Changelog

What's new

New features, improvements, and fixes shipped to Sendinel.

March 2026

Visual Workflow Builder

Feature

Build branching email automations with a drag-drop canvas. Add conditions (opened, clicked, custom events) that fork subscribers down different paths.

Embeddable Signup Forms

Feature

Create lead capture forms, customize fields, and embed them on your website. Auto-tag subscribers and trigger double opt-in.

Revenue Attribution

Feature

Track conversions from email campaigns with the new POST /api/v1/conversion endpoint. See total revenue, per-email ROI, and top campaigns on your dashboard.

Conditional Email Content

Feature

Show different content to different subscribers. Use IF/ELSE blocks based on lifecycle stage, engagement score, tags, or custom properties.

Recurring Broadcasts

Feature

Set up weekly or monthly newsletters that auto-send on schedule. Configure frequency, day, and time with a visual schedule picker.

Advanced Merge Tags

Feature

14 template variables with fallback syntax: {{first_name|there}}, {{site_name}}, {{current_year}}, and more. Insert via dropdown in the visual editor.

Custom Engagement Scoring

Feature

Configure scoring weights, caps, recency boosts, and lifecycle thresholds per project. Fine-tune how subscriber engagement is calculated.

Campaign PDF Reports

Feature

Download self-contained HTML reports for any campaign with KPIs, engagement funnels, step performance, and daily activity charts.

Outbound Webhooks

Feature

Subscribe your own endpoints to Sendinel events. HMAC-signed payloads, test pings, and delivery logs with retry.

Timezone-Aware Scheduling

Feature

Set your org timezone, schedule broadcasts in local time, and optionally send at the right time for each subscriber's timezone.

Command Palette

DX

Press Cmd+K to search commands, navigate pages, and launch actions. 13 commands across navigation, actions, and AI.

Email Verification

Feature

Validates emails on import and creation. Catches disposable domains, typos (with suggestions), and role-based addresses.

Competitor Import

Feature

Auto-detect Mailchimp, ConvertKit, and ActiveCampaign CSV exports. Maps columns, scales scores, and preserves tags automatically.

Template Versioning

Feature

Every template save creates a version snapshot. Browse history and restore any previous version with one click.

Interactive Onboarding

DX

5-step guided tour for new users covering navigation, metrics, AI assistant, campaigns, and subscribers.

Subscriber Notes & Custom Events

Feature

Add internal notes to subscribers. Log calls, meetings, purchases, and custom events in a unified timeline alongside email activity.

Billing History

Feature

View past invoices with status badges, download PDFs, and manage your subscription from the billing tab.

Static Subscriber Lists

Feature

Create fixed subscriber lists alongside dynamic segments. Add subscribers manually or in bulk from the Subscribers page.

Docker Local Dev

Infrastructure

Full Docker Compose setup with Postgres, PostgREST, Mailpit, and the dashboard. One command to spin up the stack.

454 Unit Tests + Playwright E2E

Infrastructure

89 new unit tests covering email validation, merge tags, conditional content, recurrence, and webhooks. Playwright framework with 8 smoke tests.