From ba996f7ae9793c8e2234bb7202c76646f3540755 Mon Sep 17 00:00:00 2001
From: Peter Kokot <peterkokot@gmail.com>
Date: Tue, 10 Feb 2026 16:21:31 +0100
Subject: [PATCH] Add note about updated PHP version

[skip ci]
---
 UPGRADING.INTERNALS | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/UPGRADING.INTERNALS b/UPGRADING.INTERNALS
index c4ad30b9bad..5b3b04cd9ba 100644
--- a/UPGRADING.INTERNALS
+++ b/UPGRADING.INTERNALS
@@ -75,6 +75,9 @@ PHP 8.6 INTERNALS UPGRADE NOTES
 2. Build system changes
 ========================
 
+- Abstract:
+  . Minimum required PHP version found on the host system for running scripts
+    like build/gen_stub.php during development has been updated from 7.4 to 8.1.
   . build/gen_stub.php may now generate a _decl.h file in addition to
     the _arginfo.h file, if the stub declares enums and is annotated with
     @generate-c-enums. For each enum the file will contain a C enum. Enum