Draft changelog: is_moderator on broadcast.chat events

[mintlify]

Summary

Adds a changelog entry for the new is_moderator boolean on broadcast.chat X Activity API events.

Changes

• New Sep 22, 2026 entry under X API v2 in changelog.mdx linking to the updated broadcast.chat payload schema

Context

Only one product-facing PR merged since the last changelog entry (Sep 21): #445, which documented the new is_moderator field on the broadcast.chat XAA event payload.

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Project	Status	Preview	Updated
x-corp	🟢 Ready	View Preview	Sep 22, 2026, 8:58 PM

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