From 50e7c20cba3cf262ad28dd8e3d2d3b01f4bf7720 Mon Sep 17 00:00:00 2001
From: ChrisRackauckas <me@chrisrackauckas.com>
Date: Mon, 29 Dec 2025 17:34:54 -0500
Subject: [PATCH] Fix ModelingToolkit minimum version bound
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Remove ModelingToolkit v8 from compat since the codebase uses v9-only
features:
- `t_nounits` and `D_nounits` (introduced in v9)

These are used in lecture1.jl, lecture2.jl, and run_away_train_hydraulic.jl.
The docs/Project.toml already correctly requires v9 only.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
---
 Project.toml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Project.toml b/Project.toml
index b610a7b..e050e43 100644
--- a/Project.toml
+++ b/Project.toml
@@ -7,4 +7,4 @@ version = "1.0.0"
 ModelingToolkit = "961ee093-0014-501f-94e3-6117800e7a78"
 
 [compat]
-ModelingToolkit = "8, 9"
+ModelingToolkit = "9"