# Apache Airflow 2.5.1 — Release & Upgrade Intelligence
- **Product:** Apache Airflow (https://airflow.apache.org)
- **Version:** 2.5.1
- **Released:** Jan 20, 2023
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/airflow/updates/2.5.1/

## Executive Summary (TL;DR)
Apache Airflow 2.5.1. Source highlight: Fix masking of non-sensitive environment variables (#28802)

## New Features
- Add automated version replacement in example dag indexes (#28090)
- Add doc-strings and small improvement to email util (#28634)
- navbar, cap dropdown size, and add scroll bar (#28561)
- Add retry to ``purge_inactive_dag_warnings`` (#28481)
- Add AIRFLOW_PROJ_DIR to docker-compose example (#28517)
- Remove outdated Optional Provider Feature outdated documentation (#28506)

## Improvements
- Slightly improve description of Dynamic DAG generation preamble (#28650)

## Bug Fixes
- Fix masking of non-sensitive environment variables (#28802)
- Remove swagger-ui extra from connexion and install ``swagger-ui-dist`` via npm package (#28788)
- Fix ``UIAlert`` should_show when ``AUTH_ROLE_PUBLIC`` set (#28781)
- Only patch single label when adopting pod (#28776)
- Update CSRF token to expire with session (#28730)
- Fix "airflow tasks render" cli command for mapped task instances (#28698)