diff --git a/docs/reference.asciidoc b/docs/reference.asciidoc
index cf81b5988..174a46c4b 100644
--- a/docs/reference.asciidoc
+++ b/docs/reference.asciidoc
@@ -2483,7 +2483,6 @@ that uses deprecated components, Elasticsearch will emit a deprecation warning.
 ** *`create` (Optional, boolean)*: If `true`, this request cannot replace or update existing component templates.
 ** *`master_timeout` (Optional, string | -1 | 0)*: Period to wait for a connection to the master node.
 If no response is received before the timeout expires, the request fails and returns an error.
-** *`cause` (Optional, string)*
 
 [discrete]
 ==== put_settings
@@ -2814,7 +2813,7 @@ Executes an ESQL request
 {ref}/esql-rest.html[Endpoint documentation]
 [source,ts]
 ----
-client.esql.query({ query, version })
+client.esql.query({ query })
 ----
 
 [discrete]
@@ -2822,11 +2821,11 @@ client.esql.query({ query, version })
 
 * *Request (object):*
 ** *`query` (string)*: The ES|QL query API accepts an ES|QL query string in the query parameter, runs it, and returns the results.
-** *`version` (Enum("2024.04.01"))*: The version of the ES|QL language in which the "query" field was written.
 ** *`columnar` (Optional, boolean)*: By default, ES|QL returns results as rows. For example, FROM returns each individual document as one row. For the JSON, YAML, CBOR and smile formats, ES|QL can return the results in a columnar fashion where one row represents all the values of a certain column in the results.
 ** *`filter` (Optional, { bool, boosting, common, combined_fields, constant_score, dis_max, distance_feature, exists, function_score, fuzzy, geo_bounding_box, geo_distance, geo_polygon, geo_shape, has_child, has_parent, ids, intervals, knn, match, match_all, match_bool_prefix, match_none, match_phrase, match_phrase_prefix, more_like_this, multi_match, nested, parent_id, percolate, pinned, prefix, query_string, range, rank_feature, regexp, rule_query, script, script_score, shape, simple_query_string, span_containing, field_masking_span, span_first, span_multi, span_near, span_not, span_or, span_term, span_within, term, terms, terms_set, text_expansion, weighted_tokens, wildcard, wrapper, type })*: Specify a Query DSL query in the filter parameter to filter the set of documents that an ES|QL query runs on.
 ** *`locale` (Optional, string)*
 ** *`params` (Optional, number | number | string | boolean | null[])*: To avoid any attempts of hacking or code injection, extract the values in a separate list of parameters. Use question mark placeholders (?) in the query string for each of the parameters.
+** *`version` (Optional, Enum("2024.04.01"))*: The version of the ES|QL language in which the "query" field was written.
 ** *`format` (Optional, string)*: A short version of the Accept header, e.g. json, yaml.
 ** *`delimiter` (Optional, string)*: The character to use between values within a CSV row. Only valid for the CSV format.
 
@@ -4253,7 +4252,7 @@ a new date field is added instead of string.
 not used at all by Elasticsearch, but can be used to store
 application-specific metadata.
 ** *`numeric_detection` (Optional, boolean)*: Automatically map strings into numeric data types for all fields.
-** *`properties` (Optional, Record<string, { type } | { boost, fielddata, index, null_value, type } | { type, enabled, null_value, boost, coerce, script, on_script_error, ignore_malformed, time_series_metric, analyzer, eager_global_ordinals, index, index_options, index_phrases, index_prefixes, norms, position_increment_gap, search_analyzer, search_quote_analyzer, term_vector, format, precision_step, locale } | { relations, eager_global_ordinals, type } | { boost, eager_global_ordinals, index, index_options, normalizer, norms, null_value, split_queries_on_whitespace, time_series_dimension, type } | { type, fields, meta, copy_to } | { type } | { positive_score_impact, type } | { positive_score_impact, type } | { analyzer, index, index_options, max_shingle_size, norms, search_analyzer, search_quote_analyzer, term_vector, type } | { analyzer, boost, eager_global_ordinals, fielddata, fielddata_frequency_filter, index, index_options, index_phrases, index_prefixes, norms, position_increment_gap, search_analyzer, search_quote_analyzer, term_vector, type } | { type } | { type, null_value } | { boost, format, ignore_malformed, index, null_value, precision_step, type } | { boost, fielddata, format, ignore_malformed, index, null_value, precision_step, locale, type } | { type, default_metric, metrics, time_series_metric } | { type, dims, similarity, index, index_options } | { type } | { boost, depth_limit, doc_values, eager_global_ordinals, index, index_options, null_value, similarity, split_queries_on_whitespace, type } | { enabled, include_in_parent, include_in_root, type } | { enabled, subobjects, type } | { analyzer, contexts, max_input_length, preserve_position_increments, preserve_separators, search_analyzer, type } | { value, type } | { path, type } | { ignore_malformed, type } | { boost, index, ignore_malformed, null_value, on_script_error, script, time_series_dimension, type } | { type } | { analyzer, boost, index, null_value, enable_position_increments, type } | { ignore_malformed, ignore_z_value, null_value, index, on_script_error, script, type } | { coerce, ignore_malformed, ignore_z_value, orientation, strategy, type } | { ignore_malformed, ignore_z_value, null_value, type } | { coerce, ignore_malformed, ignore_z_value, orientation, type } | { type, null_value } | { type, null_value } | { type, null_value } | { type, null_value } | { type, null_value } | { type, null_value } | { type, null_value, scaling_factor } | { type, null_value } | { type, null_value } | { format, type } | { type } | { type } | { type } | { type } | { type }>)*: Mapping for a field. For new fields, this mapping can include:
+** *`properties` (Optional, Record<string, { type } | { boost, fielddata, index, null_value, type } | { type, enabled, null_value, boost, coerce, script, on_script_error, ignore_malformed, time_series_metric, analyzer, eager_global_ordinals, index, index_options, index_phrases, index_prefixes, norms, position_increment_gap, search_analyzer, search_quote_analyzer, term_vector, format, precision_step, locale } | { relations, eager_global_ordinals, type } | { boost, eager_global_ordinals, index, index_options, normalizer, norms, null_value, split_queries_on_whitespace, time_series_dimension, type } | { type, fields, meta, copy_to } | { type } | { positive_score_impact, type } | { positive_score_impact, type } | { analyzer, index, index_options, max_shingle_size, norms, search_analyzer, search_quote_analyzer, term_vector, type } | { analyzer, boost, eager_global_ordinals, fielddata, fielddata_frequency_filter, index, index_options, index_phrases, index_prefixes, norms, position_increment_gap, search_analyzer, search_quote_analyzer, term_vector, type } | { type } | { type, null_value } | { boost, format, ignore_malformed, index, null_value, precision_step, type } | { boost, fielddata, format, ignore_malformed, index, null_value, precision_step, locale, type } | { type, default_metric, metrics, time_series_metric } | { type, element_type, dims, similarity, index, index_options } | { type } | { boost, depth_limit, doc_values, eager_global_ordinals, index, index_options, null_value, similarity, split_queries_on_whitespace, type } | { enabled, include_in_parent, include_in_root, type } | { enabled, subobjects, type } | { analyzer, contexts, max_input_length, preserve_position_increments, preserve_separators, search_analyzer, type } | { value, type } | { path, type } | { ignore_malformed, type } | { boost, index, ignore_malformed, null_value, on_script_error, script, time_series_dimension, type } | { type } | { analyzer, boost, index, null_value, enable_position_increments, type } | { ignore_malformed, ignore_z_value, null_value, index, on_script_error, script, type } | { coerce, ignore_malformed, ignore_z_value, orientation, strategy, type } | { ignore_malformed, ignore_z_value, null_value, type } | { coerce, ignore_malformed, ignore_z_value, orientation, type } | { type, null_value } | { type, null_value } | { type, null_value } | { type, null_value } | { type, null_value } | { type, null_value } | { type, null_value, scaling_factor } | { type, null_value } | { type, null_value } | { format, type } | { type } | { type } | { type } | { type } | { type }>)*: Mapping for a field. For new fields, this mapping can include:
 
 - Field name
 - Field data type
diff --git a/src/api/api/esql.ts b/src/api/api/esql.ts
index 62a4925b8..fa6af3b3d 100644
--- a/src/api/api/esql.ts
+++ b/src/api/api/esql.ts
@@ -63,6 +63,12 @@ export default class Esql {
       body = userBody != null ? { ...userBody } : undefined
     }
 
+    // a version number is required for all ES|QL queries.
+    // inject a default value if none is provided.
+    if (typeof body === 'object' && body.version == null) {
+      body.version = '2024.04.01'
+    }
+
     for (const key in params) {
       if (acceptedBody.includes(key)) {
         body = body ?? {}
diff --git a/src/api/types.ts b/src/api/types.ts
index 897ce242a..727cf64e0 100644
--- a/src/api/types.ts
+++ b/src/api/types.ts
@@ -2760,7 +2760,7 @@ export interface WriteResponseBase {
   _index: IndexName
   _primary_term?: long
   result: Result
-  _seq_no: SequenceNumber
+  _seq_no?: SequenceNumber
   _shards: ShardStatistics
   _version: VersionNumber
   forced_refresh?: boolean
@@ -2787,6 +2787,7 @@ export interface AggregationsAdjacencyMatrixAggregate extends AggregationsMultiB
 
 export interface AggregationsAdjacencyMatrixAggregation extends AggregationsBucketAggregationBase {
   filters?: Record<string, QueryDslQueryContainer>
+  separator?: string
 }
 
 export interface AggregationsAdjacencyMatrixBucketKeys extends AggregationsMultiBucketBase {
@@ -4901,6 +4902,7 @@ export interface MappingDenseVectorIndexOptions {
 
 export interface MappingDenseVectorProperty extends MappingPropertyBase {
   type: 'dense_vector'
+  element_type?: string
   dims?: integer
   similarity?: string
   index?: boolean
@@ -8584,7 +8586,6 @@ export interface ClusterPutComponentTemplateRequest extends RequestBase {
   name: Name
   create?: boolean
   master_timeout?: Duration
-  cause?: string
   template: IndicesIndexState
   version?: VersionNumber
   _meta?: Metadata
@@ -9662,7 +9663,7 @@ export interface EsqlQueryRequest extends RequestBase {
   locale?: string
   params?: ScalarValue[]
   query: string
-  version: EsqlEsqlVersion
+  version?: EsqlEsqlVersion
 }
 
 export type EsqlQueryResponse = EsqlColumns
@@ -12186,6 +12187,7 @@ export interface IngestProcessorContainer {
 
 export interface IngestRemoveProcessor extends IngestProcessorBase {
   field: Fields
+  keep?: Fields
   ignore_missing?: boolean
 }
 
diff --git a/src/api/typesWithBodyKey.ts b/src/api/typesWithBodyKey.ts
index 46603df9a..d81f07d6b 100644
--- a/src/api/typesWithBodyKey.ts
+++ b/src/api/typesWithBodyKey.ts
@@ -2833,7 +2833,7 @@ export interface WriteResponseBase {
   _index: IndexName
   _primary_term?: long
   result: Result
-  _seq_no: SequenceNumber
+  _seq_no?: SequenceNumber
   _shards: ShardStatistics
   _version: VersionNumber
   forced_refresh?: boolean
@@ -2860,6 +2860,7 @@ export interface AggregationsAdjacencyMatrixAggregate extends AggregationsMultiB
 
 export interface AggregationsAdjacencyMatrixAggregation extends AggregationsBucketAggregationBase {
   filters?: Record<string, QueryDslQueryContainer>
+  separator?: string
 }
 
 export interface AggregationsAdjacencyMatrixBucketKeys extends AggregationsMultiBucketBase {
@@ -4974,6 +4975,7 @@ export interface MappingDenseVectorIndexOptions {
 
 export interface MappingDenseVectorProperty extends MappingPropertyBase {
   type: 'dense_vector'
+  element_type?: string
   dims?: integer
   similarity?: string
   index?: boolean
@@ -8676,7 +8678,6 @@ export interface ClusterPutComponentTemplateRequest extends RequestBase {
   name: Name
   create?: boolean
   master_timeout?: Duration
-  cause?: string
   /** @deprecated The use of the 'body' key has been deprecated, move the nested keys to the top level object. */
   body?: {
     template: IndicesIndexState
@@ -9819,7 +9820,7 @@ export interface EsqlQueryRequest extends RequestBase {
     locale?: string
     params?: ScalarValue[]
     query: string
-    version: EsqlEsqlVersion
+    version?: EsqlEsqlVersion
   }
 }
 
@@ -12411,6 +12412,7 @@ export interface IngestProcessorContainer {
 
 export interface IngestRemoveProcessor extends IngestProcessorBase {
   field: Fields
+  keep?: Fields
   ignore_missing?: boolean
 }