> For clean Markdown of any page, append .md to the page URL.
> For a complete documentation index, see https://mezmo.ferndocs.com/llms.txt.
> For AI client integration (Claude Code, Cursor, etc.), connect to the MCP server at https://mezmo.ferndocs.com/_mcp/server.

# Mezmo Release Notes for June 2025

## Features

### Datadog Cost Reduction Flow

When creating a new Pipeline, you now have the option to use [Mezmo Flow](https://docs.mezmo.com/2.8/telemetry-pipelines/about-mezmo-flow) flow to build a specialized pipeline to reduce your Datadog costs. Check out the [Datadog Agent](https://docs.mezmo.com/2.8/telemetry-pipelines/mezmo-datadog-source-source) topic for more information.

## Bug Fixes

**LOG-20150** \[kafka-bridge] does not scale up well

**LOG-21907** \[pipeline-service] handle migrations when table exists but no migration happened

**LOG-21910** Update /v3/pipelines PUT/POST endpoints to not allow extra fields

**LOG-21925** The color filled data rows have the color shifting with pages

**OG-20324** Times in pipeline restoration UI in the wrong order

**LOG-20409** Exported lines ingested with syslog missing keys for null/undefined field, with quickwit

**LOG-21721** "map fields" processor on a pure string message replaces the message

**LOG-21739** \[vector] aggregate\_distributed lag under high throughput

**LOG-21935** Fix alert expectation in revision get spec

**LOG-21714** \[vector] Aggregate (aggregate\_v2) processor "stuck" when consumer lag builds

**LOG-21789** Incorrect log lines showing up in different views

**LOG-21790** Admin users in LA Only accounts can still see the Pipeline Restoration link

**LOG-21839** Investigate and fix 'TypeError: next is not a function' in billing endpoints

**LOG-21851** Investigate and resolve HTTP 400 error when posting absence alert cache

**LOG-21889** \[otel] tags/attributes are not being sent in the data payloads to otel