diff --git a/Cargo.toml b/Cargo.toml
index 63fee737e..4caecb897 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -4,13 +4,13 @@ default-members = ["crates/rmcp", "crates/rmcp-macros"]
 resolver = "2"
 
 [workspace.dependencies]
-rmcp = { version = "3.4.1", path = "./crates/rmcp" }
-rmcp-macros = { version = "3.4.1", path = "./crates/rmcp-macros" }
+rmcp = { version = "3.5.0", path = "./crates/rmcp" }
+rmcp-macros = { version = "3.5.0", path = "./crates/rmcp-macros" }
 
 [workspace.package]
 edition = "2024"
 rust-version = "1.88"
-version = "3.4.1"
+version = "3.5.0"
 authors = ["4t145 <u4t145@163.com>"]
 license = "Apache-2.0"
 repository = "https://github.com/modelcontextprotocol/rust-sdk/"
diff --git a/crates/rmcp/CHANGELOG.md b/crates/rmcp/CHANGELOG.md
index a84ebc3ba..b65da0ab2 100644
--- a/crates/rmcp/CHANGELOG.md
+++ b/crates/rmcp/CHANGELOG.md
@@ -7,6 +7,24 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+## [3.5.0](https://github.com/modelcontextprotocol/rust-sdk/compare/rmcp-v3.4.1...rmcp-v3.5.0) - 2026-09-27
+
+### Added
+
+- update LATEST and add LATEST_WITH_INITIALIZE ([#1105](https://github.com/modelcontextprotocol/rust-sdk/pull/1105))
+
+### Fixed
+
+- *(model)* decode float fields through serde_json::Number ([#1300](https://github.com/modelcontextprotocol/rust-sdk/pull/1300))
+- *(rmcp)* reject duplicate sep-2243 headers ([#1274](https://github.com/modelcontextprotocol/rust-sdk/pull/1274))
+- *(transport)* match explicit default ports in Origin allowlist ([#1270](https://github.com/modelcontextprotocol/rust-sdk/pull/1270))
+- *(rmcp)* tolerate empty cacheScope instead of silently dropping the whole result ([#1281](https://github.com/modelcontextprotocol/rust-sdk/pull/1281))
+- *(model)* preserve explicit null structuredContent in CallToolResult ([#1295](https://github.com/modelcontextprotocol/rust-sdk/pull/1295))
+
+### Other
+
+- cargo fmt fixes on validate_standard_headers changes ([#1275](https://github.com/modelcontextprotocol/rust-sdk/pull/1275))
+
 ## [3.4.1](https://github.com/modelcontextprotocol/rust-sdk/compare/rmcp-v3.4.0...rmcp-v3.4.1) - 2026-09-23
 
 ### Fixed