From 2fef1ab3c3b5221923ae14a9f51cb388537022ab Mon Sep 17 00:00:00 2001
From: Manuel Raimann <raimannma@outlook.de>
Date: Fri, 6 Feb 2026 16:51:13 +0100
Subject: [PATCH] docs: add missing derive feature flag to README

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
---
 README.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/README.md b/README.md
index 0675677..56cc9f1 100644
--- a/README.md
+++ b/README.md
@@ -145,6 +145,7 @@ let study: Study<f64> = Study::with_sampler(Direction::Minimize, sampler);
 ## Feature Flags
 
 - `async` - Enable async optimization methods (requires tokio)
+- `derive` - Enable `#[derive(Categorical)]` for enum parameters
 
 ## Documentation