v8.4.0

[8.4.0] - 2026-06-24

Added

• Add nylas.transactionalSend.send() for domain-based transactional email send (POST /v3/domains/{domainName}/messages/send) (#747)
• Add optional calendarId and eventId fields to the Notetaker model (#748)

Fixed

• Add message.created.truncated and message.updated.truncated to WebhookTriggers (#748)
• Add missing webhook trigger types (message.deleted, message.created.cleaned, grant.imap_sync_completed, Notetaker triggers, Agent Account and transactional deliverability triggers, and legacy tracking triggers) (#750)

Changed

• Bump dependencies to reasonable latest versions (#749)

References

• Transactional send API — PR #747 / TT-4384
• Truncated webhook triggers + Notetaker fields — PR #748 / TW-5661 / closes #723, #682
• Dependency bump — PR #749 / TW-5663
• Missing webhook triggers — PR #750 / TW-5668 / closes #746 (thanks @Kile)

Jira: TW-5703
Release PR: #751