diff --git a/api/api/bulk.js b/api/api/bulk.js
index cf09dbbdd..505fe99ec 100644
--- a/api/api/bulk.js
+++ b/api/api/bulk.js
@@ -50,7 +50,9 @@ function buildBulk (opts) {
     'type',
     '_source',
     '_source_excludes',
+    '_source_exclude',
     '_source_includes',
+    '_source_include',
     'pipeline',
     'pretty',
     'human',
@@ -62,7 +64,9 @@ function buildBulk (opts) {
   const snakeCase = {
     waitForActiveShards: 'wait_for_active_shards',
     _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
     _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
     errorTrace: 'error_trace',
     filterPath: 'filter_path'
   }
diff --git a/api/api/delete_by_query.js b/api/api/delete_by_query.js
index c760a1dab..8450c1eb2 100644
--- a/api/api/delete_by_query.js
+++ b/api/api/delete_by_query.js
@@ -29,7 +29,6 @@ function buildDeleteByQuery (opts) {
    * Perform a [delete_by_query](https://www.elastic.co/guide/en/elasticsearch/reference/master/docs-delete-by-query.html) request
    *
    * @param {list} index - A comma-separated list of index names to search; use `_all` or empty string to perform the operation on all indices
-   * @param {list} type - A comma-separated list of document types to search; leave empty to perform the operation on all types
    * @param {string} analyzer - The analyzer to use for the query string
    * @param {boolean} analyze_wildcard - Specify whether wildcard and prefix queries should be analyzed (default: false)
    * @param {enum} default_operator - The default operator for query string query (AND or OR)
@@ -86,7 +85,9 @@ function buildDeleteByQuery (opts) {
     'sort',
     '_source',
     '_source_excludes',
+    '_source_exclude',
     '_source_includes',
+    '_source_include',
     'terminate_after',
     'stats',
     'version',
@@ -114,7 +115,9 @@ function buildDeleteByQuery (opts) {
     searchType: 'search_type',
     searchTimeout: 'search_timeout',
     _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
     _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
     terminateAfter: 'terminate_after',
     requestCache: 'request_cache',
     waitForActiveShards: 'wait_for_active_shards',
@@ -147,12 +150,6 @@ function buildDeleteByQuery (opts) {
       return handleError(err, callback)
     }
 
-    // check required url components
-    if (params['type'] != null && (params['index'] == null)) {
-      const err = new ConfigurationError('Missing required parameter of the url: index')
-      return handleError(err, callback)
-    }
-
     // validate headers object
     if (options.headers != null && typeof options.headers !== 'object') {
       const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
@@ -160,7 +157,7 @@ function buildDeleteByQuery (opts) {
     }
 
     var warnings = []
-    var { method, body, index, type, ...querystring } = params
+    var { method, body, index, ...querystring } = params
     querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
 
     if (method == null) {
@@ -174,11 +171,7 @@ function buildDeleteByQuery (opts) {
 
     var path = ''
 
-    if ((index) != null && (type) != null) {
-      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_delete_by_query'
-    } else {
-      path = '/' + encodeURIComponent(index) + '/' + '_delete_by_query'
-    }
+    path = '/' + encodeURIComponent(index) + '/' + '_delete_by_query'
 
     // build request object
     const request = {
diff --git a/api/api/exists.js b/api/api/exists.js
index b0647a16d..41128f83e 100644
--- a/api/api/exists.js
+++ b/api/api/exists.js
@@ -53,7 +53,9 @@ function buildExists (opts) {
     'routing',
     '_source',
     '_source_excludes',
+    '_source_exclude',
     '_source_includes',
+    '_source_include',
     'version',
     'version_type',
     'pretty',
@@ -66,7 +68,9 @@ function buildExists (opts) {
   const snakeCase = {
     storedFields: 'stored_fields',
     _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
     _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
     versionType: 'version_type',
     errorTrace: 'error_trace',
     filterPath: 'filter_path'
diff --git a/api/api/exists_source.js b/api/api/exists_source.js
index 1d94e75d1..7eece25e5 100644
--- a/api/api/exists_source.js
+++ b/api/api/exists_source.js
@@ -51,7 +51,9 @@ function buildExistsSource (opts) {
     'routing',
     '_source',
     '_source_excludes',
+    '_source_exclude',
     '_source_includes',
+    '_source_include',
     'version',
     'version_type',
     'pretty',
@@ -63,7 +65,9 @@ function buildExistsSource (opts) {
 
   const snakeCase = {
     _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
     _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
     versionType: 'version_type',
     errorTrace: 'error_trace',
     filterPath: 'filter_path'
diff --git a/api/api/explain.js b/api/api/explain.js
index ef8c82a9b..1f6602e79 100644
--- a/api/api/explain.js
+++ b/api/api/explain.js
@@ -60,7 +60,9 @@ function buildExplain (opts) {
     'routing',
     '_source',
     '_source_excludes',
+    '_source_exclude',
     '_source_includes',
+    '_source_include',
     'pretty',
     'human',
     'error_trace',
@@ -73,7 +75,9 @@ function buildExplain (opts) {
     defaultOperator: 'default_operator',
     storedFields: 'stored_fields',
     _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
     _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
     errorTrace: 'error_trace',
     filterPath: 'filter_path'
   }
diff --git a/api/api/get.js b/api/api/get.js
index 38d95b1c0..670668dc6 100644
--- a/api/api/get.js
+++ b/api/api/get.js
@@ -53,7 +53,9 @@ function buildGet (opts) {
     'routing',
     '_source',
     '_source_excludes',
+    '_source_exclude',
     '_source_includes',
+    '_source_include',
     'version',
     'version_type',
     'pretty',
@@ -66,7 +68,9 @@ function buildGet (opts) {
   const snakeCase = {
     storedFields: 'stored_fields',
     _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
     _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
     versionType: 'version_type',
     errorTrace: 'error_trace',
     filterPath: 'filter_path'
diff --git a/api/api/get_source.js b/api/api/get_source.js
index c74c9f6aa..e9f0491c1 100644
--- a/api/api/get_source.js
+++ b/api/api/get_source.js
@@ -51,7 +51,9 @@ function buildGetSource (opts) {
     'routing',
     '_source',
     '_source_excludes',
+    '_source_exclude',
     '_source_includes',
+    '_source_include',
     'version',
     'version_type',
     'pretty',
@@ -63,7 +65,9 @@ function buildGetSource (opts) {
 
   const snakeCase = {
     _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
     _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
     versionType: 'version_type',
     errorTrace: 'error_trace',
     filterPath: 'filter_path'
diff --git a/api/api/mget.js b/api/api/mget.js
index 7a0b5ee4c..b32742a97 100644
--- a/api/api/mget.js
+++ b/api/api/mget.js
@@ -49,7 +49,9 @@ function buildMget (opts) {
     'routing',
     '_source',
     '_source_excludes',
+    '_source_exclude',
     '_source_includes',
+    '_source_include',
     'pretty',
     'human',
     'error_trace',
@@ -60,7 +62,9 @@ function buildMget (opts) {
   const snakeCase = {
     storedFields: 'stored_fields',
     _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
     _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
     errorTrace: 'error_trace',
     filterPath: 'filter_path'
   }
diff --git a/api/api/msearch.js b/api/api/msearch.js
index 668ec0a6f..fd1c89a06 100644
--- a/api/api/msearch.js
+++ b/api/api/msearch.js
@@ -29,7 +29,6 @@ function buildMsearch (opts) {
    * Perform a [msearch](http://www.elastic.co/guide/en/elasticsearch/reference/master/search-multi-search.html) request
    *
    * @param {list} index - A comma-separated list of index names to use as default
-   * @param {list} type - A comma-separated list of document types to use as default
    * @param {enum} search_type - Search operation type
    * @param {number} max_concurrent_searches - Controls the maximum number of concurrent searches the multi search api will execute
    * @param {boolean} typed_keys - Specify whether aggregation and suggester names should be prefixed by their respective types in the response
@@ -85,12 +84,6 @@ function buildMsearch (opts) {
       return handleError(err, callback)
     }
 
-    // check required url components
-    if (params['type'] != null && (params['index'] == null)) {
-      const err = new ConfigurationError('Missing required parameter of the url: index')
-      return handleError(err, callback)
-    }
-
     // validate headers object
     if (options.headers != null && typeof options.headers !== 'object') {
       const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
@@ -98,7 +91,7 @@ function buildMsearch (opts) {
     }
 
     var warnings = []
-    var { method, body, index, type, ...querystring } = params
+    var { method, body, index, ...querystring } = params
     querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
 
     if (method == null) {
@@ -112,9 +105,7 @@ function buildMsearch (opts) {
 
     var path = ''
 
-    if ((index) != null && (type) != null) {
-      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_msearch'
-    } else if ((index) != null) {
+    if ((index) != null) {
       path = '/' + encodeURIComponent(index) + '/' + '_msearch'
     } else {
       path = '/' + '_msearch'
diff --git a/api/api/msearch_template.js b/api/api/msearch_template.js
index 2a6cb3514..527de8da3 100644
--- a/api/api/msearch_template.js
+++ b/api/api/msearch_template.js
@@ -29,7 +29,6 @@ function buildMsearchTemplate (opts) {
    * Perform a [msearch_template](http://www.elastic.co/guide/en/elasticsearch/reference/current/search-multi-search.html) request
    *
    * @param {list} index - A comma-separated list of index names to use as default
-   * @param {list} type - A comma-separated list of document types to use as default
    * @param {enum} search_type - Search operation type
    * @param {boolean} typed_keys - Specify whether aggregation and suggester names should be prefixed by their respective types in the response
    * @param {number} max_concurrent_searches - Controls the maximum number of concurrent searches the multi search api will execute
@@ -79,12 +78,6 @@ function buildMsearchTemplate (opts) {
       return handleError(err, callback)
     }
 
-    // check required url components
-    if (params['type'] != null && (params['index'] == null)) {
-      const err = new ConfigurationError('Missing required parameter of the url: index')
-      return handleError(err, callback)
-    }
-
     // validate headers object
     if (options.headers != null && typeof options.headers !== 'object') {
       const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
@@ -92,7 +85,7 @@ function buildMsearchTemplate (opts) {
     }
 
     var warnings = []
-    var { method, body, index, type, ...querystring } = params
+    var { method, body, index, ...querystring } = params
     querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
 
     if (method == null) {
@@ -106,9 +99,7 @@ function buildMsearchTemplate (opts) {
 
     var path = ''
 
-    if ((index) != null && (type) != null) {
-      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_msearch' + '/' + 'template'
-    } else if ((index) != null) {
+    if ((index) != null) {
       path = '/' + encodeURIComponent(index) + '/' + '_msearch' + '/' + 'template'
     } else {
       path = '/' + '_msearch' + '/' + 'template'
diff --git a/api/api/mtermvectors.js b/api/api/mtermvectors.js
index 92d14c93c..4fee48798 100644
--- a/api/api/mtermvectors.js
+++ b/api/api/mtermvectors.js
@@ -29,7 +29,6 @@ function buildMtermvectors (opts) {
    * Perform a [mtermvectors](http://www.elastic.co/guide/en/elasticsearch/reference/master/docs-multi-termvectors.html) request
    *
    * @param {string} index - The index in which the document resides.
-   * @param {string} type - The type of the document.
    * @param {list} ids - A comma-separated list of documents ids. You must define ids as parameter or set "ids" or "docs" in the request body
    * @param {boolean} term_statistics - Specifies if total term frequency and document frequency should be returned. Applies to all returned documents unless otherwise specified in body "params" or "docs".
    * @param {boolean} field_statistics - Specifies if document count, sum of document frequencies and sum of total term frequencies should be returned. Applies to all returned documents unless otherwise specified in body "params" or "docs".
@@ -87,12 +86,6 @@ function buildMtermvectors (opts) {
       options = {}
     }
 
-    // check required url components
-    if (params['type'] != null && (params['index'] == null)) {
-      const err = new ConfigurationError('Missing required parameter of the url: index')
-      return handleError(err, callback)
-    }
-
     // validate headers object
     if (options.headers != null && typeof options.headers !== 'object') {
       const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
@@ -100,7 +93,7 @@ function buildMtermvectors (opts) {
     }
 
     var warnings = []
-    var { method, body, index, type, ...querystring } = params
+    var { method, body, index, ...querystring } = params
     querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
 
     if (method == null) {
@@ -114,9 +107,7 @@ function buildMtermvectors (opts) {
 
     var path = ''
 
-    if ((index) != null && (type) != null) {
-      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_mtermvectors'
-    } else if ((index) != null) {
+    if ((index) != null) {
       path = '/' + encodeURIComponent(index) + '/' + '_mtermvectors'
     } else {
       path = '/' + '_mtermvectors'
diff --git a/api/api/search.js b/api/api/search.js
index 6a1726ee0..885dd59b0 100644
--- a/api/api/search.js
+++ b/api/api/search.js
@@ -29,7 +29,6 @@ function buildSearch (opts) {
    * Perform a [search](http://www.elastic.co/guide/en/elasticsearch/reference/master/search-search.html) request
    *
    * @param {list} index - A comma-separated list of index names to search; use `_all` or empty string to perform the operation on all indices
-   * @param {list} type - A comma-separated list of document types to search; leave empty to perform the operation on all types
    * @param {string} analyzer - The analyzer to use for the query string
    * @param {boolean} analyze_wildcard - Specify whether wildcard and prefix queries should be analyzed (default: false)
    * @param {boolean} ccs_minimize_roundtrips - Indicates whether network round-trips should be minimized as part of cross-cluster search requests execution
@@ -99,7 +98,9 @@ function buildSearch (opts) {
     'sort',
     '_source',
     '_source_excludes',
+    '_source_exclude',
     '_source_includes',
+    '_source_include',
     'terminate_after',
     'stats',
     'suggest_field',
@@ -137,7 +138,9 @@ function buildSearch (opts) {
     expandWildcards: 'expand_wildcards',
     searchType: 'search_type',
     _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
     _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
     terminateAfter: 'terminate_after',
     suggestField: 'suggest_field',
     suggestMode: 'suggest_mode',
@@ -169,12 +172,6 @@ function buildSearch (opts) {
       options = {}
     }
 
-    // check required url components
-    if (params['type'] != null && (params['index'] == null)) {
-      const err = new ConfigurationError('Missing required parameter of the url: index')
-      return handleError(err, callback)
-    }
-
     // validate headers object
     if (options.headers != null && typeof options.headers !== 'object') {
       const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
@@ -182,7 +179,7 @@ function buildSearch (opts) {
     }
 
     var warnings = []
-    var { method, body, index, type, ...querystring } = params
+    var { method, body, index, ...querystring } = params
     querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
 
     if (method == null) {
@@ -196,9 +193,7 @@ function buildSearch (opts) {
 
     var path = ''
 
-    if ((index) != null && (type) != null) {
-      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_search'
-    } else if ((index) != null) {
+    if ((index) != null) {
       path = '/' + encodeURIComponent(index) + '/' + '_search'
     } else {
       path = '/' + '_search'
diff --git a/api/api/search_template.js b/api/api/search_template.js
index 5b6d53853..dc9431d05 100644
--- a/api/api/search_template.js
+++ b/api/api/search_template.js
@@ -29,7 +29,6 @@ function buildSearchTemplate (opts) {
    * Perform a [search_template](http://www.elastic.co/guide/en/elasticsearch/reference/current/search-template.html) request
    *
    * @param {list} index - A comma-separated list of index names to search; use `_all` or empty string to perform the operation on all indices
-   * @param {list} type - A comma-separated list of document types to search; leave empty to perform the operation on all types
    * @param {boolean} ignore_unavailable - Whether specified concrete indices should be ignored when unavailable (missing or closed)
    * @param {boolean} ignore_throttled - Whether specified concrete, expanded or aliased indices should be ignored when throttled
    * @param {boolean} allow_no_indices - Whether to ignore if a wildcard indices expression resolves into no concrete indices. (This includes `_all` string or when no indices have been specified)
@@ -98,12 +97,6 @@ function buildSearchTemplate (opts) {
       return handleError(err, callback)
     }
 
-    // check required url components
-    if (params['type'] != null && (params['index'] == null)) {
-      const err = new ConfigurationError('Missing required parameter of the url: index')
-      return handleError(err, callback)
-    }
-
     // validate headers object
     if (options.headers != null && typeof options.headers !== 'object') {
       const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
@@ -111,7 +104,7 @@ function buildSearchTemplate (opts) {
     }
 
     var warnings = []
-    var { method, body, index, type, ...querystring } = params
+    var { method, body, index, ...querystring } = params
     querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
 
     if (method == null) {
@@ -125,9 +118,7 @@ function buildSearchTemplate (opts) {
 
     var path = ''
 
-    if ((index) != null && (type) != null) {
-      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_search' + '/' + 'template'
-    } else if ((index) != null) {
+    if ((index) != null) {
       path = '/' + encodeURIComponent(index) + '/' + '_search' + '/' + 'template'
     } else {
       path = '/' + '_search' + '/' + 'template'
diff --git a/api/api/termvectors.js b/api/api/termvectors.js
index 93092d9f9..47c0ae4ea 100644
--- a/api/api/termvectors.js
+++ b/api/api/termvectors.js
@@ -29,7 +29,6 @@ function buildTermvectors (opts) {
    * Perform a [termvectors](http://www.elastic.co/guide/en/elasticsearch/reference/master/docs-termvectors.html) request
    *
    * @param {string} index - The index in which the document resides.
-   * @param {string} type - The type of the document.
    * @param {string} id - The id of the document, when not specified a doc param should be supplied.
    * @param {boolean} term_statistics - Specifies if total term frequency and document frequency should be returned.
    * @param {boolean} field_statistics - Specifies if document count, sum of document frequencies and sum of total term frequencies should be returned.
@@ -99,7 +98,7 @@ function buildTermvectors (opts) {
     }
 
     var warnings = []
-    var { method, body, index, type, id, ...querystring } = params
+    var { method, body, index, id, ...querystring } = params
     querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
 
     if (method == null) {
@@ -113,12 +112,8 @@ function buildTermvectors (opts) {
 
     var path = ''
 
-    if ((index) != null && (type) != null && (id) != null) {
-      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + encodeURIComponent(id) + '/' + '_termvectors'
-    } else if ((index) != null && (id) != null) {
+    if ((index) != null && (id) != null) {
       path = '/' + encodeURIComponent(index) + '/' + '_termvectors' + '/' + encodeURIComponent(id)
-    } else if ((index) != null && (type) != null) {
-      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_termvectors'
     } else {
       path = '/' + encodeURIComponent(index) + '/' + '_termvectors'
     }
diff --git a/api/api/update.js b/api/api/update.js
index 615a07aea..8059d3cb1 100644
--- a/api/api/update.js
+++ b/api/api/update.js
@@ -50,7 +50,9 @@ function buildUpdate (opts) {
     'wait_for_active_shards',
     '_source',
     '_source_excludes',
+    '_source_exclude',
     '_source_includes',
+    '_source_include',
     'lang',
     'parent',
     'refresh',
@@ -69,7 +71,9 @@ function buildUpdate (opts) {
   const snakeCase = {
     waitForActiveShards: 'wait_for_active_shards',
     _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
     _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
     retryOnConflict: 'retry_on_conflict',
     ifSeqNo: 'if_seq_no',
     ifPrimaryTerm: 'if_primary_term',
diff --git a/api/api/update_by_query.js b/api/api/update_by_query.js
index 7d7d7bc47..017262d33 100644
--- a/api/api/update_by_query.js
+++ b/api/api/update_by_query.js
@@ -29,7 +29,6 @@ function buildUpdateByQuery (opts) {
    * Perform a [update_by_query](https://www.elastic.co/guide/en/elasticsearch/reference/master/docs-update-by-query.html) request
    *
    * @param {list} index - A comma-separated list of index names to search; use `_all` or empty string to perform the operation on all indices
-   * @param {list} type - A comma-separated list of document types to search; leave empty to perform the operation on all types
    * @param {string} analyzer - The analyzer to use for the query string
    * @param {boolean} analyze_wildcard - Specify whether wildcard and prefix queries should be analyzed (default: false)
    * @param {enum} default_operator - The default operator for query string query (AND or OR)
@@ -89,7 +88,9 @@ function buildUpdateByQuery (opts) {
     'sort',
     '_source',
     '_source_excludes',
+    '_source_exclude',
     '_source_includes',
+    '_source_include',
     'terminate_after',
     'stats',
     'version',
@@ -118,7 +119,9 @@ function buildUpdateByQuery (opts) {
     searchType: 'search_type',
     searchTimeout: 'search_timeout',
     _sourceExcludes: '_source_excludes',
+    _sourceExclude: '_source_exclude',
     _sourceIncludes: '_source_includes',
+    _sourceInclude: '_source_include',
     terminateAfter: 'terminate_after',
     versionType: 'version_type',
     requestCache: 'request_cache',
@@ -148,12 +151,6 @@ function buildUpdateByQuery (opts) {
       return handleError(err, callback)
     }
 
-    // check required url components
-    if (params['type'] != null && (params['index'] == null)) {
-      const err = new ConfigurationError('Missing required parameter of the url: index')
-      return handleError(err, callback)
-    }
-
     // validate headers object
     if (options.headers != null && typeof options.headers !== 'object') {
       const err = new ConfigurationError(`Headers should be an object, instead got: ${typeof options.headers}`)
@@ -161,7 +158,7 @@ function buildUpdateByQuery (opts) {
     }
 
     var warnings = []
-    var { method, body, index, type, ...querystring } = params
+    var { method, body, index, ...querystring } = params
     querystring = snakeCaseKeys(acceptedQuerystring, snakeCase, querystring, warnings)
 
     if (method == null) {
@@ -175,11 +172,7 @@ function buildUpdateByQuery (opts) {
 
     var path = ''
 
-    if ((index) != null && (type) != null) {
-      path = '/' + encodeURIComponent(index) + '/' + encodeURIComponent(type) + '/' + '_update_by_query'
-    } else {
-      path = '/' + encodeURIComponent(index) + '/' + '_update_by_query'
-    }
+    path = '/' + encodeURIComponent(index) + '/' + '_update_by_query'
 
     // build request object
     const request = {
diff --git a/api/requestParams.d.ts b/api/requestParams.d.ts
index 5f1134da4..3afecde48 100644
--- a/api/requestParams.d.ts
+++ b/api/requestParams.d.ts
@@ -30,6 +30,8 @@ export interface Generic {
 export interface Bulk<T = any> extends Generic {
   index?: string;
   type?: string;
+  _source_exclude?: string | string[];
+  _source_include?: string | string[];
   wait_for_active_shards?: string;
   refresh?: 'true' | 'false' | 'wait_for';
   routing?: string;
@@ -387,7 +389,8 @@ export interface Delete extends Generic {
 
 export interface DeleteByQuery<T = any> extends Generic {
   index: string | string[];
-  type?: string | string[];
+  _source_exclude?: string | string[];
+  _source_include?: string | string[];
   analyzer?: string;
   analyze_wildcard?: boolean;
   default_operator?: 'AND' | 'OR';
@@ -438,6 +441,8 @@ export interface Exists extends Generic {
   id: string;
   index: string;
   type?: string;
+  _source_exclude?: string | string[];
+  _source_include?: string | string[];
   stored_fields?: string | string[];
   parent?: string;
   preference?: string;
@@ -455,6 +460,8 @@ export interface ExistsSource extends Generic {
   id: string;
   index: string;
   type?: string;
+  _source_exclude?: string | string[];
+  _source_include?: string | string[];
   parent?: string;
   preference?: string;
   realtime?: boolean;
@@ -471,6 +478,8 @@ export interface Explain<T = any> extends Generic {
   id: string;
   index: string;
   type?: string;
+  _source_exclude?: string | string[];
+  _source_include?: string | string[];
   analyze_wildcard?: boolean;
   analyzer?: string;
   default_operator?: 'AND' | 'OR';
@@ -500,6 +509,8 @@ export interface Get extends Generic {
   id: string;
   index: string;
   type?: string;
+  _source_exclude?: string | string[];
+  _source_include?: string | string[];
   stored_fields?: string | string[];
   parent?: string;
   preference?: string;
@@ -522,6 +533,8 @@ export interface GetSource extends Generic {
   id: string;
   index: string;
   type?: string;
+  _source_exclude?: string | string[];
+  _source_include?: string | string[];
   parent?: string;
   preference?: string;
   realtime?: boolean;
@@ -933,6 +946,8 @@ export interface IngestSimulate<T = any> extends Generic {
 export interface Mget<T = any> extends Generic {
   index?: string;
   type?: string;
+  _source_exclude?: string | string[];
+  _source_include?: string | string[];
   stored_fields?: string | string[];
   preference?: string;
   realtime?: boolean;
@@ -946,7 +961,6 @@ export interface Mget<T = any> extends Generic {
 
 export interface Msearch<T = any> extends Generic {
   index?: string | string[];
-  type?: string | string[];
   search_type?: 'query_then_fetch' | 'query_and_fetch' | 'dfs_query_then_fetch' | 'dfs_query_and_fetch';
   max_concurrent_searches?: number;
   typed_keys?: boolean;
@@ -959,7 +973,6 @@ export interface Msearch<T = any> extends Generic {
 
 export interface MsearchTemplate<T = any> extends Generic {
   index?: string | string[];
-  type?: string | string[];
   search_type?: 'query_then_fetch' | 'query_and_fetch' | 'dfs_query_then_fetch' | 'dfs_query_and_fetch';
   typed_keys?: boolean;
   max_concurrent_searches?: number;
@@ -970,7 +983,6 @@ export interface MsearchTemplate<T = any> extends Generic {
 
 export interface Mtermvectors<T = any> extends Generic {
   index?: string;
-  type?: string;
   ids?: string | string[];
   term_statistics?: boolean;
   field_statistics?: boolean;
@@ -1086,7 +1098,8 @@ export interface Scroll<T = any> extends Generic {
 
 export interface Search<T = any> extends Generic {
   index?: string | string[];
-  type?: string | string[];
+  _source_exclude?: string | string[];
+  _source_include?: string | string[];
   analyzer?: string;
   analyze_wildcard?: boolean;
   ccs_minimize_roundtrips?: boolean;
@@ -1144,7 +1157,6 @@ export interface SearchShards extends Generic {
 
 export interface SearchTemplate<T = any> extends Generic {
   index?: string | string[];
-  type?: string | string[];
   ignore_unavailable?: boolean;
   ignore_throttled?: boolean;
   allow_no_indices?: boolean;
@@ -1249,7 +1261,6 @@ export interface TasksList extends Generic {
 
 export interface Termvectors<T = any> extends Generic {
   index: string;
-  type?: string;
   id?: string;
   term_statistics?: boolean;
   field_statistics?: boolean;
@@ -1270,6 +1281,8 @@ export interface Update<T = any> extends Generic {
   id: string;
   index: string;
   type?: string;
+  _source_exclude?: string | string[];
+  _source_include?: string | string[];
   wait_for_active_shards?: string;
   _source?: string | string[];
   _source_excludes?: string | string[];
@@ -1287,7 +1300,8 @@ export interface Update<T = any> extends Generic {
 
 export interface UpdateByQuery<T = any> extends Generic {
   index: string | string[];
-  type?: string | string[];
+  _source_exclude?: string | string[];
+  _source_include?: string | string[];
   analyzer?: string;
   analyze_wildcard?: boolean;
   default_operator?: 'AND' | 'OR';
diff --git a/docs/reference.asciidoc b/docs/reference.asciidoc
index 3e2029d82..d9f1a3eca 100644
--- a/docs/reference.asciidoc
+++ b/docs/reference.asciidoc
@@ -1160,9 +1160,6 @@ link:{ref}/docs-delete-by-query.html[Reference]
 |`index`
 |`string, string[]` - A comma-separated list of index names to search; use `_all` or empty string to perform the operation on all indices
 
-|`type`
-|`string, string[]` - A comma-separated list of document types to search; leave empty to perform the operation on all types
-
 |`analyzer`
 |`string` - The analyzer to use for the query string
 
@@ -2930,9 +2927,6 @@ link:{ref}/search-multi-search.html[Reference]
 |`index`
 |`string, string[]` - A comma-separated list of index names to use as default
 
-|`type`
-|`string, string[]` - A comma-separated list of document types to use as default
-
 |`search_type` or `searchType`
 |`'query_then_fetch', 'query_and_fetch', 'dfs_query_then_fetch', 'dfs_query_and_fetch'` - Search operation type
 
@@ -2973,9 +2967,6 @@ link:{ref}/search-multi-search.html[Reference]
 |`index`
 |`string, string[]` - A comma-separated list of index names to use as default
 
-|`type`
-|`string, string[]` - A comma-separated list of document types to use as default
-
 |`search_type` or `searchType`
 |`'query_then_fetch', 'query_and_fetch', 'dfs_query_then_fetch', 'dfs_query_and_fetch'` - Search operation type
 
@@ -3008,9 +2999,6 @@ link:{ref}/docs-multi-termvectors.html[Reference]
 |`index`
 |`string` - The index in which the document resides.
 
-|`type`
-|`string` - The type of the document.
-
 |`ids`
 |`string, string[]` - A comma-separated list of documents ids. You must define ids as parameter or set "ids" or "docs" in the request body
 
@@ -3384,9 +3372,6 @@ link:{ref}/search-search.html[Reference]
 |`index`
 |`string, string[]` - A comma-separated list of index names to search; use `_all` or empty string to perform the operation on all indices
 
-|`type`
-|`string, string[]` - A comma-separated list of document types to search; leave empty to perform the operation on all types
-
 |`analyzer`
 |`string` - The analyzer to use for the query string
 
@@ -3569,9 +3554,6 @@ link:{ref}/search-template.html[Reference]
 |`index`
 |`string, string[]` - A comma-separated list of index names to search; use `_all` or empty string to perform the operation on all indices
 
-|`type`
-|`string, string[]` - A comma-separated list of document types to search; leave empty to perform the operation on all types
-
 |`ignore_unavailable` or `ignoreUnavailable`
 |`boolean` - Whether specified concrete indices should be ignored when unavailable (missing or closed)
 
@@ -3900,9 +3882,6 @@ link:{ref}/docs-termvectors.html[Reference]
 |`index`
 |`string` - The index in which the document resides.
 
-|`type`
-|`string` - The type of the document.
-
 |`id`
 |`string` - The id of the document, when not specified a doc param should be supplied.
 
@@ -4020,9 +3999,6 @@ link:{ref}/docs-update-by-query.html[Reference]
 |`index`
 |`string, string[]` - A comma-separated list of index names to search; use `_all` or empty string to perform the operation on all indices
 
-|`type`
-|`string, string[]` - A comma-separated list of document types to search; leave empty to perform the operation on all types
-
 |`analyzer`
 |`string` - The analyzer to use for the query string
 
diff --git a/scripts/generate.js b/scripts/generate.js
index df47b783e..79b7e2b17 100644
--- a/scripts/generate.js
+++ b/scripts/generate.js
@@ -69,7 +69,7 @@ function start (opts) {
 
     writeFileSync(
       requestParamsOutputFile,
-      generateRequestTypes(allSpec),
+      generateRequestTypes(opts.branch || opts.tag, allSpec),
       { encoding: 'utf8' }
     )
 
@@ -113,7 +113,7 @@ function start (opts) {
 
       const spec = require(join(apiFolder, file))
       allSpec.push(spec)
-      const code = generate(spec, common)
+      const code = generate(opts.branch || opts.tag, spec, common)
       const filePath = join(apiOutputFolder, `${file.slice(0, file.lastIndexOf('.'))}.js`)
 
       writeFileSync(filePath, code, { encoding: 'utf8' })
diff --git a/scripts/utils/generateApis.js b/scripts/utils/generateApis.js
index 0f48503e2..bde344e03 100644
--- a/scripts/utils/generateApis.js
+++ b/scripts/utils/generateApis.js
@@ -22,11 +22,16 @@
 'use strict'
 
 const dedent = require('dedent')
+const semver = require('semver')
 const allowedMethods = {
   noBody: ['GET', 'HEAD', 'DELETE'],
   body: ['POST', 'PUT', 'DELETE']
 }
 
+// if a parameter is depracted in a minor release
+// we should be able to support it until the next major
+const deprecatedParameters = require('./patch.json')
+
 // list of apis that does not need any kind of validation
 // because of how the url is built or the `type` handling in ES7
 const noPathValidation = [
@@ -63,7 +68,8 @@ const ndjsonApi = [
   'xpack.monitoring.bulk'
 ]
 
-function generate (spec, common) {
+function generate (version, spec, common) {
+  const release = semver.valid(version) ? semver.major(version) : version
   const api = Object.keys(spec)[0]
   const name = api
     .replace(/\.([a-z])/g, k => k[1].toUpperCase())
@@ -90,7 +96,11 @@ function generate (spec, common) {
     if (params[key].required) {
       required.push(key)
     }
+
     acceptedQuerystring.push(key)
+    if (deprecatedParameters[release] && deprecatedParameters[release][key]) {
+      acceptedQuerystring.push(deprecatedParameters[release][key])
+    }
   }
 
   for (const key in spec[api]) {
diff --git a/scripts/utils/generateRequestTypes.js b/scripts/utils/generateRequestTypes.js
index edba2fa68..b1e2bc72d 100644
--- a/scripts/utils/generateRequestTypes.js
+++ b/scripts/utils/generateRequestTypes.js
@@ -19,7 +19,11 @@
 
 'use strict'
 
-function generate (api) {
+const semver = require('semver')
+const deprecatedParameters = require('./patch.json')
+
+function generate (version, api) {
+  const release = semver.valid(version) ? semver.major(version) : version
   var types = `/*
  * Licensed to Elasticsearch B.V. under one or more contributor
  * license agreements. See the NOTICE file distributed with
@@ -64,9 +68,20 @@ export interface Generic {
 
     const partsArr = Object.keys(parts)
       .map(k => ({ key: k, value: parts[k] }))
+    const deprecatedParametersToAdd = []
     const paramsArr = Object.keys(params)
       .filter(k => !Object.keys(parts).includes(k))
-      .map(k => ({ key: k, value: params[k] }))
+      .map(k => {
+        if (deprecatedParameters[release] && deprecatedParameters[release][k]) {
+          deprecatedParametersToAdd.push({
+            key: deprecatedParameters[release][k],
+            value: params[k]
+          })
+        }
+        return { key: k, value: params[k] }
+      })
+
+    deprecatedParametersToAdd.forEach(k => partsArr.push(k))
 
     const genLine = e => {
       const optional = e.value.required ? '' : '?'
diff --git a/scripts/utils/patch.json b/scripts/utils/patch.json
new file mode 100644
index 000000000..392b305cb
--- /dev/null
+++ b/scripts/utils/patch.json
@@ -0,0 +1,14 @@
+{
+  "6": {
+    "_source_includes": "_source_include",
+    "_source_excludes": "_source_exclude"
+  },
+  "7": {
+    "_source_includes": "_source_include",
+    "_source_excludes": "_source_exclude"
+  },
+  "master": {
+    "_source_includes": "_source_include",
+    "_source_excludes": "_source_exclude"
+  }
+}