Transactional send API: a new nylas.transactionalSend resource adds send() for domain-based transactional email against POST /v3/domains/{domainName}/messages/send. Use it to send transactional messages from a verified domain.
calendarId and eventId on Notetaker: the Notetaker model now exposes optional calendarId and eventId fields, so you can associate a notetaker session with the calendar and event it was created for.
Truncated message webhook triggers: message.created.truncated and message.updated.truncated are now part of the WebhookTriggers enum, so you can subscribe to truncated message notifications with full type support.
Missing webhook trigger types: the WebhookTriggers enum now includes message.deleted, message.created.cleaned, grant.imap_sync_completed, the Notetaker triggers, the Agent Account and transactional deliverability triggers, and the legacy tracking triggers.