From ac52cb8739ecbd667b6a71a4decdc125bd3b581c Mon Sep 17 00:00:00 2001
From: Rodrigo Primo <rodrigosprimo@gmail.com>
Date: Wed, 27 May 2026 14:15:39 +0000
Subject: [PATCH] Add Section 4.10 entry to the PER-CS 2.0 to 3.0 migration
 guide

PER-CS 3.0 added a new Section 4.10 ("Interface and abstract
properties") covering abstract properties in interfaces and
abstract classes. It was introduced by #108. The migration guide
had no mention of Section 4.10.

This commit adds a new entry matching the format used for other
wholly-new sections in the migration guide (e.g., Section 10,
Section 11, Section 12 in migration-2.0.md): a brief introduction
pointing readers at the spec, followed by example code blocks.
---
 migration-3.0.md | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/migration-3.0.md b/migration-3.0.md
index 409a868..2968e4c 100644
--- a/migration-3.0.md
+++ b/migration-3.0.md
@@ -129,6 +129,30 @@ class Example
 }
 ```
 
+## [Section 4.10 - Interface and abstract properties](https://www.php-fig.org/per/coding-style/#410-interface-and-abstract-properties)
+
+This is a new section about interface and abstract properties, as per the link above. Examples follow:
+
+```php
+abstract class Example {
+    abstract public string $name {
+        get => ucfirst($this->name);
+        set;
+    }
+}
+```
+
+```php
+interface Example
+{
+    public string $readable { get; }
+
+    public string $writeable { set; }
+
+    public string $both { get; set; }
+}
+```
+
 ## [Section 5.2 - Switch, Case, and Match](https://www.php-fig.org/per/coding-style/#52-switch-case-match)
 
 When breaking a series of boolean operators across multiple lines, the operator MUST be at the beginning of each line, not the end of each line.