diff --git a/CHANGELOG.md b/CHANGELOG.md
index 16922803c..be86348b8 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,10 @@ This project adheres to [Semantic Versioning], with the exception that minor rel
 
 ## [Unreleased]
 
+### Changed
+
+- 🔥 Drop support for x86 macOS systems ([#421]) ([**@denialhaag**])
+
 ## [2.3.0] - 2025-07-29
 
 _If you are upgrading: please see [`UPGRADING.md`](UPGRADING.md#230)._
@@ -20,7 +24,6 @@ _If you are upgrading: please see [`UPGRADING.md`](UPGRADING.md#230)._
 
 ### Changed
 
-- 🗑️ Drop support for x86 architecture on macOS ([#421]) ([**@denialhaag**])
 - 🎨 Adjust the ESP reward calculation to become Qiskit v2 compatible ([#406]) ([**@nquetschlich**])
 - ✨ Improve the ML part and its usability ([#403]) ([**@nquetschlich**])
 - 📝 Migrate the documentation from .rst to .md files ([#403]) ([**@nquetschlich**])
@@ -40,7 +43,7 @@ _📚 Refer to the [GitHub Release Notes](https://github.com/munich-quantum-tool
 
 <!-- PR links -->
 
-[#421]: https://github.com/munich-quantum-toolkit/predictor/pull/406
+[#421]: https://github.com/munich-quantum-toolkit/predictor/pull/421
 [#406]: https://github.com/munich-quantum-toolkit/predictor/pull/406
 [#405]: https://github.com/munich-quantum-toolkit/predictor/pull/405
 [#403]: https://github.com/munich-quantum-toolkit/predictor/pull/403
diff --git a/UPGRADING.md b/UPGRADING.md
index 86b31b79d..cc81470e9 100644
--- a/UPGRADING.md
+++ b/UPGRADING.md
@@ -4,8 +4,12 @@ This document describes breaking changes and how to upgrade. For a complete list
 
 ## [Unreleased]
 
-With this release, `mqt-predictor` no longer supports the x86 architecture on macOS.
-This step was necessary to ensure compatibility with PyTorch.
+### End of support for x86 macOS systems
+
+Starting with this release, MQT Predictor no longer supports x86 macOS systems.
+This step is necessary to ensure compatibility with PyTorch.
+Furthermore, this coincides with GitHub removing the `macos-13` runners from their infrastructure.
+x86 macOS systems are no longer tested in our CI.
 
 ## [2.3.0] - 2025-07-29
 
@@ -19,7 +23,7 @@ The RL action handling has been updated to utilize dataclasses, which improves t
 
 ### General
 
-MQT Bench has moved to the [munich-quantum-toolkit](https://github.com/munich-quantum-toolkit) GitHub organization under https://github.com/munich-quantum-toolkit/predictor.
+MQT Predictor has moved to the [munich-quantum-toolkit](https://github.com/munich-quantum-toolkit) GitHub organization under https://github.com/munich-quantum-toolkit/predictor.
 While most links should be automatically redirected, please update any links in your code to point to the new location.
 All links in the documentation have been updated accordingly.