Skip to content

Draft changelog: user-context auth and faster streaming #379

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

Open
mintlify wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Draft changelog: user-context auth and faster streaming #379

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
14 changes: 14 additions & 0 deletions changelog.mdx
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -7,6 +7,20 @@ keywords: ["changelog", "API updates", "release notes", "what's new", "API chang

To subscribe to updates, please [**“Turn on notifications”**](https://help.x.com/en/managing-your-account/notifications-on-mobile-devices#:~:text=In%20the%20top%20menu,%20you,you%20would%20like%20to%20receive) for [**@API**](https://x.com/api). You can also follow this changelog in your feed reader via the [**RSS feed**](https://docs.x.com/changelog/rss.xml).

<Update label="Sep 4, 2026" description="X API v2">
### User-context authentication for webhook and X Activity API management

Webhook management endpoints ([`GET /2/webhooks`](/x-api/webhooks/get-webhook), [`POST /2/webhooks`](/x-api/webhooks/create-webhook), [`DELETE /2/webhooks/{webhook_id}`](/x-api/webhooks/delete-webhook), and [`PUT /2/webhooks/{webhook_id}`](/x-api/webhooks/validate-webhook)) now accept **OAuth 2.0 user-context** authentication, and `GET /2/webhooks` additionally accepts OAuth 1.0a.

The [X Activity API](/x-api/activity/introduction) subscription endpoints [`PUT /2/activity/subscriptions/{subscription_id}`](/x-api/activity/update-x-activity-subscription) and [`DELETE /2/activity/subscriptions/{subscription_id}`](/x-api/activity/deletes-x-activity-subscription) now accept **OAuth 2.0 user-context** and **OAuth 1.0a** authentication in addition to app-only Bearer Tokens.

You can now manage webhooks and Activity API subscriptions with the same user-context credentials your app already uses, instead of switching to an app-only Bearer Token.

### Faster streaming delivery

We improved delivery latency on the hydrated streaming endpoints, including [Filtered Stream](/x-api/posts/filtered-stream/introduction) and the volume streams. P99 latency is now **approximately 4-5 seconds**, down from ~6-7 seconds. No changes are required on your side. See [consuming streaming data](/x-api/fundamentals/consuming-streaming-data) for delivery guarantees, or [Powerstream](/x-api/powerstream/introduction) if you need the lowest possible latency.
</Update>

<Update label="Sep 1, 2026" description="X API v2">
### Media upload and Post-create size and duration limits

Expand Down