---
title: "Deprecation: #76104 - Deprecated single slash comments in TypoScript"
manual: "TYPO3 Core Changelog"
version: "main"
permalink: "https://docs.typo3.org/permalink/changelog:deprecation-76104"
source: "Changelog/8.2/Deprecation-76104-Deprecated-Single-Slash-Comments-In-TypoScript.rst"
typo3-version: "8.2"
typo3-major: 8
type: "deprecation"
issue: 76104
forge: "https://forge.typo3.org/issues/76104"
tags: ["TypoScript", "Frontend"]
rendered: "2026-09-19T12:12:50+00:00"
---

# Deprecation: #76104 - Deprecated single slash comments in TypoScript {#deprecation-76104}

See [forge#76104](https://forge.typo3.org/issues/76104)

## Description {#description}

Double slash one-line comments are standard in many languages.
Make them standard for TypoScript, too.

Define:

```
One-line comments must start with two forward slashes as
the first non-blank characters and should be followed by
a whitespace.

```

Deprecated:

```
/ Line comment headed by single slash

```

## Impact {#impact}

The TypoScript developer receives a deprecation warning
with line number.

## Affected Installations {#affected-installations}

Installations using a single slash to indicate a comment.

## Migration {#migration}

Use double slashes (//) or hash (#) for comments in Typoscript.