diff --git a/.release-please-manifest.json b/.release-please-manifest.json
index f1c1e58..210d290 100644
--- a/.release-please-manifest.json
+++ b/.release-please-manifest.json
@@ -1,3 +1,3 @@
 {
-  ".": "0.5.0"
+  ".": "0.5.1"
 }
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2edb6c2..8eb0f27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,13 @@
 # Changelog
 
+## [0.5.1](https://github.com/tableau/hyper-api-rust/compare/v0.5.0...v0.5.1) (2026-06-08)
+
+
+### Bug Fixes
+
+* **client:** enable TCP keepalive on hyperd connections ([8de3b0e](https://github.com/tableau/hyper-api-rust/commit/8de3b0e8c2ec23eeae15477cf6731877dc3d074f))
+* **daemon:** stop redundant off-base daemon after concurrent cold-start ([655560e](https://github.com/tableau/hyper-api-rust/commit/655560e2e561c41a6ec98a08d4c99da55ed5a717))
+
 ## [0.5.0](https://github.com/tableau/hyper-api-rust/compare/v0.4.0...v0.5.0) (2026-06-07)
 
 
diff --git a/Cargo.lock b/Cargo.lock
index c37bddf..4d860b6 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1845,7 +1845,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "arrow",
  "async-stream",
@@ -1870,7 +1870,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-core"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "arrow",
  "base64",
@@ -1910,7 +1910,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-derive"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "hyperdb-api",
  "hyperdb-compile-check",
@@ -1922,7 +1922,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-node"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "hyperdb-api",
  "napi",
@@ -1934,7 +1934,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-api-salesforce"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "arrow",
  "base64",
@@ -1955,7 +1955,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-bootstrap"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "anyhow",
  "clap",
@@ -1973,7 +1973,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-compile-check"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "hyperdb-api",
  "parking_lot",
@@ -1982,7 +1982,7 @@ dependencies = [
 
 [[package]]
 name = "hyperdb-mcp"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "arrow",
  "base64",
@@ -3819,7 +3819,7 @@ dependencies = [
 
 [[package]]
 name = "sea-query-hyperdb"
-version = "0.5.0"
+version = "0.5.1"
 dependencies = [
  "sea-query",
 ]
diff --git a/Cargo.toml b/Cargo.toml
index 501aae1..4e3a71f 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 = "0.5.0"
+version = "0.5.1"
 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 751b312..b65fa2e 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 = "=0.5.0", optional = true }
+hyperdb-api-salesforce = { path = "../hyperdb-api-salesforce", version = "=0.5.1", 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 ebd883a..406aa20 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 = "=0.5.0", optional = true }
+hyperdb-compile-check = { path = "../hyperdb-compile-check", version = "=0.5.1", optional = true }
 # x-release-please-end
 
 [dev-dependencies]
diff --git a/hyperdb-api/Cargo.toml b/hyperdb-api/Cargo.toml
index 57be97f..5c55aaa 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 = "=0.5.0" }
+hyperdb-api-core = { path = "../hyperdb-api-core", version = "=0.5.1" }
 # 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 efef7ae..e2e2d38 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 = "0.5.0"
+version = "0.5.1"
 # 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 = "=0.5.0" }
+hyperdb-api = { path = "../hyperdb-api", version = "=0.5.1" }
 # x-release-please-end
 parking_lot = "0.12"
 tempfile = "3.20"
diff --git a/hyperdb-mcp/Cargo.toml b/hyperdb-mcp/Cargo.toml
index d8cc7c5..2437d53 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 = "=0.5.0" }
+hyperdb-api = { path = "../hyperdb-api", version = "=0.5.1" }
 # 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 8f0916f..4b9fcbe 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-0.5.0
+0.5.1