# Apache Airflow 2.1.2 — Release & Upgrade Intelligence
- **Product:** Apache Airflow (https://airflow.apache.org)
- **Version:** 2.1.2
- **Released:** Jul 14, 2021
- **Impact Score:** 5/10
- **Breaking Changes:** Not verified
- **Canonical Analysis:** https://changelogs.us/airflow/updates/2.1.2/

## Executive Summary (TL;DR)
Apache Airflow 2.1.2. Source highlight: Only allow the webserver to request from the worker log server (#16754)

## New Features
- Add Python 3.9 support (#15515)

## Bug Fixes
- Only allow the webserver to request from the worker log server (#16754)
- Fix "Invalid JSON configuration, must be a dict" bug (#16648)
- Fix ``CeleryKubernetesExecutor`` (#16700)
- Mask value if the key is ``token`` (#16474)
- Fix impersonation issue with ``LocalTaskJob`` (#16852)