diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index 2537c1f..f1c1e58 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.4.0"
+  ".": "0.5.0"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 53e48c8..2edb6c2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,20 @@
 # Changelog
 
+## [0.5.0](https://github.com/tableau/hyper-api-rust/compare/v0.4.0...v0.5.0) (2026-06-07)
+
+
+### Features
+
+* **daemon:** identified PONG handshake + port-scan resolver groundwork ([751fd75](https://github.com/tableau/hyper-api-rust/commit/751fd7576f82aa22c4ac619bcf7a17b89f904bc0))
+* **daemon:** keep daemon resident by default; CLI auto-discovers port ([e123688](https://github.com/tableau/hyper-api-rust/commit/e12368808cc2c6e4f7de6a0a158c914e332299e2))
+* **daemon:** port-scanning locator + newer-client version takeover ([114a155](https://github.com/tableau/hyper-api-rust/commit/114a1551b040084142540c124de27cbdb23cfd59))
+* **mcp:** surface hyperd endpoint + daemon health port in status tool ([293a7a0](https://github.com/tableau/hyper-api-rust/commit/293a7a0fe860d5e3b2a69f7a52e89c2b0530374b))
+
+
+### Bug Fixes
+
+* **mcp:** harden daemon discovery — identified PONG, port scanning, version takeover, resident-by-default ([#115](https://github.com/tableau/hyper-api-rust/issues/115)) ([05019b9](https://github.com/tableau/hyper-api-rust/commit/05019b958fc12f35efe13a47931a50d66496ad80))
+
 ## [0.4.0](https://github.com/tableau/hyper-api-rust/compare/v0.3.1...v0.4.0) (2026-06-02)
 
 
diff --git a/Cargo.lock b/Cargo.lock
index 99244cb..c37bddf 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1845,7 +1845,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api"
-version = "0.4.0"
+version = "0.5.0"
 dependencies = [
  "arrow",
  "async-stream",
@@ -1870,7 +1870,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-core"
-version = "0.4.0"
+version = "0.5.0"
 dependencies = [
  "arrow",
  "base64",
@@ -1910,7 +1910,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-derive"
-version = "0.4.0"
+version = "0.5.0"
 dependencies = [
  "hyperdb-api",
  "hyperdb-compile-check",
@@ -1922,7 +1922,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-node"
-version = "0.4.0"
+version = "0.5.0"
 dependencies = [
  "hyperdb-api",
  "napi",
@@ -1934,7 +1934,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-salesforce"
-version = "0.4.0"
+version = "0.5.0"
 dependencies = [
  "arrow",
  "base64",
@@ -1955,7 +1955,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-bootstrap"
-version = "0.4.0"
+version = "0.5.0"
 dependencies = [
  "anyhow",
  "clap",
@@ -1973,7 +1973,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-compile-check"
-version = "0.4.0"
+version = "0.5.0"
 dependencies = [
  "hyperdb-api",
  "parking_lot",
@@ -1982,7 +1982,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-mcp"
-version = "0.4.0"
+version = "0.5.0"
 dependencies = [
  "arrow",
  "base64",
@@ -3819,7 +3819,7 @@ dependencies = [
 
 [[package]]
 name = "sea-query-hyperdb"
-version = "0.4.0"
+version = "0.5.0"
 dependencies = [
  "sea-query",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index ef4a58e..501aae1 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -26,7 +26,7 @@ exclude = ["hyperdb-compile-check"]
 # `cargo build --manifest-path hyperdb-compile-check/Cargo.toml`.
 
 [workspace.package]
-version = "0.4.0"
+version = "0.5.0"
 edition = "2021"
 rust-version = "1.81"
 license = "MIT OR Apache-2.0"
diff --git a/hyperdb-api-core/Cargo.toml b/hyperdb-api-core/Cargo.toml
index 47bdc38..751b312 100644
--- a/hyperdb-api-core/Cargo.toml
+++ b/hyperdb-api-core/Cargo.toml
@@ -65,7 +65,7 @@ serde_json = { workspace = true }
 
 # Salesforce OAuth authentication (optional, via standalone crate)
 # x-release-please-start-version
-hyperdb-api-salesforce = { path = "../hyperdb-api-salesforce", version = "=0.4.0", optional = true }
+hyperdb-api-salesforce = { path = "../hyperdb-api-salesforce", version = "=0.5.0", optional = true }
 # x-release-please-end
 
 # Arrow parsing for catalog operations (optional, used by authenticated_client)
diff --git a/hyperdb-api-derive/Cargo.toml b/hyperdb-api-derive/Cargo.toml
index b7ac80d..ebd883a 100644
--- a/hyperdb-api-derive/Cargo.toml
+++ b/hyperdb-api-derive/Cargo.toml
@@ -27,7 +27,7 @@ syn = { version = "2", features = ["full"] }
 quote = "1"
 proc-macro2 = "1"
 # x-release-please-start-version
-hyperdb-compile-check = { path = "../hyperdb-compile-check", version = "=0.4.0", optional = true }
+hyperdb-compile-check = { path = "../hyperdb-compile-check", version = "=0.5.0", optional = true }
 # x-release-please-end
 
 [dev-dependencies]
diff --git a/hyperdb-api/Cargo.toml b/hyperdb-api/Cargo.toml
index f6ca1d5..57be97f 100644
--- a/hyperdb-api/Cargo.toml
+++ b/hyperdb-api/Cargo.toml
@@ -14,7 +14,7 @@ autobenches = false
 
 [dependencies]
 # x-release-please-start-version
-hyperdb-api-core = { path = "../hyperdb-api-core", version = "=0.4.0" }
+hyperdb-api-core = { path = "../hyperdb-api-core", version = "=0.5.0" }
 # x-release-please-end
 # NOTE: hyperdb-api-derive is intentionally NOT a dep of hyperdb-api.
 # Adding it creates a cycle:
diff --git a/hyperdb-compile-check/Cargo.toml b/hyperdb-compile-check/Cargo.toml
index b1003bc..efef7ae 100644
--- a/hyperdb-compile-check/Cargo.toml
+++ b/hyperdb-compile-check/Cargo.toml
@@ -7,7 +7,7 @@
 [package]
 name = "hyperdb-compile-check"
 # x-release-please-start-version
-version = "0.4.0"
+version = "0.5.0"
 # x-release-please-end
 edition = "2021"
 rust-version = "1.81"
@@ -25,7 +25,7 @@ categories = ["database", "development-tools"]
 
 [dependencies]
 # x-release-please-start-version
-hyperdb-api = { path = "../hyperdb-api", version = "=0.4.0" }
+hyperdb-api = { path = "../hyperdb-api", version = "=0.5.0" }
 # x-release-please-end
 parking_lot = "0.12"
 tempfile = "3.20"
diff --git a/hyperdb-mcp/CHANGELOG.md b/hyperdb-mcp/CHANGELOG.md
index 6936ff4..0356e3e 100644
--- a/hyperdb-mcp/CHANGELOG.md
+++ b/hyperdb-mcp/CHANGELOG.md
@@ -5,7 +5,7 @@ All notable changes to the `hyperdb-mcp` crate will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/),
 and this project adheres to [Semantic Versioning](https://semver.org/).
 
-## [Unreleased]
+## [0.5.0] - 2026-06-07
 
 ### Fixed
 
diff --git a/hyperdb-mcp/Cargo.toml b/hyperdb-mcp/Cargo.toml
index c2a9891..d8cc7c5 100644
--- a/hyperdb-mcp/Cargo.toml
+++ b/hyperdb-mcp/Cargo.toml
@@ -21,7 +21,7 @@ path = "src/main.rs"
 
 [dependencies]
 # x-release-please-start-version
-hyperdb-api = { path = "../hyperdb-api", version = "=0.4.0" }
+hyperdb-api = { path = "../hyperdb-api", version = "=0.5.0" }
 # x-release-please-end
 rmcp = { version = "1.7", features = ["server", "transport-io"] }
 tokio = { version = "1", features = ["rt-multi-thread", "macros", "io-std", "signal", "time"] }
diff --git a/version.txt b/version.txt
index 1d0ba9e..8f0916f 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.4.0
+0.5.0