Merge remote-tracking branch 'elastic/master' into execute-actions-under-permit-primary-mode-only

* elastic/master:
  Revert "Remove 7.0.2 (elastic#42282)"
  [DOCS] Copied note on slicing support to Slicing section. Closes 26114 (elastic#40426)
  Remove 7.0.2 (elastic#42282)
  Mute all ml_datafeed_crud rolling upgrade tests

Author: jasontedor

docs/reference/docs/reindex.asciidoc

@@ -982,6 +982,10 @@ Reindex supports <<sliced-scroll>> to parallelize the reindexing process.
 This parallelization can improve efficiency and provide a convenient way to
 break the request down into smaller parts.
 
+NOTE: Reindexing from remote clusters does not support
+<<docs-reindex-manual-slice, manual>> or
+<<docs-reindex-automatic-slice, automatic slicing>>.
+
 [float]
 [[docs-reindex-manual-slice]]
 ==== Manual slicing

x-pack/qa/rolling-upgrade/src/test/resources/rest-api-spec/test/mixed_cluster/40_ml_datafeed_crud.yml

@@ -1,3 +1,8 @@
+setup:
+  - skip:
+      version: "all"
+      reason:  "AwaitsFix https://github.com/elastic/elasticsearch/issues/42258"
+
 ---
 "Test old cluster datafeed without aggs":
   - do:

x-pack/qa/rolling-upgrade/src/test/resources/rest-api-spec/test/old_cluster/40_ml_datafeed_crud.yml

@@ -1,3 +1,8 @@
+setup:
+  - skip:
+      version: "all"
+      reason:  "AwaitsFix https://github.com/elastic/elasticsearch/issues/42258"
+
 ---
 "Put job and datafeed without aggs in old cluster":
 

x-pack/qa/rolling-upgrade/src/test/resources/rest-api-spec/test/upgraded_cluster/40_ml_datafeed_crud.yml

@@ -1,4 +1,8 @@
 setup:
+  - skip:
+      version: "all"
+      reason:  "AwaitsFix https://github.com/elastic/elasticsearch/issues/42258"
+
   - do:
      cluster.health:
         wait_for_status: green