New

Received messages now include extracted sign-up codes and links, and a new endpoint waits for an incoming email to arrive before responding.
Refused API requests are now recorded in your workspace log, so the Logs page and GET /v1/logs show failed requests alongside changes.
When approving a connected app, you can now choose Send and read instead of Full access, limiting what the app can do.
A person signed in with no workspace can now reach the Delete account page from the onboarding screen.
Dashboard pages now show each workspace role only the actions that role can perform, with a note about who to ask for the rest.

Improved

Scheduled sends now use the display name written in the from field, instead of falling back to the address alone.
Reply-all on a message you sent now keeps the addresses you added in cc instead of replacing them.
A reply naming a sent message by the Message-ID recipients see now correctly joins its thread instead of starting a new one.
Filter dropdowns on phone screens now show their full text instead of being cut off, and long chosen options fit properly.
The outbound content rules no longer refuse ordinary transactional mail such as booking confirmations or invoices mentioning wire transfer.

A test key can no longer change, send or delete a draft created with a live key.
A draft sent as an agent whose custom domain lapsed now returns a clear error and stays sendable, instead of being marked permanently failed.
The dashboard Get a reply button no longer has its message refused as cold outreach when sending to the test address.