Merge branch '8.16' into backport/8.16/pr-196507

.buildkite/ftr_platform_stateful_configs.yml

@@ -39,6 +39,9 @@ disabled:
   - x-pack/test/fleet_cypress/config.space_awareness.ts
   - x-pack/test/fleet_cypress/visual_config.ts
 
+  # Default http2 config to use for performance journeys
+  - x-pack/performance/configs/http2_config.ts
+
 defaultQueue: 'n2-4-spot'
 enabled:
   - test/accessibility/config.ts
@@ -345,6 +348,7 @@ enabled:
   - x-pack/test/usage_collection/config.ts
   - x-pack/performance/journeys_e2e/aiops_log_rate_analysis.ts
   - x-pack/performance/journeys_e2e/ecommerce_dashboard.ts
+  - x-pack/performance/journeys_e2e/ecommerce_dashboard_http2.ts
   - x-pack/performance/journeys_e2e/ecommerce_dashboard_map_only.ts
   - x-pack/performance/journeys_e2e/flight_dashboard.ts
   - x-pack/performance/journeys_e2e/login.ts
@@ -358,6 +362,7 @@ enabled:
   - x-pack/performance/journeys_e2e/web_logs_dashboard_esql.ts
   - x-pack/performance/journeys_e2e/web_logs_dashboard_dataview.ts
   - x-pack/performance/journeys_e2e/data_stress_test_lens.ts
+  - x-pack/performance/journeys_e2e/data_stress_test_lens_http2.ts
   - x-pack/performance/journeys_e2e/ecommerce_dashboard_saved_search_only.ts
   - x-pack/performance/journeys_e2e/ecommerce_dashboard_tsvb_gauge_only.ts
   - x-pack/performance/journeys_e2e/dashboard_listing_page.ts

.buildkite/scripts/copy_es_snapshot_cache.sh

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# If cached snapshots are baked into the agent, copy them into our workspace first
+# We are doing this rather than simply changing the ES base path because many workers
+#   run with the workspace mounted in memory or on a local ssd
+cacheDir="$ES_CACHE_DIR/cache"
+if [[ -d "$cacheDir" ]]; then
+  mkdir -p .es/cache
+  echo "--- Copying ES snapshot cache"
+  echo "Copying cached snapshots from $cacheDir to .es/cache"
+  cp -R "$cacheDir"/* .es/cache/
+fi

.buildkite/scripts/steps/functional/common.sh

@@ -8,17 +8,7 @@ source .buildkite/scripts/common/util.sh
 
 .buildkite/scripts/bootstrap.sh
 .buildkite/scripts/download_build_artifacts.sh
-
-# If cached snapshots are baked into the agent, copy them into our workspace first
-# We are doing this rather than simply changing the ES base path because many workers
-#   run with the workspace mounted in memory or on a local ssd
-cacheDir="$ES_CACHE_DIR/cache"
-if [[ -d "$cacheDir" ]]; then
-  mkdir -p .es/cache
-  echo "--- Copying ES snapshot cache"
-  echo "Copying cached snapshots from $cacheDir to .es/cache"
-  cp -R "$cacheDir"/* .es/cache/
-fi
+.buildkite/scripts/copy_es_snapshot_cache.sh
 
 is_test_execution_step
 

.buildkite/scripts/steps/test/jest_integration.sh

@@ -7,6 +7,7 @@ source .buildkite/scripts/common/util.sh
 is_test_execution_step
 
 .buildkite/scripts/bootstrap.sh
+.buildkite/scripts/copy_es_snapshot_cache.sh
 
 echo '--- Jest Integration Tests'
 .buildkite/scripts/steps/test/jest_parallel.sh jest.integration.config.js

docs/CHANGELOG.asciidoc

@@ -237,6 +237,14 @@ you make the necessary updates after you upgrade to 8.15.0.
 The Uptime app is already hidden from Kibana when there is no recent Heartbeat data, but will be completely removed in 9.0.0. You should migrate to Synthetics as an alternative. For more details, refer to the {observability-guide}/uptime-intro.html[Uptime documentation].
 ====
 
+[discrete]
+.<<search-sessions,Search sessions>> are deprecated in 8.15.0 and will be removed in a future version.
+[%collapsible]
+====
+*Details* +
+Search sessions are now deprecated and will be removed in a future version. By default, queries that take longer than 10 minutes (the default for the advanced setting `search:timeout`) will be canceled. To allow queries to run longer, consider increasing `search:timeout` or setting it to `0` which will allow queries to continue running as long as a user is waiting on-screen for results.
+====
+
 [float]
 [[breaking-changes-8.15.0]]
 === Breaking changes

docs/api/spaces-management.asciidoc

@@ -1,38 +1,4 @@
-[role="xpack"]
 [[spaces-api]]
 == {kib} spaces APIs
 
-Manage your {kib} spaces.
-
-The following {kib} spaces APIs are available:
-
-* <<spaces-api-post, Create space API>> to create a {kib} space
-
-* <<spaces-api-put, Update space API>> to update an existing {kib} space
-
-* <<spaces-api-get, Get a space API>> to retrieve a specified {kib} space
-
-* <<spaces-api-get-all, Get all {kib} spaces API>> to retrieve all {kib} spaces
-
-* <<spaces-api-delete, Delete space API>> to delete a {kib} space
-
-* <<spaces-api-copy-saved-objects, Copy saved objects to space API>> to copy saved objects between spaces
-
-* <<spaces-api-resolve-copy-saved-objects-conflicts, Resolve copy saved objects to space conflicts API>> to overwrite saved objects returned as errors from the copy saved objects to space API
-
-* <<spaces-api-disable-legacy-url-aliases, Disable legacy URL aliases API>> to disable legacy URL aliases if an error is encountered
-
-* <<spaces-api-update-objects-spaces, Update saved objects spaces API>> to update one or more saved objects to add and/or remove them from specified spaces
-
-* <<spaces-api-get-shareable-references, Get shareable references API>> to collect references and spaces context for saved objects
-
-include::spaces-management/post.asciidoc[]
-include::spaces-management/put.asciidoc[]
-include::spaces-management/get.asciidoc[]
-include::spaces-management/get_all.asciidoc[]
-include::spaces-management/delete.asciidoc[]
-include::spaces-management/copy_saved_objects.asciidoc[]
-include::spaces-management/resolve_copy_saved_objects_conflicts.asciidoc[]
-include::spaces-management/disable_legacy_url_aliases.asciidoc[]
-include::spaces-management/update_objects_spaces.asciidoc[]
-include::spaces-management/get_shareable_references.asciidoc[]
+For the latest details, refer to {api-kibana}/group/endpoint-spaces[spaces APIs].