diff --git a/transport/src/main/java/io/netty/channel/Channel.java b/transport/src/main/java/io/netty/channel/Channel.java
index b849eb241c..39b8417762 100644
--- a/transport/src/main/java/io/netty/channel/Channel.java
+++ b/transport/src/main/java/io/netty/channel/Channel.java
@@ -226,6 +226,7 @@ public interface Channel extends AttributeMap, ChannelOutboundInvoker, ChannelPr
          * Deregister the {@link Channel} of the {@link ChannelPromise} from {@link EventLoop} and notify the
          * {@link ChannelPromise} once the operation was complete.
          */
+        @Deprecated
         void deregister(ChannelPromise promise);
 
         /**
diff --git a/transport/src/main/java/io/netty/channel/ChannelHandlerContext.java b/transport/src/main/java/io/netty/channel/ChannelHandlerContext.java
index 995d223fd5..4c24ff1cc3 100644
--- a/transport/src/main/java/io/netty/channel/ChannelHandlerContext.java
+++ b/transport/src/main/java/io/netty/channel/ChannelHandlerContext.java
@@ -161,6 +161,7 @@ public interface ChannelHandlerContext
     ChannelHandlerContext fireChannelRegistered();
 
     @Override
+    @Deprecated
     ChannelHandlerContext fireChannelUnregistered();
 
     @Override
diff --git a/transport/src/main/java/io/netty/channel/ChannelInboundHandler.java b/transport/src/main/java/io/netty/channel/ChannelInboundHandler.java
index ca81c87f78..4cccc84405 100644
--- a/transport/src/main/java/io/netty/channel/ChannelInboundHandler.java
+++ b/transport/src/main/java/io/netty/channel/ChannelInboundHandler.java
@@ -28,7 +28,10 @@ public interface ChannelInboundHandler extends ChannelHandler {
 
     /**
      * The {@link Channel} of the {@link ChannelHandlerContext} was unregistered from its {@link EventLoop}
+     *
+     * @deprecated use {@link #channelInactive(ChannelHandlerContext)}
      */
+    @Deprecated
     void channelUnregistered(ChannelHandlerContext ctx) throws Exception;
 
     /**
diff --git a/transport/src/main/java/io/netty/channel/ChannelInboundInvoker.java b/transport/src/main/java/io/netty/channel/ChannelInboundInvoker.java
index 1d87314725..64086f348e 100644
--- a/transport/src/main/java/io/netty/channel/ChannelInboundInvoker.java
+++ b/transport/src/main/java/io/netty/channel/ChannelInboundInvoker.java
@@ -37,6 +37,7 @@ interface ChannelInboundInvoker {
      * called of the next  {@link ChannelInboundHandler} contained in the  {@link ChannelPipeline} of the
      * {@link Channel}.
      */
+    @Deprecated
     ChannelInboundInvoker fireChannelUnregistered();
 
     /**
diff --git a/transport/src/main/java/io/netty/channel/ChannelOutboundInvoker.java b/transport/src/main/java/io/netty/channel/ChannelOutboundInvoker.java
index 3b6a326344..64b5ec64cc 100644
--- a/transport/src/main/java/io/netty/channel/ChannelOutboundInvoker.java
+++ b/transport/src/main/java/io/netty/channel/ChannelOutboundInvoker.java
@@ -97,7 +97,9 @@ interface ChannelOutboundInvoker {
      * {@link ChannelOutboundHandler#deregister(ChannelHandlerContext, ChannelPromise)}
      * method called of the next {@link ChannelOutboundHandler} contained in the  {@link ChannelPipeline} of the
      * {@link Channel}.
+     *
      */
+    @Deprecated
     ChannelFuture deregister();
 
     /**
@@ -185,6 +187,7 @@ interface ChannelOutboundInvoker {
      * method called of the next {@link ChannelOutboundHandler} contained in the  {@link ChannelPipeline} of the
      * {@link Channel}.
      */
+    @Deprecated
     ChannelFuture deregister(ChannelPromise promise);
 
     /**
diff --git a/transport/src/main/java/io/netty/channel/ChannelPipeline.java b/transport/src/main/java/io/netty/channel/ChannelPipeline.java
index c7a86fa0d4..f8e07bc9ee 100644
--- a/transport/src/main/java/io/netty/channel/ChannelPipeline.java
+++ b/transport/src/main/java/io/netty/channel/ChannelPipeline.java
@@ -598,6 +598,7 @@ public interface ChannelPipeline
     ChannelPipeline fireChannelRegistered();
 
     @Override
+    @Deprecated
     ChannelPipeline fireChannelUnregistered();
 
     @Override
diff --git a/transport/src/main/java/io/netty/channel/group/ChannelGroup.java b/transport/src/main/java/io/netty/channel/group/ChannelGroup.java
index 91348582f7..88c7ab9c75 100644
--- a/transport/src/main/java/io/netty/channel/group/ChannelGroup.java
+++ b/transport/src/main/java/io/netty/channel/group/ChannelGroup.java
@@ -206,6 +206,7 @@ public interface ChannelGroup extends Set<Channel>, Comparable<ChannelGroup> {
      * @return the {@link ChannelGroupFuture} instance that notifies when
      *         the operation is done for all channels
      */
+    @Deprecated
     ChannelGroupFuture deregister();
 
     /**
@@ -215,5 +216,6 @@ public interface ChannelGroup extends Set<Channel>, Comparable<ChannelGroup> {
      * @return the {@link ChannelGroupFuture} instance that notifies when
      *         the operation is done for all channels
      */
+    @Deprecated
     ChannelGroupFuture deregister(ChannelMatcher matcher);
 }