diff --git a/smack-core/src/main/java/org/jivesoftware/smack/SmackConfiguration.java b/smack-core/src/main/java/org/jivesoftware/smack/SmackConfiguration.java
index 9e15ef8b0..75f23a97f 100644
--- a/smack-core/src/main/java/org/jivesoftware/smack/SmackConfiguration.java
+++ b/smack-core/src/main/java/org/jivesoftware/smack/SmackConfiguration.java
@@ -240,18 +240,6 @@ public final class SmackConfiguration {
         compressionHandlers.add(xmppInputOutputStream);
     }
 
-    /**
-     * Get compression handlers.
-     *
-     * @return a list of compression handlers.
-     * @deprecated use {@link #getCompressionHandlers()} instead.
-     */
-    @Deprecated
-    // TODO: Remove in Smack 4.4.
-    public static List<XMPPInputOutputStream> getCompresionHandlers() {
-        return getCompressionHandlers();
-    }
-
     /**
      * Get compression handlers.
      *
diff --git a/smack-core/src/main/java/org/jivesoftware/smack/SmackException.java b/smack-core/src/main/java/org/jivesoftware/smack/SmackException.java
index fbf6ebd40..f58ed10a4 100644
--- a/smack-core/src/main/java/org/jivesoftware/smack/SmackException.java
+++ b/smack-core/src/main/java/org/jivesoftware/smack/SmackException.java
@@ -98,13 +98,6 @@ public abstract class SmackException extends Exception {
             return new NoResponseException(sb.toString());
         }
 
-        @Deprecated
-        // TODO: Remove in Smack 4.4.
-        public static NoResponseException newWith(long timeout,
-                StanzaCollector collector) {
-            return newWith(timeout, collector.getStanzaFilter(), false);
-        }
-
         public static NoResponseException newWith(long timeout,
                         StanzaCollector collector, boolean stanzaCollectorCancelled) {
             return newWith(timeout, collector.getStanzaFilter(), stanzaCollectorCancelled);
diff --git a/smack-experimental/src/main/java/org/jivesoftware/smackx/sid/provider/StanzaIdProvider.java b/smack-experimental/src/main/java/org/jivesoftware/smackx/sid/provider/StanzaIdProvider.java
index ce59799df..a45d34289 100644
--- a/smack-experimental/src/main/java/org/jivesoftware/smackx/sid/provider/StanzaIdProvider.java
+++ b/smack-experimental/src/main/java/org/jivesoftware/smackx/sid/provider/StanzaIdProvider.java
@@ -26,10 +26,6 @@ public class StanzaIdProvider extends ExtensionElementProvider<StanzaIdElement>
 
     public static final StanzaIdProvider INSTANCE = new StanzaIdProvider();
 
-    // TODO: Remove in Smack 4.4.
-    @Deprecated
-    public static final StanzaIdProvider TEST_INSTANCE = INSTANCE;
-
     @Override
     public StanzaIdElement parse(XmlPullParser parser, int initialDepth, XmlEnvironment xmlEnvironment) {
         String id = parser.getAttributeValue(null, StanzaIdElement.ATTR_ID);