thought I want to add, not to argue, but because I think it's worth considering together

Branch cut V8 14.7 on 2026-03-09

Correction: the version is 14.7.173. Sorry for the confusion. On Mon, Mar 9, 2026 at 3:26 PM Jakob

Build times for V8

Hi Erik I already lgtm'd the cl but for the record: While jumbo support was dropped, we're

Branch cut V8 14.6 on 2026-02-09

Hi, We've officially branched to be prepared for the upcoming Chromium version 146. The base of