From b58c23573375159ae0c2c5a4e5373fc7a93d33e4 Mon Sep 17 00:00:00 2001
From: "Tobin C. Harding" <me@tobin.cc>
Date: Fri, 8 Dec 2023 11:05:19 +1100
Subject: [PATCH] io: Make crate MSRV 1.56.1

Same as for `rust-bitcoin`, make the MSRV of the `io` crate Rust 1.56.1
---
 io/Cargo.toml | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/io/Cargo.toml b/io/Cargo.toml
index 87101120..0156c161 100644
--- a/io/Cargo.toml
+++ b/io/Cargo.toml
@@ -9,7 +9,8 @@ description = "Simple I/O traits for no-std (and std) environments"
 categories = ["no-std"]
 keywords = [ "io", "no-std" ]
 readme = "README.md"
-edition = "2018"
+edition = "2021"
+rust-version = "1.56.1"
 exclude = ["tests", "contrib"]
 
 [features]