---
title: "Changelog"
url: "https://letterstack.dev/changelog/"
description: "LetterStack changelog. See what shipped and when."
---

Product

# Changelog

New features, improvements, and fixes for LetterStack.

## June 1, 2026

## Added

*   SMTP provider presets in the dashboard - select Gmail, Amazon SES, Zoho Mail, Mailgun, SendGrid, Brevo, or Postmark to auto-fill host, port, and encryption
*   Region and data-center sub-selects for Amazon SES and Zoho Mail
*   Inline links to each provider’s SMTP setup documentation

## May 30, 2026

## Added

*   Public REST API at `/v1/emails` and `/v1/templates` with API key authentication
*   Dashboard for projects, SMTP configuration, Handlebars templates, API keys, and send logs
*   Transactional email sending through your own SMTP server with queued delivery and retries
*   Paid plans with Polar billing integration