From 1a88f79a8937410112844b90aaf6e464fb8bbd5f Mon Sep 17 00:00:00 2001
From: Eisenwave <me@eisenwave.net>
Date: Mon, 31 Aug 2026 07:15:28 +0200
Subject: [PATCH] Add P4052

---
 features_cpp26.yaml | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/features_cpp26.yaml b/features_cpp26.yaml
index ab22154..3e32182 100644
--- a/features_cpp26.yaml
+++ b/features_cpp26.yaml
@@ -397,7 +397,7 @@ features:
       - Xcode 16.3
 
   - desc: "Saturation arithmetic"
-    paper: P0543
+    paper: [P0543, P4052]
     summary: "Arithmetic operations that clamp to min/max instead of overflowing."
     content: saturation-arithmetic.md
     lib: true
@@ -408,6 +408,10 @@ features:
     ftm:
       - name: __cpp_lib_saturation_arithmetic
         value: 202311L
+        desc: "`std::add_sat()`, ..., `std::saturate_cast()`"
+      - name: __cpp_lib_saturation_arithmetic
+        value: 202603L
+        desc: "Rename to `std::saturating_add()`, ..., `std::saturating_cast()`"
     keywords: ["math"]
 
   - desc: "Freestanding library: Partial Classes"