chore: release v3.0.0-beta.3 (#1053)

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 = "3.0.0-beta.2", path = "./crates/rmcp" }
-rmcp-macros = { version = "3.0.0-beta.2", path = "./crates/rmcp-macros" }
+rmcp = { version = "3.0.0-beta.3", path = "./crates/rmcp" }
+rmcp-macros = { version = "3.0.0-beta.3", path = "./crates/rmcp-macros" }
 
 [workspace.package]
 edition = "2024"
 rust-version = "1.88"
-version = "3.0.0-beta.2"
+version = "3.0.0-beta.3"
 authors = ["4t145 <u4t145@163.com>"]
 license = "Apache-2.0"
 repository = "https://github.com/modelcontextprotocol/rust-sdk/"

crates/rmcp/CHANGELOG.md

@@ -7,6 +7,17 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.0.0-beta.3](https://github.com/modelcontextprotocol/rust-sdk/compare/rmcp-v3.0.0-beta.2...rmcp-v3.0.0-beta.3) - 2026-07-27
+
+### Fixed
+
+- [**breaking**] reject missing `issuer` in authorization server metadata by default ([#1054](https://github.com/modelcontextprotocol/rust-sdk/pull/1054))
+- default to allowing missing `issuer` ([#1051](https://github.com/modelcontextprotocol/rust-sdk/pull/1051))
+
+### Other
+
+- make oauth discovery reactive ([#1052](https://github.com/modelcontextprotocol/rust-sdk/pull/1052))
+
 ## [3.0.0-beta.2](https://github.com/modelcontextprotocol/rust-sdk/compare/rmcp-v3.0.0-beta.1...rmcp-v3.0.0-beta.2) - 2026-07-24
 
 ### Added