diff --git a/types/index.d.ts b/types/index.d.ts
index bf85409..00496c2 100644
--- a/types/index.d.ts
+++ b/types/index.d.ts
@@ -6,6 +6,11 @@ export function Middleware(mwOpts: import("./src").MiddlewareOptions): {
     started(): Promise<void>;
     stopped(): Promise<void>;
 };
+export const Tracing: () => {
+    name: string;
+    created(_broker: any): void;
+    localChannel: (handler: any, chan: any) => any;
+};
 export const Adapters: {
     Base: typeof import("./src/adapters/base");
     AMQP: typeof import("./src/adapters/amqp");
diff --git a/types/src/adapters/amqp.d.ts b/types/src/adapters/amqp.d.ts
index 890bf67..c354aaa 100644
--- a/types/src/adapters/amqp.d.ts
+++ b/types/src/adapters/amqp.d.ts
@@ -17,6 +17,12 @@ export = AmqpAdapter;
  * @property {Object} amqp.exchangeOptions AMQP lib exchange configuration
  * @property {Object} amqp.messageOptions AMQP lib message configuration
  * @property {Object} amqp.consumerOptions AMQP lib consume configuration
+ * @property {publishAssertExchange} amqp.publishAssertExchange AMQP lib exchange configuration for one-time calling assertExchange() before publishing in new exchange by sendToChannel
+ */
+/**
+ * @typedef {Object} publishAssertExchange
+ * @property {Boolean} enabled Enable/disable one-time calling channel.assertExchange() before publishing in new exchange by sendToChannel
+ * @property {Object} exchangeOptions AMQP lib exchange configuration  https://amqp-node.github.io/amqplib/channel_api.html#channel_assertExchange
  */
 /**
  * @typedef {Object} SubscriptionEntry
@@ -47,6 +53,10 @@ declare class AmqpAdapter extends BaseAdapter {
     stopping: boolean;
     connectAttempt: number;
     connectionCount: number;
+    /**
+     * @type {Set<string>}
+     */
+    assertedExchanges: Set<string>;
     /**
      * Connect to the adapter with reconnecting logic
      */
@@ -96,7 +106,7 @@ declare class AmqpAdapter extends BaseAdapter {
     publish(channelName: string, payload: any, opts?: any | null): Promise<void>;
 }
 declare namespace AmqpAdapter {
-    export { AMQPLibConnection, AMQPLibChannel, ServiceBroker, Logger, Channel, BaseDefaultOptions, AmqpDefaultOptions, SubscriptionEntry };
+    export { AMQPLibConnection, AMQPLibChannel, ServiceBroker, Logger, Channel, BaseDefaultOptions, AmqpDefaultOptions, publishAssertExchange, SubscriptionEntry };
 }
 import BaseAdapter = require("./base");
 /**
@@ -117,6 +127,7 @@ type AmqpDefaultOptions = {
         exchangeOptions: any;
         messageOptions: any;
         consumerOptions: any;
+        publishAssertExchange: publishAssertExchange;
     };
 };
 /**
@@ -153,3 +164,13 @@ type ServiceBroker = import("moleculer").ServiceBroker;
  * Logger instance
  */
 type Logger = import("moleculer").LoggerInstance;
+type publishAssertExchange = {
+    /**
+     * Enable/disable one-time calling channel.assertExchange() before publishing in new exchange by sendToChannel
+     */
+    enabled: boolean;
+    /**
+     * AMQP lib exchange configuration  https://amqp-node.github.io/amqplib/channel_api.html#channel_assertExchange
+     */
+    exchangeOptions: any;
+};
diff --git a/types/src/index.d.ts b/types/src/index.d.ts
index 184bc04..a418de9 100644
--- a/types/src/index.d.ts
+++ b/types/src/index.d.ts
@@ -64,6 +64,14 @@ export type DeadLetteringOptions = {
      * Name of the dead-letter exchange (only for AMQP adapter)
      */
     exchangeName: string;
+    /**
+     * Options for the dead-letter exchange (only for AMQP adapter)
+     */
+    exchangeOptions: any;
+    /**
+     * Options for the dead-letter queue (only for AMQP adapter)
+     */
+    queueOptions: any;
 };
 /**
  * Base consumer configuration
@@ -142,33 +150,23 @@ export type MiddlewareOptions = {
      */
     adapter: string | AdapterConfig;
     /**
-     * Property name of channels definition in service schema
-     *
-     * @default "channels"
+     * Property name of channels definition in service schema.
      */
-    schemaProperty?: string;
+    schemaProperty: string | null;
     /**
-     * Method name to send messages. Default is "sendToChannel"
-     *
-     * @default "sendToChannel"
+     * Method name to send messages.
      */
-    sendMethodName?: string;
+    sendMethodName: string | null;
     /**
      * Property name of the adapter instance in broker instance.
-     *
-     * @default "channelAdapter"
      */
-    adapterPropertyName?: string;
+    adapterPropertyName: string | null;
     /**
      * Method name to add to service in order to trigger channel handlers.
-     *
-     * @default "emitLocalChannelHandler"
      */
-    channelHandlerTrigger?: string;
+    channelHandlerTrigger: string | null;
     /**
      * Using Moleculer context in channel handlers by default.
-     *
-     * @default false
      */
-    context?: boolean;
+    context: boolean | null;
 };
diff --git a/types/src/tracing.d.ts b/types/src/tracing.d.ts
new file mode 100644
index 0000000..76f543e
--- /dev/null
+++ b/types/src/tracing.d.ts
@@ -0,0 +1,6 @@
+declare function _exports(): {
+    name: string;
+    created(_broker: any): void;
+    localChannel: (handler: any, chan: any) => any;
+};
+export = _exports;