From 91f6df1587527876522a2854731445fa8d2a2456 Mon Sep 17 00:00:00 2001
From: Hiroshi Shinaoka <h.shinaoka@gmail.com>
Date: Sat, 20 Jun 2026 08:32:50 +0900
Subject: [PATCH] chore: declare rust-version = 1.56 (MSRV)

Verified the library builds on Rust 1.56.0 (the edition-2021 minimum; the crate
uses no newer language features).

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
---
 Cargo.toml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Cargo.toml b/Cargo.toml
index f6d6c23..32e897d 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -2,6 +2,7 @@
 name = "computegraph"
 version = "0.1.0"
 edition = "2021"
+rust-version = "1.56"
 authors = ["Hiroshi Shinaoka <h.shinaoka@gmail.com>"]
 license = "MIT OR Apache-2.0"
 description = "AD-agnostic tensor computation graph engine: construction, logical resolution, physical materialization, SSA compilation, and evaluation."