---
title: Differences Between PHP Versions 8.1, 8.2 and 8.3
url: "https://pressable.com/knowledgebase/differences-between-php-versions/"
published: 2021-11-24
modified: 2026-02-13
author: Wayne McWilliams
---

With Pressable, all sites can now [**upgrade PHP versions**](https://pressable.com/knowledgebase/how-to-change-your-php-version/) to 8.1, 8.2, or 8.3 with just one click in the MyPressable Control Panel.

To change your PHP version:

- Log in to MyPressable Control Panel
- Select a site
- Under the **Site** **Overview** section, switch the **PHP Version** under Site Information.

![](https://i0.wp.com/pressable.com/wp-content/uploads/2021/11/php-version-change.gif?resize=1266%2C712&ssl=1)To learn more about PHP limitations on Pressable, including values such as **max\_execution\_time, memory\_limit, and upload\_max\_filesize**, you can read our **[PHP Info & Limitations](https://pressable.com/knowledgebase/php-info-limitations-pressable/)** article.

You can also **[learn more about our Service And Platform Considerations here](https://pressable.com/knowledgebase/service-platform-considerations/).**

**We’ve outlined some information and the improvements between the three available PHP versions below:**

## **PHP 8.1** *Released: November 25th, 2021*

PHP 8.1 is a major update of the PHP language that brings better performance, better syntax, and improved type safety. It also contains new features and optimization improvements.

New features include:

- Enumerations
- Read-only properties
- First-class callable syntax
- Initializer updates
- Fibers
- Intersection types
- Performance improvements
- New classes, interfaces, and functions

## **PHP 8.2**

*Released: December 8, 2022*

PHP 8.2 is a major update of the PHP language that contains many new features, as well as performance improvements and more.

New features include:

- Read-only classes
- Disjunctive Normal Form (DNF) Types
- Allow `null`, `false`, and `true` as stand-alone types
- New “Random” extension
- Constants in traits
- Deprecate dynamic properties
- New Classes, Interfaces, and Functions

## **PHP 8.3** *Released: November 23, 2023*

PHP 8.3 is a major update of the PHP language that contains many new features, as well as performance improvements and more.

New features include:

- Typed Class Constants
- Dynamic class constant and Enum member fetch support
- `json_validate()` function
- Addition of `mb_str_pad()`
- Addition of `#[\Override]`attribute
- Random extension additions