diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4424f9b7c6..bb6da3b33f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,29 @@
 # Changelog
 
+## [v4.3.0] - 2021-03-10
+
+### Added:
+
+- **[dnsprovider]** Add DNS provider for Njalla
+- **[dnsprovider]** Add DNS provider for Domeneshop
+- **[dnsprovider]** Add DNS provider for Hurricane Electric
+- **[dnsprovider]** designate: support for Openstack Application Credentials
+- **[dnsprovider]** edgedns: support for .edgerc file
+
+### Changed:
+
+- **[dnsprovider]** infomaniak: Make error message more meaningful
+- **[dnsprovider]** cloudns: Improve reliability
+- **[dnsprovider]** rfc2163: Removed support for MD5 algorithm. The default algorithm is now SHA1.
+
+### Fixed:
+
+- **[dnsprovider]** desec: fix error with default TTL
+- **[dnsprovider]** mythicbeasts: implement `ProviderTimeout`
+- **[dnsprovider]** dnspod: improve search accuracy when a domain have more than 100 records
+- **[lib]** Increase HTTP client timeouts
+- **[lib]** preferred chain only match root name
+
 ## [v4.2.0] - 2021-01-24
 
 ### Added:
diff --git a/acme/api/internal/sender/useragent.go b/acme/api/internal/sender/useragent.go
index 0e6ac1667e..1e0140167d 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/4.2.0"
+	ourUserAgent = "xenolf-acme/4.3.0"
 
 	// 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"
 )