diff --git a/doc/14-features.md b/doc/14-features.md
index 5e65cff00..4ccbebb83 100644
--- a/doc/14-features.md
+++ b/doc/14-features.md
@@ -738,7 +738,8 @@ A detailed list on the available table attributes can be found in the [Livestatu
 ## Status Data Files <a id="status-data"></a>
 
 > **Note**
-> This feature is deprecated and will be removed with Icinga 2.10.0
+>
+> This feature is DEPRECATED and will be removed in Icinga 2 v2.10.
 
 Icinga 1.x writes object configuration data and status data in a cyclic
 interval to its `objects.cache` and `status.dat` files. Icinga 2 provides
@@ -752,6 +753,10 @@ you can safely disable this feature.
 
 ## Compat Log Files <a id="compat-logging"></a>
 
+> **Note**
+>
+> This feature is DEPRECATED and will be removed in Icinga 2 v2.10.
+
 The Icinga 1.x log format is considered being the `Compat Log`
 in Icinga 2 provided with the `CompatLogger` object.
 
diff --git a/lib/compat/compatlogger.cpp b/lib/compat/compatlogger.cpp
index 29990a8ea..0b14c7edb 100644
--- a/lib/compat/compatlogger.cpp
+++ b/lib/compat/compatlogger.cpp
@@ -63,6 +63,9 @@ void CompatLogger::Start(bool runtimeCreated)
 	Log(LogInformation, "CompatLogger")
 		<< "'" << GetName() << "' started.";
 
+	Log(LogWarning, "CompatLogger")
+		<< "The CompatLogger feature is DEPRECATED and will be removed in Icinga v2.10.";
+
 	Checkable::OnNewCheckResult.connect(std::bind(&CompatLogger::CheckResultHandler, this, _1, _2));
 	Checkable::OnNotificationSentToUser.connect(std::bind(&CompatLogger::NotificationSentHandler, this, _1, _2, _3, _4, _5, _6, _7, _8));
 	Downtime::OnDowntimeTriggered.connect(std::bind(&CompatLogger::TriggerDowntimeHandler, this, _1));
diff --git a/lib/compat/statusdatawriter.cpp b/lib/compat/statusdatawriter.cpp
index c4289b366..fa9d8a50c 100644
--- a/lib/compat/statusdatawriter.cpp
+++ b/lib/compat/statusdatawriter.cpp
@@ -78,7 +78,7 @@ void StatusDataWriter::Start(bool runtimeCreated)
 		<< "'" << GetName() << "' started.";
 
 	Log(LogWarning, "StatusDataWriter")
-		<< "The StatusDataWriter feature is deprecated and will be removed with Icinga 2.10.0";
+		<< "The StatusDataWriter feature is DEPRECATED and will be removed in Icinga v2.10.";
 
 	m_ObjectsCacheOutdated = true;