---
title: "Feature: #88799 - Introduced PSR-3 compatible Logging API"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:feature-88799"
source: "Changelog/10.0/Feature-88799-IntroducedPSR-3CompatibleLoggingAPI.rst"
modified: "2026-09-15T10:46:36+00:00"
---

# Feature: #88799 - Introduced PSR-3 compatible Logging API

See [forge#88799](https://forge.typo3.org/issues/88799)

## Description

The existing Logging API evolved pretty similar to the later established PSR-3 logging standard.
There was one key difference between the standard and the TYPO3 implementation though:
The log levels were represented by numbers in TYPO3 whereas PSR-3 requires the string representation.

TYPO3 therefore finally adapted to the standard and opens up for better integration with other libraries
also following the standard.

## Impact

The adaption was not possible without a few breaking changes to the code base.
Luckily no configuration changes are necessary, hence integrators are not affected by those.