What's new in April 2026

Separate Audience Tabs For Lists And Segments With Live Segment Preview

Lists and Segments now have their own tabs in Audience, next to Contacts, Topics and Properties.

All five tabs share the same filters, table and empty states. Active filters show as chips that can be cleared, the number cards at the top filter by status, and a contact opens in a side panel, so editing it doesn't lose your place in the list. The contacts table has new Topics, Lists and Segments columns that filter the list when clicked, shows 25, 50, 100 or 150 contacts per page, and an empty tab now says whether nothing exists yet or nothing matched the filters.

The segment builder now shows the matching contacts and their count while the conditions are being written. It used to show them only after “Save & preview”.

Activity Log On The Contact Detail Page

Each contact's page now has an activity log recording when the contact was created and every change to its lists, topics, properties, email address and status.

Names are saved as they were at the time, so the log still shows a list or topic by name after it is deleted.

Inline Editing For Contacts, Topics And Property Fallback Values

An Edit contact panel on the contact's page now changes its email address, status, lists and topics in one place.

Topics now have an editable name, description and visibility. A topic's default subscription can't be changed after the topic is created, because contacts were already subscribed or not based on it. For properties, the fallback value can now be edited, with an input that matches the property's type.

Bulk Actions For Contacts, Lists, Segments, Topics And Properties

Selected contacts can now be deleted, subscribed, unsubscribed, or added to and removed from lists and topics all at once.

The actions match the selection. Subscribe and Unsubscribe are turned off when every selected contact already has that status, and the list and topic pickers show whether all, some or none of the contacts are in each one, so after filtering by a list the picker offers to remove the contacts from it instead of adding them again. Topics, properties, segments and lists can be deleted in bulk too.

List-Scoped Contact Exports With A Recent Exports Panel

Exporting contacts from inside a list now exports only that list, where it used to export your whole audience.

Large audiences now export without running out of memory. A Recent exports panel shows the last five exports from the past 24 hours and updates as each one finishes. The download link is sent only by email, never shown in the browser, and each user can start up to 20 exports an hour.

Purpose Field Separates Campaign Emails From Transactional Emails

Every email now has a purpose, so the Emails list shows only transactional emails and the campaign builder shows only campaign emails.

Campaign drafts used to appear among transactional emails. The purpose is set when an email is created and can't be changed later. Emails created through the API or MCP are always transactional, and those endpoints don't accept the field, so existing integrations work as before.

Default Bounce Domain Switch On Sending Domains

A verified sending domain can now be made the team's default bounce domain with a switch on the domain's page.

The switch stays off until the domain's CNAME record is verified, with the hint “Verify the CNAME record before enabling”, instead of failing after it is turned on.

Webhook Event Types Renamed From Engagament To Engagement

The six webhook engagement event types, published as engagament.*, are now spelled engagement.*.

The old spelling is still accepted everywhere, so webhooks subscribed under it keep working. Update any code that matches on the event name.

Webhooks API Accepts Fully-Prefixed Event Names On Create

Creating a webhook now accepts the full event names that the webhook response returns, such as message.delivery, as well as the short form delivery.

url is now the main field for the webhook address, and target is still accepted on update. A webhook subscribed to every event now returns event_types: null, the all-events form the API reference describes, instead of a list of every event.

Warning-Level Fields Removed From The Domain Verification Response

Four undocumented *_warning_level fields were removed from the domain verification response.

The API reference now describes the DMARC, SPF and DKIM fields the response already returned. DKIM, DMARC and SPF status stay null until a domain has been verified at least once, and cname_status is not_applicable for a sending domain at the root of your domain, which uses SPF instead of a CNAME record. Check any code that reads the removed fields.

Deferred Loading For Dashboard And Audience Panels

The dashboard and the Audience pages now open straight away and show placeholders while their slower panels load.

The three domain health panels on the dashboard now load together instead of separately. When a filter changes, the Audience table stays on screen, dimmed, until the new results arrive, so the page doesn't jump and selected rows stay selected.

App Typefaces, Colors And Corners Updated To The Lettr Brand

The app now uses the Lettr brand's typefaces and pink, square corners throughout, and an off-white background in light mode with near-black in dark mode.

Page content now sits in a centred column, so tables no longer stretch across the full width of a very large monitor.