From 6f35d5ae30bacb21641c525987b8df96c3a2ef95 Mon Sep 17 00:00:00 2001
From: Benedikt Reinartz <filmor@gmail.com>
Date: Sun, 13 Oct 2024 09:23:08 +0200
Subject: [PATCH] Add UPGRADE comment regarding rustler_sys removal

---
 UPGRADE.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/UPGRADE.md b/UPGRADE.md
index 2119ab3a..f5209ec0 100644
--- a/UPGRADE.md
+++ b/UPGRADE.md
@@ -2,6 +2,13 @@
 
 This document is intended to simplify upgrading to newer versions by extending the changelog.
 
+## 0.34 -> 0.35
+
+`rustler_sys` as a standalone library has been replaced by an embedded
+`rustler::sys` submodule. Due to how the `rustler_/::sys` initialisation works,
+it is not possible to use the new `rustler` in conjunction with `rustler_sys`. A
+simple textual replacement is enough, though.
+
 ## 0.33 -> 0.34
 
 1. NIF implementations are now discovered automatically, the respective argument