---
title: Elastic APM Python Agent breaking changes
description: Before you upgrade, carefully review the Elastic APM RPython Agent breaking changes and take the necessary steps to mitigate any issues. Release date:...
url: https://www.elastic.co/elastic/docs-builder/docs/3028/release-notes/apm/agents/python/breaking-changes
products:
  - APM Agent
  - APM Python Agent
applies_to:
  - Serverless Observability projects: Generally available
  - Elastic Stack: Generally available
  - Application Performance Monitoring Agent for Python: Generally available
---

# Elastic APM Python Agent breaking changes
Before you upgrade, carefully review the Elastic APM RPython Agent breaking changes and take the necessary steps to mitigate any issues.

## 6.0.0

**Release date:** February 1, 2021
- Python 2.7 and 3.5 support has been deprecated. The Python agent now requires Python 3.6+. For more information, check [#1021](https://github.com/elastic/apm-agent-python/pull/1021).
- No longer collecting body for `elasticsearch-py` update and `delete_by_query`. For more information, check [#1013](https://github.com/elastic/apm-agent-python/pull/1013).
- Align `sanitize_field_names` config with the [cross-agent spec](https://github.com/elastic/apm/blob/3fa78e2a1eeea81c73c2e16e96dbf6b2e79f3c64/specs/agents/sanitization.md). If you are using a non-default `sanitize_field_names`, surrounding each of your entries with stars (e.g. `*secret*`) will retain the old behavior. For more information, check [#982](https://github.com/elastic/apm-agent-python/pull/982).
- Remove credit card sanitization for field values. This improves performance, and the security value of this check was dubious anyway. For more information, check [#982](https://github.com/elastic/apm-agent-python/pull/982).
- Remove HTTP querystring sanitization. This improves performance, and is meant to standardize behavior across the agents, as defined in [#334](https://github.com/elastic/apm/pull/334). For more information, check [#982](https://github.com/elastic/apm-agent-python/pull/982).
- Remove `elasticapm.tag()` (deprecated since 5.0.0). For more information, check [#1034](https://github.com/elastic/apm-agent-python/pull/1034).