---
title: "PHP: PHP 8.5.9 Release Announcement"
url: https://daily.dev/posts/php-php-8-5-9-release-announcement-wtay3letn
source_url: http://php.net/releases/8_5_9.php
type: article
source: "PHP"
published: 2026-07-31T03:27:51.827Z
updated: 2026-07-31T16:17:28.728Z
tags: ["security", "php"]
reading_time: 1
upvotes: 20
comments: 2
language: en
---

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# PHP: PHP 8.5.9 Release Announcement

**[PHP](https://daily.dev/sources/php)** · 1 min read · 20 upvotes · 2 comments

## Summary

The PHP development team has released PHP 8.5.9, a security release. All PHP 8.5 users are urged to upgrade immediately. Source downloads and Windows binaries are available on the official PHP downloads page, with the full list of changes in the ChangeLog.

## Full article

daily.dev links to this article rather than hosting it. Read it at the original source: <http://php.net/releases/8_5_9.php>

## Community discussion

Top comments from developers on daily.dev.

**@gaburayondev** · 2 upvotes

> Worth flagging what's actually in this one, since "security release" alone doesn't tell you the urgency — this patches a pgsql SQL injection via backslash breakouts and a stack-based out-of-bounds write in bcmath. If you're on pgsql for your DB layer, this isn't a "get to it eventually" update. 8.2.33 got the same synchronized patch set too, for anyone still on that branch ahead of its EOL

**@michalfilo** · 0 upvotes

> great we will see such updates even more often with AI revealing security issues

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---

Tags: [#security](https://daily.dev/tags/security), [#php](https://daily.dev/tags/php)

[View this post on daily.dev](https://daily.dev/posts/php-php-8-5-9-release-announcement-wtay3letn)