chore: release v3.1.1 (#1115)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

Cargo.toml

@@ -4,13 +4,13 @@ default-members = ["crates/rmcp", "crates/rmcp-macros"]
 resolver = "2"
 
 [workspace.dependencies]
-rmcp = { version = "3.1.0", path = "./crates/rmcp" }
+rmcp = { version = "3.1.1", path = "./crates/rmcp" }
-rmcp-macros = { version = "3.1.0", path = "./crates/rmcp-macros" }
+rmcp-macros = { version = "3.1.1", path = "./crates/rmcp-macros" }
 
 [workspace.package]
 edition = "2024"
 rust-version = "1.88"
-version = "3.1.0"
+version = "3.1.1"
 authors = ["4t145 <u4t145@163.com>"]
 license = "Apache-2.0"
 repository = "https://github.com/modelcontextprotocol/rust-sdk/"

crates/rmcp-macros/CHANGELOG.md

@@ -7,6 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.1.1](https://github.com/modelcontextprotocol/rust-sdk/compare/rmcp-macros-v3.1.0...rmcp-macros-v3.1.1) - 2026-08-05
+
+### Fixed
+
+- emit cache hints from handler macros ([#1120](https://github.com/modelcontextprotocol/rust-sdk/pull/1120))
+
+### Other
+
+- upgrade darling and syn ([#1138](https://github.com/modelcontextprotocol/rust-sdk/pull/1138))
+
 ## [3.1.0](https://github.com/modelcontextprotocol/rust-sdk/compare/rmcp-macros-v3.0.1...rmcp-macros-v3.1.0) - 2026-07-31
 
 ### Added

crates/rmcp/CHANGELOG.md

@@ -7,6 +7,18 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.1.1](https://github.com/modelcontextprotocol/rust-sdk/compare/rmcp-v3.1.0...rmcp-v3.1.1) - 2026-08-05
+
+### Fixed
+
+- emit cache hints from handler macros ([#1120](https://github.com/modelcontextprotocol/rust-sdk/pull/1120))
+- expose MRTR state to tool handlers ([#1104](https://github.com/modelcontextprotocol/rust-sdk/pull/1104))
+- disambiguate input-required results ([#1103](https://github.com/modelcontextprotocol/rust-sdk/pull/1103))
+
+### Other
+
+- make async-trait optional ([#1119](https://github.com/modelcontextprotocol/rust-sdk/pull/1119))
+
 ## [3.1.0](https://github.com/modelcontextprotocol/rust-sdk/compare/rmcp-v3.0.1...rmcp-v3.1.0) - 2026-07-31
 
 ### Added