chore: release v0.8.3 (#498)

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

Author: github-actions[bot]

Cargo.toml

@@ -3,12 +3,12 @@ members = ["crates/rmcp", "crates/rmcp-macros", "examples/*"]
 resolver = "2"
 
 [workspace.dependencies]
-rmcp = { version = "0.8.2", path = "./crates/rmcp" }
-rmcp-macros = { version = "0.8.2", path = "./crates/rmcp-macros" }
+rmcp = { version = "0.8.3", path = "./crates/rmcp" }
+rmcp-macros = { version = "0.8.3", path = "./crates/rmcp-macros" }
 
 [workspace.package]
 edition = "2024"
-version = "0.8.2"
+version = "0.8.3"
 authors = ["4t145 <[email protected]>"]
 license = "MIT"
 repository = "https://github.com/modelcontextprotocol/rust-sdk/"

crates/rmcp/CHANGELOG.md

@@ -7,6 +7,12 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [0.8.3](https://github.com/modelcontextprotocol/rust-sdk/compare/rmcp-v0.8.2...rmcp-v0.8.3) - 2025-10-22
+
+### Fixed
+
+- accept 204 in addition to 202 on initialize ([#497](https://github.com/modelcontextprotocol/rust-sdk/pull/497))
+
 ## [0.8.2](https://github.com/modelcontextprotocol/rust-sdk/compare/rmcp-v0.8.1...rmcp-v0.8.2) - 2025-10-21
 
 ### Added