Skip to content

[workers] Update release notes: V8 14.2, JSON optimization, WebSocket message size limit #26215

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom
Merged
merged 2 commits into from
Nov 3, 2025
Merged

[workers] Update release notes: V8 14.2, JSON optimization, WebSocket message size limit #26215

merged 2 commits into from
Nov 3, 2025

Conversation

@harrishancock
Copy link
Contributor

@harrishancock harrishancock commented Oct 31, 2025 •
edited
Loading

Summary

This brings the Workers external release notes up to date with some recent changes:

  • V8 14.2
  • A JSON.parse() optimization which we blogged about
  • The WebSocket message size limit increase from 1 MiB to 32 MiB

The WebSocket message size limit, while implemented in the Workers platform, appears only to have been documented in the Durable Objects section. So, I updated the DO documentation, too.

Documentation checklist

@harrishancock
[workers] Update release notes with recent changes
8a6f24c 
- V8 update to 14.2
- JSON.parse() optimization
- Console warnings now also go to tail Workers
@github-actions github-actions bot added October 2025 product:durable-objects Durable Objects: https://developers.cloudflare.com/workers/learning/using-durable-objects/ labels Oct 31, 2025
@github-actions
Copy link
Contributor

github-actions bot commented Oct 31, 2025 •
edited
Loading

This pull request requires reviews from CODEOWNERS as it changes files that match the following patterns:

Pattern Owners
/src/content/changelog/ @cloudflare/pm-changelogs, @cloudflare/pcx-technical-writing
/src/content/docs/durable-objects/ @elithrar, @vy-ton, @joshthoward, @oxyjun, @harshil1712, @mikenomitch, @cloudflare/pcx-technical-writing, @cloudflare/workers-runtime-1
/src/content/release-notes/durable-objects.yaml @elithrar, @vy-ton, @joshthoward, @oxyjun, @cloudflare/pcx-technical-writing
/src/content/release-notes/workers.yaml @cloudflare/workers-docs, @GregBrimble, @WalshyDev, @aninibread, @cloudflare/deploy-config, @cloudflare/pcx-technical-writing, @irvinebroque, @mikenomitch

@github-actions
Copy link
Contributor

github-actions bot commented Oct 31, 2025 •
edited
Loading

Preview URL: https://6f4c87ce.preview.developers.cloudflare.com
Preview Branch URL: https://harris-workers-update-v8-14-2-and-websocket-message-size-limits.preview.developers.cloudflare.com

Files with changes (up to 15)

Original Link Updated Link
https://developers.cloudflare.com/changelog/2025-10-31-increased-websocket-message-size-limit/ https://harris-workers-update-v8-14-2-and-websocket-message-size-limits.preview.developers.cloudflare.com/changelog/2025-10-31-increased-websocket-message-size-limit/
https://developers.cloudflare.com/durable-objects/platform/limits/ https://harris-workers-update-v8-14-2-and-websocket-message-size-limits.preview.developers.cloudflare.com/durable-objects/platform/limits/

@harrishancock harrishancock force-pushed the harris/workers-update-v8-14.2-and-websocket-message-size-limits branch from 50ca648 to 1e1ec16 Compare October 31, 2025 13:48
@harrishancock harrishancock requested a review from a team as a code owner October 31, 2025 13:48
@harrishancock harrishancock force-pushed the harris/workers-update-v8-14.2-and-websocket-message-size-limits branch from 1e1ec16 to 1a9a512 Compare October 31, 2025 13:54
@harrishancock
[workers] Add new WebSocket message size limit
6f4c87c 
We updated this limit from 1 MiB to 32 MiB.
@harrishancock harrishancock force-pushed the harris/workers-update-v8-14.2-and-websocket-message-size-limits branch from 1a9a512 to 6f4c87c Compare October 31, 2025 14:32
@harrishancock harrishancock merged commit 475a515 into production Nov 3, 2025
8 checks passed
@harrishancock harrishancock deleted the harris/workers-update-v8-14.2-and-websocket-message-size-limits branch November 3, 2025 13:27
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Reviewers

@mikenomitch mikenomitch mikenomitch approved these changes

@vy-ton vy-ton vy-ton approved these changes

@GregBrimble GregBrimble Awaiting requested review from GregBrimble GregBrimble is a code owner

@WalshyDev WalshyDev Awaiting requested review from WalshyDev WalshyDev is a code owner

@aninibread aninibread Awaiting requested review from aninibread aninibread is a code owner

@irvinebroque irvinebroque Awaiting requested review from irvinebroque irvinebroque is a code owner

@elithrar elithrar Awaiting requested review from elithrar elithrar is a code owner

@joshthoward joshthoward Awaiting requested review from joshthoward joshthoward is a code owner

@Oxyjun Oxyjun Awaiting requested review from Oxyjun Oxyjun is a code owner

@harshil1712 harshil1712 Awaiting requested review from harshil1712 harshil1712 is a code owner

Assignees

@elithrar elithrar

@irvinebroque irvinebroque

@mikenomitch mikenomitch

@GregBrimble GregBrimble

@WalshyDev WalshyDev

@joshthoward joshthoward

@vy-ton vy-ton

@harshil1712 harshil1712

@aninibread aninibread

@Oxyjun Oxyjun

Labels

October 2025 product:durable-objects Durable Objects: https://developers.cloudflare.com/workers/learning/using-durable-objects/ size/s

Projects

None yet

Milestone

No milestone

Development

Successfully merging this pull request may close these issues.