> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt
> Use this file to discover all available pages before exploring further.

# Tracer event producer boundary

> The standalone Tracer service and the Tracer component embedded in Midaz have different event contracts.

<Badge stroke icon="calendar-days" iconType="regular">August 27, 2026</Badge> <Badge stroke icon="file-code" iconType="regular">Documentation correction</Badge> <Badge color="purple" size="lg" stroke icon="eye" iconType="regular">Review recommended</Badge>

## Affects

***

Teams that use Tracer or Midaz event-streaming documentation.

## What changed

***

The archived standalone Tracer service has no external streaming transport. The Tracer component embedded in Midaz emits 12 CloudEvents, with its own manifest, routing, tenant semantics, triggers, and payload fields. The reference now distinguishes these products. This corrects documentation of implemented contracts; it does not announce a runtime release.

## Impact

***

**Classification: Review recommended.**

## What you need to do

***

<Steps>
  <Step>Identify which Tracer deployment you operate before subscribing to or routing its events.</Step>
</Steps>

### Deadline

Review before the next Tracer or Midaz event-integration deployment.