informalsystems · romac · Dec 9, 2021 · Dec 8, 2021 · Dec 8, 2021 · Dec 8, 2021
diff --git a/.changelog/unreleased/breaking-changes/1660-msrv-1.57.md b/.changelog/unreleased/breaking-changes/1660-msrv-1.57.md
@@ -0,0 +1,2 @@
+- Update MSRV to Rust 1.57
+  ([#1660](https://github.com/informalsystems/ibc-rs/issues/1660))
diff --git a/.github/ISSUE_TEMPLATE/rust-update.md b/.github/ISSUE_TEMPLATE/rust-update.md
@@ -0,0 +1,28 @@
+---
+name: Rust version update
+about: A checklist to perform to update to a new version of Rust.
+---
+
+# Update to Rust release 1.x.y
+
+🦀
+
+- [ ] Update the version in `rust-toolchain.toml`.
+- [ ] Run `cargo clippy --all-features --fix`, review and commit the automatic
+      fixes, and fix all reported lints. Try to resolve the root causes for
+      the lints rather than silencing them with `#[allow(...)]`.
+
+## Update the MSRV (optional)
+
+Additional steps to perform in order to make the new minimal supported
+Rust version:
+
+- [ ] Update the `rust-version` fields in all `Cargo.toml` files.
+- [ ] Update the `msrv` field in `clippy.toml` and fix all lints reported by
+      `cargo clippy --all-features`.
+- [ ] Update the MSRV shields in README files:
+  - `README.md`
+  - `relayer-rest/README.md`
+- [ ] Update the MSRV in the guide: `guide/src/pre_requisites.md`
+- [ ] Add a `.changelog` entry to the `breaking-changes` section,
+      announcing the new MSRV.
diff --git a/README.md b/README.md
@@ -6,7 +6,7 @@
 [![End to End testing][e2e-image]][e2e-link]
 [![Apache 2.0 Licensed][license-image]][license-link]
 ![Rust Stable][rustc-image]
-![Rust 1.56+][rustc-version]
+![Rust 1.57+][rustc-version]
 
 Rust implementation of the Inter-Blockchain Communication (IBC) protocol.
 
@@ -41,7 +41,7 @@ Includes [TLA+ specifications](docs/spec).
 
 ## Requirements
 
-The crates in this project require the latest stable version of Rust: `1.56.0`.
+The crates in this project require the latest stable version of Rust: `1.57.0`.
 
 ## Hermes Guide
 
@@ -113,6 +113,6 @@ Unless required by applicable law or agreed to in writing, software distributed
 [license-image]: https://img.shields.io/badge/license-Apache_2.0-blue.svg
 [license-link]: https://github.com/informalsystems/ibc-rs/blob/master/LICENSE
 [rustc-image]: https://img.shields.io/badge/rustc-stable-blue.svg
-[rustc-version]: https://img.shields.io/badge/rustc-1.56+-blue.svg
+[rustc-version]: https://img.shields.io/badge/rustc-1.57+-blue.svg
 [cosmos-shield]: https://img.shields.io/static/v1?label=&labelColor=1B1E36&color=1B1E36&message=cosmos%20ecosystem&style=for-the-badge&logo=data:image/svg+xml;base64,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
 [cosmos-link]: https://cosmos.network
diff --git a/clippy.toml b/clippy.toml
@@ -0,0 +1 @@
+msrv = "1.57.0"
diff --git a/guide/src/pre_requisites.md b/guide/src/pre_requisites.md
@@ -12,7 +12,7 @@ The provided instructions will install all the Rust toolchain including `rustc`,
 
 ### Version requirements
 
-Hermes is developed and tested using the latest version of Rust, `1.52` at
+Hermes is developed and tested using the latest version of Rust, `1.57` at
 the moment. To check that your toolchain is up-to-date run:
 
 ```shell

diff --git a/modules/Cargo.toml b/modules/Cargo.toml
@@ -7,7 +7,7 @@ readme       = "README.md"
 keywords     = ["blockchain", "consensus", "cosmos", "ibc", "tendermint"]
 repository   = "https://github.com/informalsystems/ibc-rs"
 authors      = ["Informal Systems <hello@informal.systems>"]
-rust-version = "1.56"
+rust-version = "1.57"
 description  = """
     Implementation of the Inter-Blockchain Communication Protocol (IBC).
     This crate comprises the main data structures and on-chain logic.

diff --git a/proto-compiler/Cargo.toml b/proto-compiler/Cargo.toml
@@ -4,7 +4,7 @@ version      = "0.2.0"
 authors      = ["Informal Systems <hello@informal.systems>"]
 edition      = "2021"
 publish      = false
-rust-version = "1.56"
+rust-version = "1.57"
 
 [dependencies]
 git2        = "0.13"

diff --git a/proto/Cargo.toml b/proto/Cargo.toml
@@ -9,7 +9,7 @@ readme       = "README.md"
 categories   = ["cryptography", "cryptography::cryptocurrencies", "database"]
 keywords     = ["blockchain", "cosmos", "tendermint", "ibc", "proto"]
 exclude      = ["definitions"]
-rust-version = "1.56"
+rust-version = "1.57"
 description  = """
     ibc-proto is a Rust implementation of the Cosmos SDK & IBC proto structs
 """

diff --git a/relayer-cli/Cargo.toml b/relayer-cli/Cargo.toml
@@ -8,7 +8,7 @@ keywords   = ["blockchain", "consensus", "cosmos", "ibc", "tendermint"]
 homepage   = "https://hermes.informal.systems/"
 repository = "https://github.com/informalsystems/ibc-rs"
 authors    = ["Informal Systems <hello@informal.systems>"]
-rust-version = "1.56"
+rust-version = "1.57"
 description  = """
   Hermes is an IBC Relayer written in Rust
 """

diff --git a/relayer-rest/Cargo.toml b/relayer-rest/Cargo.toml
@@ -8,7 +8,7 @@ readme       = "README.md"
 keywords     = ["ibc", "rest", "api", "cosmos", "tendermint"]
 homepage     = "https://hermes.informal.systems/"
 repository   = "https://github.com/informalsystems/ibc-rs"
-rust-version = "1.56"
+rust-version = "1.57"
 description  = """
   Rust implementation of a RESTful API server for Hermes
 """

diff --git a/relayer-rest/README.md b/relayer-rest/README.md
@@ -6,7 +6,7 @@
 [![End to End testing][e2e-image]][e2e-link]
 [![Apache 2.0 Licensed][license-image]][license-link]
 ![Rust Stable][rustc-image]
-![Rust 1.56+][rustc-version]
+![Rust 1.57+][rustc-version]
 
 This is the repository for the IBC REST server for use in the Hermes IBC relayer.
 
@@ -39,4 +39,4 @@ Unless required by applicable law or agreed to in writing, software distributed
 [license-image]: https://img.shields.io/badge/license-Apache2.0-blue.svg
 [license-link]: https://github.com/informalsystems/ibc-rs/blob/master/LICENSE
 [rustc-image]: https://img.shields.io/badge/rustc-stable-blue.svg
-[rustc-version]: https://img.shields.io/badge/rustc-1.56+-blue.svg
+[rustc-version]: https://img.shields.io/badge/rustc-1.57+-blue.svg
diff --git a/relayer/Cargo.toml b/relayer/Cargo.toml
@@ -7,7 +7,7 @@ readme       = "README.md"
 keywords     = ["blockchain", "consensus", "cosmos", "ibc", "tendermint"]
 repository   = "https://github.com/informalsystems/ibc-rs"
 authors      = ["Informal Systems <hello@informal.systems>"]
-rust-version = "1.56"
+rust-version = "1.57"
 description  = """
     Implementation of an IBC Relayer in Rust, as a library
 """

diff --git a/telemetry/Cargo.toml b/telemetry/Cargo.toml
@@ -7,7 +7,7 @@ readme       = "README.md"
 keywords     = ["cosmos", "ibc", "relayer", "telemetry"]
 repository   = "https://github.com/informalsystems/ibc-rs"
 authors      = ["Informal Systems <hello@informal.systems>"]
-rust-version = "1.56"
+rust-version = "1.57"
 description  = """
     Telemetry service for the Hermes IBC relayer
 """