diff --git a/CHANGELOG.md b/CHANGELOG.md
index 2042b4d5..74cbd431 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,11 @@
 # Changelog
 
+## [v4.19.2] - 2024-10-06
+
+### Fixed
+
+- **[lib]** go1.22 compatibility
+
 ## [v4.19.1] - 2024-10-06
 
 ### Fixed
diff --git a/acme/api/internal/sender/useragent.go b/acme/api/internal/sender/useragent.go
index afba94cd..1051f286 100644
--- a/acme/api/internal/sender/useragent.go
+++ b/acme/api/internal/sender/useragent.go
@@ -5,10 +5,10 @@ package sender
 
 const (
 	// ourUserAgent is the User-Agent of this underlying library package.
-	ourUserAgent = "xenolf-acme/4.19.1"
+	ourUserAgent = "xenolf-acme/4.19.2"
 
 	// ourUserAgentComment is part of the UA comment linked to the version status of this underlying library package.
 	// values: detach|release
 	// NOTE: Update this with each tagged release.
-	ourUserAgentComment = "detach"
+	ourUserAgentComment = "release"
 )