diff --git a/Cargo.lock b/Cargo.lock
index c53fba4..662c655 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1074,7 +1074,7 @@ checksum = "9844ddc3a6e533d62bba727eb6c28b5d360921d5175e9ff0f1e621a5c590a4d5"
 
 [[package]]
 name = "fips"
-version = "0.4.1-dev"
+version = "0.4.1"
 dependencies = [
  "arc-swap",
  "bech32",
diff --git a/Cargo.toml b/Cargo.toml
index 69b570c..01e7639 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "fips"
-version = "0.4.1-dev"
+version = "0.4.1"
 edition = "2024"
 description = "A distributed, decentralized network routing protocol for mesh nodes connecting over arbitrary transports"
 license = "MIT"
diff --git a/docs/releases/release-notes-v0.4.0.md b/docs/releases/release-notes-v0.4.0.md
index c7e1365..2ab811a 100644
--- a/docs/releases/release-notes-v0.4.0.md
+++ b/docs/releases/release-notes-v0.4.0.md
@@ -1,6 +1,6 @@
 # FIPS v0.4.0
 
-**Released**: 2026-06-21 (provisional)
+**Released**: 2026-06-27
 
 v0.4.0 is the throughput-and-observability release on the v0.3.x wire
 format. It adds two new ways for nodes to find and reach each other (the