Prepare for 0.4.0 release (#448)

Signed-off-by: Ludvig Liljenberg <[email protected]>

Author: ludfjig

CHANGELOG.md

@@ -5,7 +5,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.1.0/).
 ## [Prerelease] - Unreleased
 
 
-## [v0.4.0] - Unreleased
+## [v0.4.0] - 2025-04-30
 
 ### Changed
 - Metrics are now emitted using the [metrics](https://crates.io/crates/metrics) crate by @ludfjig in [#361](https://github.com/hyperlight-dev/hyperlight/pull/361)

Cargo.lock

@@ -21,7 +21,7 @@ exclude = [
 ]
 
 [workspace.package]
-version = "0.3.0"
+version = "0.4.0"
 edition = "2021"
 rust-version = "1.81.0"
 license = "Apache-2.0"
@@ -30,9 +30,9 @@ repository = "https://github.com/hyperlight-dev/hyperlight"
 readme = "README.md"
 
 [workspace.dependencies]
-hyperlight-common = { path = "src/hyperlight_common", version = "0.3.0", default-features = false }
-hyperlight-host = { path = "src/hyperlight_host", version = "0.3.0", default-features = false }
-hyperlight-guest = { path = "src/hyperlight_guest", version = "0.3.0", default-features = false }
+hyperlight-common = { path = "src/hyperlight_common", version = "0.4.0", default-features = false }
+hyperlight-host = { path = "src/hyperlight_host", version = "0.4.0", default-features = false }
+hyperlight-guest = { path = "src/hyperlight_guest", version = "0.4.0", default-features = false }
 hyperlight-testing = { path = "src/hyperlight_testing", default-features = false }
 
 [workspace.lints.rust]