diff --git a/docs/authentication.asciidoc b/docs/authentication.asciidoc
index c27553913..7866d8c74 100644
--- a/docs/authentication.asciidoc
+++ b/docs/authentication.asciidoc
@@ -106,27 +106,22 @@ const client = new Client({
 
 === SSL configuration
 
-Without any additional configuration you can specify `https://` node urls, but 
-the certificates used to sign these requests will not verified 
-(`rejectUnauthorized: false`). To turn on certificate verification, you must 
-specify an `ssl` object either in the top level config or in each host config 
-object and set `rejectUnauthorized: true`. The ssl config object can contain 
-many of the same configuration options that 
-https://nodejs.org/api/tls.html#tls_tls_connect_options_callback[tls.connect()] 
-accepts.
+Without any additional configuration you can specify `https://` node urls, and 
+the certificates used to sign these requests will be verified. To turn off certificate verification, you must specify an `ssl` object in the top level config and set `rejectUnauthorized: false`. The default `ssl` values are the same that Node.js's https://nodejs.org/api/tls.html#tls_tls_connect_options_callback[`tls.connect()`] 
+uses.
 
 [source,js]
 ----
 const { Client } = require('@elastic/elasticsearch')
 const client = new Client({
-  node: 'http://localhost:9200',
+  node: 'https://localhost:9200',
   auth: {
     username: 'elastic',
     password: 'changeme'
   },
   ssl: {
     ca: fs.readFileSync('./cacert.pem'),
-    rejectUnauthorized: true
+    rejectUnauthorized: false
   }
 })
 ----
\ No newline at end of file
diff --git a/docs/breaking-changes.asciidoc b/docs/breaking-changes.asciidoc
index fb8dc3b76..03675b346 100644
--- a/docs/breaking-changes.asciidoc
+++ b/docs/breaking-changes.asciidoc
@@ -95,6 +95,16 @@ error, such as `statusCode`, `headers`, `body`, and `message`.
 version, you can specify the host and port in a variety of ways. With the new 
 client, there is only one way to do it, via the `node` parameter.
 
+* Certificates are verified by default, if you want to disable certificates verification, you should set the `rejectUnauthorized` option to `false` inside the `ssl` configuration:
+
+[source,js]
+----
+const { Client } = require('@elastic/elasticsearch')
+const client = new Client({
+  ssl: { rejectUnauthorized: false }
+})
+----
+
 * The `plugins` option has been removed. If you want to extend the client now, 
 you should use the `client.extend` API.
 
diff --git a/docs/configuration.asciidoc b/docs/configuration.asciidoc
index 669126a17..6182effec 100644
--- a/docs/configuration.asciidoc
+++ b/docs/configuration.asciidoc
@@ -76,11 +76,11 @@ auth: {
 _Default:_ `3`
 
 |`requestTimeout`
-|`number` - Max request timeout for each request. +
+|`number` - Max request timeout in milliseconds for each request. +
 _Default:_ `30000`
 
 |`pingTimeout`
-|`number` - Max ping request timeout for each request. +
+|`number` - Max ping request timeout in milliseconds for each request. +
 _Default:_ `3000`
 
 |`sniffInterval`
diff --git a/docs/helpers.asciidoc b/docs/helpers.asciidoc
index 8435ffa3e..67cb1c94e 100644
--- a/docs/helpers.asciidoc
+++ b/docs/helpers.asciidoc
@@ -150,6 +150,64 @@ const b = client.helpers.bulk({
 
 |===
 
+==== Supported operations
+
+===== Index
+[source,js]
+----
+client.helpers.bulk({
+  datasource: myDatasource,
+  onDocument (doc) {
+    return {
+      index: { _index: 'my-index' }
+    }
+  }
+})
+----
+
+===== Create
+[source,js]
+----
+client.helpers.bulk({
+  datasource: myDatasource,
+  onDocument (doc) {
+    return {
+      create: { _index: 'my-index', _id: doc.id }
+    }
+  }
+})
+----
+
+===== Update
+[source,js]
+----
+client.helpers.bulk({
+  datasource: myDatasource,
+  onDocument (doc) {
+    // Note that the update operation requires you to return
+    // an array, where the first element is the actio, while
+    // the second are the document option
+    return [
+      { update: { _index: 'my-index', _id: doc.id } },
+      { doc_as_upsert: true }
+    ]
+  }
+})
+----
+
+===== Delete
+[source,js]
+----
+client.helpers.bulk({
+  datasource: myDatasource,
+  onDocument (doc) {
+    return {
+      delete: { _index: 'my-index', _id: doc.id }
+    }
+  }
+})
+----
+
 ==== Abort a bulk operation
 If needed, you can abort a bulk operation at any time. The bulk helper returns a https://promisesaplus.com/[thenable], which has an `abort` method.
 
diff --git a/docs/usage.asciidoc b/docs/usage.asciidoc
index c279b886d..2af2f84a9 100644
--- a/docs/usage.asciidoc
+++ b/docs/usage.asciidoc
@@ -145,7 +145,7 @@ The supported request specific options are:
 _Default:_ `null`
 
 |`requestTimeout`
-|`number` - Max request timeout for the request, it overrides the client default. +
+|`number` - Max request timeout for the request in milliseconds, it overrides the client default. +
 _Default:_ `30000`
 
 |`maxRetries`
@@ -194,32 +194,64 @@ console.log(errors)
 
 You can find the errors exported by the client in the table below.
 
-[cols=2*]
+[cols=3*]
 |===
+|*Error*
+|*Description*
+|*Properties*
+
 |`ElasticsearchClientError`
 |Every error inherits from this class, it is the basic error generated by the client.
+a|* `name` - `string`
+* `message` - `string`
 
 |`TimeoutError`
 |Generated when a request exceeds the `requestTimeout` option.
+a|* `name` - `string`
+* `message` - `string`
+* `meta` - `object`, contains all the information about the request
 
 |`ConnectionError`
 |Generated when an error occurs during the request, it can be a connection error or a malformed stream of data.
+a|* `name` - `string`
+* `message` - `string`
+* `meta` - `object`, contains all the information about the request
 
 |`RequestAbortedError`
 |Generated if the user calls the `request.abort()` method.
+a|* `name` - `string`
+* `message` - `string`
+* `meta` - `object`, contains all the information about the request
 
 |`NoLivingConnectionsError`
 |Given the configuration, the ConnectionPool was not able to find a usable Connection for this request.
+a|* `name` - `string`
+* `message` - `string`
+* `meta` - `object`, contains all the information about the request
 
 |`SerializationError`
 |Generated if the serialization fails.
+a|* `name` - `string`
+* `message` - `string`
+* `data` - `object`, the object to serialize
 
 |`DeserializationError`
 |Generated if the deserialization fails.
+a|* `name` - `string`
+* `message` - `string`
+* `data` - `string`, the string to deserialize
 
 |`ConfigurationError`
 |Generated if there is a malformed configuration or parameter.
+a|* `name` - `string`
+* `message` - `string`
 
 |`ResponseError`
 |Generated when in case of a `4xx` or `5xx` response.
+a|* `name` - `string`
+* `message` - `string`
+* `meta` - `object`, contains all the information about the request
+* `body` - `object`, the response body
+* `statusCode` - `object`, the response headers
+* `headers` - `object`, the response status code
 |===