diff --git a/client/rest-high-level/src/test/java/org/elasticsearch/client/IndicesClientIT.java b/client/rest-high-level/src/test/java/org/elasticsearch/client/IndicesClientIT.java
index 931447d85d4..88e4a256815 100644
--- a/client/rest-high-level/src/test/java/org/elasticsearch/client/IndicesClientIT.java
+++ b/client/rest-high-level/src/test/java/org/elasticsearch/client/IndicesClientIT.java
@@ -642,7 +642,12 @@ public class IndicesClientIT extends ESRestHighLevelClientTestCase {
 
         ResizeRequest resizeRequest = new ResizeRequest("target", "source");
         resizeRequest.setResizeType(ResizeType.SHRINK);
-        Settings targetSettings = Settings.builder().put("index.number_of_shards", 2).put("index.number_of_replicas", 0).build();
+        Settings targetSettings =
+                Settings.builder()
+                        .put("index.number_of_shards", 2)
+                        .put("index.number_of_replicas", 0)
+                        .putNull("index.routing.allocation.require._name")
+                        .build();
         resizeRequest.setTargetIndex(new CreateIndexRequest("target").settings(targetSettings).alias(new Alias("alias")));
         ResizeResponse resizeResponse = highLevelClient().indices().shrink(resizeRequest);
         assertTrue(resizeResponse.isAcknowledged());
diff --git a/client/rest-high-level/src/test/java/org/elasticsearch/client/documentation/IndicesClientDocumentationIT.java b/client/rest-high-level/src/test/java/org/elasticsearch/client/documentation/IndicesClientDocumentationIT.java
index 1dd9834d8f5..38a963fa33c 100644
--- a/client/rest-high-level/src/test/java/org/elasticsearch/client/documentation/IndicesClientDocumentationIT.java
+++ b/client/rest-high-level/src/test/java/org/elasticsearch/client/documentation/IndicesClientDocumentationIT.java
@@ -1305,7 +1305,8 @@ public class IndicesClientDocumentationIT extends ESRestHighLevelClientTestCase
         // end::shrink-index-request-waitForActiveShards
         // tag::shrink-index-request-settings
         request.getTargetIndexRequest().settings(Settings.builder()
-                .put("index.number_of_shards", 2)); // <1>
+                .put("index.number_of_shards", 2) // <1>
+                .putNull("index.routing.allocation.require._name")); // <2>
         // end::shrink-index-request-settings
         // tag::shrink-index-request-aliases
         request.getTargetIndexRequest().alias(new Alias("target_alias")); // <1>
diff --git a/docs/java-rest/high-level/indices/shrink_index.asciidoc b/docs/java-rest/high-level/indices/shrink_index.asciidoc
index 31827964631..5bef7a561a6 100644
--- a/docs/java-rest/high-level/indices/shrink_index.asciidoc
+++ b/docs/java-rest/high-level/indices/shrink_index.asciidoc
@@ -45,8 +45,8 @@ returns a response, as an `ActiveShardCount`
 --------------------------------------------------
 include-tagged::{doc-tests}/IndicesClientDocumentationIT.java[shrink-index-request-settings]
 --------------------------------------------------
-<1> The settings to apply to the target index, which include the number of
-shards to create for it
+<1> The number of shards on the target of the shrink index request
+<2> Remove the allocation requirement copied from the source index
 
 ["source","java",subs="attributes,callouts,macros"]
 --------------------------------------------------
diff --git a/docs/reference/indices/shrink-index.asciidoc b/docs/reference/indices/shrink-index.asciidoc
index 34e90e6799d..24a67208f72 100644
--- a/docs/reference/indices/shrink-index.asciidoc
+++ b/docs/reference/indices/shrink-index.asciidoc
@@ -62,7 +62,7 @@ the following request:
 
 [source,js]
 --------------------------------------------------
-POST my_source_index/_shrink/my_target_index?copy_settings=true
+POST my_source_index/_shrink/my_target_index
 {
   "settings": {
     "index.routing.allocation.require._name": null, <1>
@@ -106,7 +106,7 @@ and accepts `settings` and `aliases` parameters for the target index:
 
 [source,js]
 --------------------------------------------------
-POST my_source_index/_shrink/my_target_index?copy_settings=true
+POST my_source_index/_shrink/my_target_index
 {
   "settings": {
     "index.number_of_replicas": 1,
@@ -130,16 +130,6 @@ POST my_source_index/_shrink/my_target_index?copy_settings=true
 
 NOTE: Mappings may not be specified in the `_shrink` request.
 
-NOTE: By default, with the exception of `index.analysis`, `index.similarity`,
-and `index.sort` settings, index settings on the source index are not copied
-during a shrink operation. With the exception of non-copyable settings, settings
-from the source index can be copied to the target index by adding the URL
-parameter `copy_settings=true` to the request. Note that `copy_settings` can not
-be set to `false`. The parameter `copy_settings` will be removed in 8.0.0
-
-deprecated[6.4.0, not copying settings is deprecated, copying settings will be
-the default behavior in 7.x]
-
 [float]
 === Monitoring the shrink process
 
diff --git a/docs/reference/indices/split-index.asciidoc b/docs/reference/indices/split-index.asciidoc
index aaed23459c3..ade0a8075d5 100644
--- a/docs/reference/indices/split-index.asciidoc
+++ b/docs/reference/indices/split-index.asciidoc
@@ -123,7 +123,7 @@ the following request:
 
 [source,js]
 --------------------------------------------------
-POST my_source_index/_split/my_target_index?copy_settings=true
+POST my_source_index/_split/my_target_index
 {
   "settings": {
     "index.number_of_shards": 2
@@ -158,7 +158,7 @@ and accepts `settings` and `aliases` parameters for the target index:
 
 [source,js]
 --------------------------------------------------
-POST my_source_index/_split/my_target_index?copy_settings=true
+POST my_source_index/_split/my_target_index
 {
   "settings": {
     "index.number_of_shards": 5 <1>
@@ -177,16 +177,6 @@ POST my_source_index/_split/my_target_index?copy_settings=true
 
 NOTE: Mappings may not be specified in the `_split` request.
 
-NOTE: By default, with the exception of `index.analysis`, `index.similarity`,
-and `index.sort` settings, index settings on the source index are not copied
-during a split operation. With the exception of non-copyable settings, settings
-from the source index can be copied to the target index by adding the URL
-parameter `copy_settings=true` to the request. Note that `copy_settings` can not
-be set to `false`. The parameter `copy_settings` will be removed in 8.0.0
-
-deprecated[6.4.0, not copying settings is deprecated, copying settings will be
-the default behavior in 7.x]
-
 [float]
 === Monitoring the split process
 
diff --git a/docs/reference/migration/migrate_7_0/api.asciidoc b/docs/reference/migration/migrate_7_0/api.asciidoc
index e140fd577bd..3d824c60064 100644
--- a/docs/reference/migration/migrate_7_0/api.asciidoc
+++ b/docs/reference/migration/migrate_7_0/api.asciidoc
@@ -65,3 +65,13 @@ deprecated in 6.3.0 and now removed in 7.0.0.
 In the past, `fields` could be provided either as a parameter, or as part of the request
 body. Specifying `fields` in the request body as opposed to a parameter was deprecated
 in 6.4.0, and is now unsupported in 7.0.0.
+
+==== `copy_settings` is deprecated on shrink and split APIs
+
+Versions of Elasticsearch prior to 6.4.0 did not copy index settings on shrink
+and split operations. Starting with Elasticsearch 7.0.0, the default behavior
+will be for such settings to be copied on such operations. To enable users in
+6.4.0 to transition in 6.4.0 to the default behavior in 7.0.0, the
+`copy_settings` parameter was added on the REST layer. As this behavior will be
+the only behavior in 8.0.0, this parameter is deprecated in 7.0.0 for removal in
+8.0.0.
diff --git a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/10_basic.yml b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/10_basic.yml
index f94cf286fd8..bfd3fc58fdf 100644
--- a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/10_basic.yml
+++ b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/10_basic.yml
@@ -1,8 +1,8 @@
 ---
 "Shrink index via API":
   - skip:
-      version: " - 6.3.99"
-      reason: expects warnings that pre-6.4.0 will not send
+      version: " - 6.9.99"
+      reason: expects warnings that pre-7.0.0 will not send
       features: "warnings"
   # creates an index with one document solely allocated on the master node
   # and shrinks it into a new index with a single shard
@@ -67,8 +67,6 @@
         body:
           settings:
             index.number_of_replicas: 0
-      warnings:
-        - "resize operations without copying settings is deprecated; set parameter [copy_settings] to [true] for future default behavior"
 
   - do:
       cluster.health:
diff --git a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/20_source_mapping.yml b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/20_source_mapping.yml
index 6f532ff81c6..2e7a13b38e1 100644
--- a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/20_source_mapping.yml
+++ b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/20_source_mapping.yml
@@ -1,8 +1,8 @@
 ---
 "Shrink index ignores target template mapping":
     - skip:
-        version: " - 6.3.99"
-        reason: expects warnings that pre-6.4.0 will not send
+        version: " - 6.9.99"
+        reason: expects warnings that pre-7.0.0 will not send
         features: "warnings"
 
     - do:
@@ -71,8 +71,6 @@
           body:
             settings:
               index.number_of_replicas: 0
-        warnings:
-          - "resize operations without copying settings is deprecated; set parameter [copy_settings] to [true] for future default behavior"
 
     - do:
         cluster.health:
diff --git a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/30_copy_settings.yml b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/30_copy_settings.yml
index 53a12aad787..8c4c84c4be1 100644
--- a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/30_copy_settings.yml
+++ b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.shrink/30_copy_settings.yml
@@ -1,8 +1,8 @@
 ---
 "Copy settings during shrink index":
   - skip:
-      version: " - 6.3.99"
-      reason: expects warnings that pre-6.4.0 will not send
+      version: " - 6.9.99"
+      reason: expects warnings that pre-7.0.0 will not send
       features: "warnings"
 
   - do:
@@ -48,6 +48,8 @@
           settings:
             index.number_of_replicas: 0
             index.merge.scheduler.max_thread_count: 2
+      warnings:
+        - "parameter [copy_settings] is deprecated and will be removed in 8.0.0"
 
   - do:
       cluster.health:
@@ -63,19 +65,17 @@
   - match: { copy-settings-target.settings.index.blocks.write: "true" }
   - match: { copy-settings-target.settings.index.routing.allocation.include._id: $master }
 
-  # now we do a actual shrink and do not copy settings (by default)
+  # now we do a actual shrink and copy settings (by default)
   - do:
       indices.shrink:
         index: "source"
-        target: "no-copy-settings-target"
+        target: "default-copy-settings-target"
         wait_for_active_shards: 1
         master_timeout: 10s
         body:
           settings:
             index.number_of_replicas: 0
             index.merge.scheduler.max_thread_count: 2
-      warnings:
-        - "resize operations without copying settings is deprecated; set parameter [copy_settings] to [true] for future default behavior"
 
   - do:
       cluster.health:
@@ -83,13 +83,13 @@
 
   - do:
       indices.get_settings:
-        index: "no-copy-settings-target"
+        index: "default-copy-settings-target"
 
-  # only the request setting should be copied
-  - is_false: no-copy-settings-target.settings.index.merge.scheduler.max_merge_count
-  - match: { no-copy-settings-target.settings.index.merge.scheduler.max_thread_count: "2" }
-  - is_false: no-copy-settings-target.settings.index.blocks.write
-  - is_false: no-copy-settings-target.settings.index.routing.allocation.include._id
+  # settings should be copied
+  - match: { default-copy-settings-target.settings.index.merge.scheduler.max_merge_count: "4" }
+  - match: { default-copy-settings-target.settings.index.merge.scheduler.max_thread_count: "2" }
+  - match: { default-copy-settings-target.settings.index.blocks.write: "true" }
+  - match: { default-copy-settings-target.settings.index.routing.allocation.include._id: $master }
 
   # now we do a actual shrink and try to set no copy settings
   - do:
diff --git a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/10_basic.yml b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/10_basic.yml
index 8cfe77042dd..74774f13e21 100644
--- a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/10_basic.yml
+++ b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/10_basic.yml
@@ -33,8 +33,8 @@ setup:
 ---
 "Split index via API":
   - skip:
-      version: " - 6.3.99"
-      reason: expects warnings that pre-6.4.0 will not send
+      version: " - 6.9.99"
+      reason: pre-7.0.0 will send warnings
       features: "warnings"
 
   # make it read-only
@@ -61,8 +61,6 @@ setup:
           settings:
             index.number_of_replicas: 0
             index.number_of_shards: 4
-      warnings:
-        - "resize operations without copying settings is deprecated; set parameter [copy_settings] to [true] for future default behavior"
 
   - do:
       cluster.health:
@@ -108,8 +106,7 @@ setup:
 "Split from 1 to N":
   - skip:
       version: " - 6.99.99"
-      reason: Automatic preparation for splitting was added in 7.0.0
-      features: "warnings"
+      reason: automatic preparation for splitting was added in 7.0.0
   - do:
       indices.create:
         index: source_one_shard
@@ -163,8 +160,6 @@ setup:
           settings:
             index.number_of_replicas: 0
             index.number_of_shards: 5
-      warnings:
-        - "resize operations without copying settings is deprecated; set parameter [copy_settings] to [true] for future default behavior"
 
   - do:
       cluster.health:
@@ -205,13 +200,11 @@ setup:
   - match: { _id:      "3"     }
   - match: { _source:  { foo: "hello world 3" } }
 
-
-
 ---
 "Create illegal split indices":
   - skip:
-      version: " - 6.3.99"
-      reason: expects warnings that pre-6.4.0 will not send
+      version: " - 6.9.99"
+      reason: pre-7.0.0 will send warnings
       features: "warnings"
 
   # try to do an illegal split with number_of_routing_shards set
@@ -227,8 +220,6 @@ setup:
             index.number_of_replicas: 0
             index.number_of_shards: 4
             index.number_of_routing_shards: 8
-      warnings:
-        - "resize operations without copying settings is deprecated; set parameter [copy_settings] to [true] for future default behavior"
 
   # try to do an illegal split with illegal number_of_shards
   - do:
@@ -242,5 +233,3 @@ setup:
           settings:
             index.number_of_replicas: 0
             index.number_of_shards: 6
-      warnings:
-        - "resize operations without copying settings is deprecated; set parameter [copy_settings] to [true] for future default behavior"
diff --git a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/20_source_mapping.yml b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/20_source_mapping.yml
index 88d3f3c6102..727e1e374ba 100644
--- a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/20_source_mapping.yml
+++ b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/20_source_mapping.yml
@@ -1,8 +1,8 @@
 ---
 "Split index ignores target template mapping":
   - skip:
-      version: " - 6.3.99"
-      reason: expects warnings that pre-6.4.0 will not send
+      version: " - 6.9.99"
+      reason: pre-7.0.0 will send warnings
       features: "warnings"
 
   # create index
@@ -65,8 +65,6 @@
           settings:
             index.number_of_shards: 2
             index.number_of_replicas: 0
-      warnings:
-        - "resize operations without copying settings is deprecated; set parameter [copy_settings] to [true] for future default behavior"
 
   - do:
       cluster.health:
diff --git a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/30_copy_settings.yml b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/30_copy_settings.yml
index 9e64b2b8130..90d4080e463 100644
--- a/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/30_copy_settings.yml
+++ b/rest-api-spec/src/main/resources/rest-api-spec/test/indices.split/30_copy_settings.yml
@@ -1,8 +1,8 @@
 ---
 "Copy settings during split index":
   - skip:
-      version: " - 6.3.99"
-      reason: expects warnings that pre-6.4.0 will not send
+      version: " - 6.9.99"
+      reason: expects warnings that pre-7.0.0 will not send
       features: "warnings"
 
   - do:
@@ -50,6 +50,9 @@
             index.number_of_replicas: 0
             index.number_of_shards: 2
             index.merge.scheduler.max_thread_count: 2
+      warnings:
+        - "parameter [copy_settings] is deprecated and will be removed in 8.0.0"
+
 
   - do:
       cluster.health:
@@ -65,11 +68,11 @@
   - match: { copy-settings-target.settings.index.blocks.write: "true" }
   - match: { copy-settings-target.settings.index.routing.allocation.include._id: $master }
 
-  # now we do a actual shrink and do not copy settings (by default)
+  # now we do a actual shrink and copy settings (by default)
   - do:
       indices.split:
         index: "source"
-        target: "no-copy-settings-target"
+        target: "default-copy-settings-target"
         wait_for_active_shards: 1
         master_timeout: 10s
         body:
@@ -77,8 +80,6 @@
             index.number_of_replicas: 0
             index.number_of_shards: 2
             index.merge.scheduler.max_thread_count: 2
-      warnings:
-        - "resize operations without copying settings is deprecated; set parameter [copy_settings] to [true] for future default behavior"
 
   - do:
       cluster.health:
@@ -86,13 +87,13 @@
 
   - do:
       indices.get_settings:
-        index: "no-copy-settings-target"
+        index: "default-copy-settings-target"
 
-  # only the request setting should be copied
-  - is_false: no-copy-settings-target.settings.index.merge.scheduler.max_merge_count
-  - match: { no-copy-settings-target.settings.index.merge.scheduler.max_thread_count: "2" }
-  - is_false: no-copy-settings-target.settings.index.blocks.write
-  - is_false: no-copy-settings-target.settings.index.routing.allocation.include._id
+  # settings should be copied
+  - match: { default-copy-settings-target.settings.index.merge.scheduler.max_merge_count: "4" }
+  - match: { default-copy-settings-target.settings.index.merge.scheduler.max_thread_count: "2" }
+  - match: { default-copy-settings-target.settings.index.blocks.write: "true" }
+  - match: { default-copy-settings-target.settings.index.routing.allocation.include._id: $master }
 
   - do:
       catch: /illegal_argument_exception/
diff --git a/server/src/main/java/org/elasticsearch/action/admin/indices/shrink/ResizeRequest.java b/server/src/main/java/org/elasticsearch/action/admin/indices/shrink/ResizeRequest.java
index ca046c48acc..eb95a2455b2 100644
--- a/server/src/main/java/org/elasticsearch/action/admin/indices/shrink/ResizeRequest.java
+++ b/server/src/main/java/org/elasticsearch/action/admin/indices/shrink/ResizeRequest.java
@@ -56,7 +56,7 @@ public class ResizeRequest extends AcknowledgedRequest<ResizeRequest> implements
     private CreateIndexRequest targetIndexRequest;
     private String sourceIndex;
     private ResizeType type = ResizeType.SHRINK;
-    private Boolean copySettings;
+    private Boolean copySettings = true;
 
     ResizeRequest() {}
 
diff --git a/server/src/main/java/org/elasticsearch/rest/action/admin/indices/RestResizeHandler.java b/server/src/main/java/org/elasticsearch/rest/action/admin/indices/RestResizeHandler.java
index bc5db552b9d..9444563d1c6 100644
--- a/server/src/main/java/org/elasticsearch/rest/action/admin/indices/RestResizeHandler.java
+++ b/server/src/main/java/org/elasticsearch/rest/action/admin/indices/RestResizeHandler.java
@@ -51,18 +51,16 @@ public abstract class RestResizeHandler extends BaseRestHandler {
         final Boolean copySettings;
         if (rawCopySettings == null) {
             copySettings = resizeRequest.getCopySettings();
-        } else if (rawCopySettings.isEmpty()) {
-            copySettings = true;
         } else {
-            copySettings = Booleans.parseBoolean(rawCopySettings);
-            if (copySettings == false) {
-                throw new IllegalArgumentException("parameter [copy_settings] can not be explicitly set to [false]");
+            if (rawCopySettings.isEmpty()) {
+                copySettings = true;
+            } else {
+                copySettings = Booleans.parseBoolean(rawCopySettings);
+                if (copySettings == false) {
+                    throw new IllegalArgumentException("parameter [copy_settings] can not be explicitly set to [false]");
+                }
             }
-        }
-        if (copySettings == null) {
-            deprecationLogger.deprecated(
-                    "resize operations without copying settings is deprecated; "
-                            + "set parameter [copy_settings] to [true] for future default behavior");
+            deprecationLogger.deprecated("parameter [copy_settings] is deprecated and will be removed in 8.0.0");
         }
         resizeRequest.setCopySettings(copySettings);
         request.applyContentParser(resizeRequest::fromXContent);
diff --git a/server/src/test/java/org/elasticsearch/action/admin/indices/create/ShrinkIndexIT.java b/server/src/test/java/org/elasticsearch/action/admin/indices/create/ShrinkIndexIT.java
index d89a8a134ff..4f0fd78f311 100644
--- a/server/src/test/java/org/elasticsearch/action/admin/indices/create/ShrinkIndexIT.java
+++ b/server/src/test/java/org/elasticsearch/action/admin/indices/create/ShrinkIndexIT.java
@@ -113,9 +113,11 @@ public class ShrinkIndexIT extends ESIntegTestCase {
         ensureGreen();
         // now merge source into a 4 shard index
         assertAcked(client().admin().indices().prepareResizeIndex("source", "first_shrink")
-            .setSettings(Settings.builder()
-                .put("index.number_of_replicas", 0)
-                .put("index.number_of_shards", shardSplits[1]).build()).get());
+                .setSettings(Settings.builder()
+                        .put("index.number_of_replicas", 0)
+                        .put("index.number_of_shards", shardSplits[1])
+                        .putNull("index.blocks.write")
+                        .build()).get());
         ensureGreen();
         assertHitCount(client().prepareSearch("first_shrink").setSize(100).setQuery(new TermsQueryBuilder("foo", "bar")).get(), 20);
 
@@ -135,9 +137,12 @@ public class ShrinkIndexIT extends ESIntegTestCase {
         ensureGreen();
         // now merge source into a 2 shard index
         assertAcked(client().admin().indices().prepareResizeIndex("first_shrink", "second_shrink")
-            .setSettings(Settings.builder()
-                .put("index.number_of_replicas", 0)
-                .put("index.number_of_shards", shardSplits[2]).build()).get());
+                .setSettings(Settings.builder()
+                        .put("index.number_of_replicas", 0)
+                        .put("index.number_of_shards", shardSplits[2])
+                        .putNull("index.blocks.write")
+                        .putNull("index.routing.allocation.require._name")
+                        .build()).get());
         ensureGreen();
         assertHitCount(client().prepareSearch("second_shrink").setSize(100).setQuery(new TermsQueryBuilder("foo", "bar")).get(), 20);
         // let it be allocated anywhere and bump replicas
@@ -272,8 +277,14 @@ public class ShrinkIndexIT extends ESIntegTestCase {
 
         // now merge source into a single shard index
         final boolean createWithReplicas = randomBoolean();
-        assertAcked(client().admin().indices().prepareResizeIndex("source", "target")
-            .setSettings(Settings.builder().put("index.number_of_replicas", createWithReplicas ? 1 : 0).build()).get());
+        assertAcked(
+                client().admin().indices().prepareResizeIndex("source", "target")
+                        .setSettings(
+                                Settings.builder()
+                                        .put("index.number_of_replicas", createWithReplicas ? 1 : 0)
+                                        .putNull("index.blocks.write")
+                                        .putNull("index.routing.allocation.require._name")
+                                        .build()).get());
         ensureGreen();
 
         // resolve true merge node - this is not always the node we required as all shards may be on another node
@@ -444,19 +455,20 @@ public class ShrinkIndexIT extends ESIntegTestCase {
 
         // check that index sort cannot be set on the target index
         IllegalArgumentException exc = expectThrows(IllegalArgumentException.class,
-            () -> client().admin().indices().prepareResizeIndex("source", "target")
-                .setSettings(Settings.builder()
-                    .put("index.number_of_replicas", 0)
-                    .put("index.number_of_shards", "2")
-                    .put("index.sort.field", "foo")
-                    .build()).get());
+                () -> client().admin().indices().prepareResizeIndex("source", "target")
+                        .setSettings(Settings.builder()
+                                .put("index.number_of_replicas", 0)
+                                .put("index.number_of_shards", "2")
+                                .put("index.sort.field", "foo")
+                                .build()).get());
         assertThat(exc.getMessage(), containsString("can't override index sort when resizing an index"));
 
         // check that the index sort order of `source` is correctly applied to the `target`
         assertAcked(client().admin().indices().prepareResizeIndex("source", "target")
-            .setSettings(Settings.builder()
-                .put("index.number_of_replicas", 0)
-                .put("index.number_of_shards", "2").build()).get());
+                .setSettings(Settings.builder()
+                        .put("index.number_of_replicas", 0)
+                        .put("index.number_of_shards", "2")
+                        .putNull("index.blocks.write").build()).get());
         ensureGreen();
         flushAndRefresh();
         GetSettingsResponse settingsResponse =
diff --git a/server/src/test/java/org/elasticsearch/action/admin/indices/create/SplitIndexIT.java b/server/src/test/java/org/elasticsearch/action/admin/indices/create/SplitIndexIT.java
index fe6e980ab42..a0fd40a649e 100644
--- a/server/src/test/java/org/elasticsearch/action/admin/indices/create/SplitIndexIT.java
+++ b/server/src/test/java/org/elasticsearch/action/admin/indices/create/SplitIndexIT.java
@@ -193,8 +193,9 @@ public class SplitIndexIT extends ESIntegTestCase {
                 .put("index.blocks.write", true)).get();
         ensureGreen();
         Settings.Builder firstSplitSettingsBuilder = Settings.builder()
-            .put("index.number_of_replicas", 0)
-            .put("index.number_of_shards", firstSplitShards);
+                .put("index.number_of_replicas", 0)
+                .put("index.number_of_shards", firstSplitShards)
+                .putNull("index.blocks.write");
         if (sourceShards == 1 && useRoutingPartition == false && randomBoolean()) { // try to set it if we have a source index with 1 shard
             firstSplitSettingsBuilder.put("index.number_of_routing_shards", secondSplitShards);
         }
@@ -225,10 +226,12 @@ public class SplitIndexIT extends ESIntegTestCase {
         ensureGreen();
         // now split source into a new index
         assertAcked(client().admin().indices().prepareResizeIndex("first_split", "second_split")
-            .setResizeType(ResizeType.SPLIT)
-            .setSettings(Settings.builder()
-                .put("index.number_of_replicas", 0)
-                .put("index.number_of_shards", secondSplitShards).build()).get());
+                .setResizeType(ResizeType.SPLIT)
+                .setSettings(Settings.builder()
+                        .put("index.number_of_replicas", 0)
+                        .put("index.number_of_shards", secondSplitShards)
+                        .putNull("index.blocks.write")
+                        .build()).get());
         ensureGreen();
         assertHitCount(client().prepareSearch("second_split").setSize(100).setQuery(new TermsQueryBuilder("foo", "bar")).get(), numDocs);
         // let it be allocated anywhere and bump replicas
@@ -340,7 +343,11 @@ public class SplitIndexIT extends ESIntegTestCase {
 
         // now split source into target
         final Settings splitSettings =
-                Settings.builder().put("index.number_of_replicas", 0).put("index.number_of_shards", numberOfTargetShards).build();
+                Settings.builder()
+                        .put("index.number_of_replicas", 0)
+                        .put("index.number_of_shards", numberOfTargetShards)
+                        .putNull("index.blocks.write")
+                        .build();
         assertAcked(client().admin().indices().prepareResizeIndex("source", "target")
             .setResizeType(ResizeType.SPLIT)
             .setSettings(splitSettings).get());
@@ -396,8 +403,10 @@ public class SplitIndexIT extends ESIntegTestCase {
             assertAcked(client().admin().indices().prepareResizeIndex("source", "target")
                 .setResizeType(ResizeType.SPLIT)
                 .setSettings(Settings.builder()
-                    .put("index.number_of_replicas", createWithReplicas ? 1 : 0)
-                    .put("index.number_of_shards", 2).build()).get());
+                        .put("index.number_of_replicas", createWithReplicas ? 1 : 0)
+                        .put("index.number_of_shards", 2)
+                        .putNull("index.blocks.write")
+                        .build()).get());
             ensureGreen();
 
             final ClusterState state = client().admin().cluster().prepareState().get().getState();
@@ -507,10 +516,12 @@ public class SplitIndexIT extends ESIntegTestCase {
 
         // check that the index sort order of `source` is correctly applied to the `target`
         assertAcked(client().admin().indices().prepareResizeIndex("source", "target")
-            .setResizeType(ResizeType.SPLIT)
-            .setSettings(Settings.builder()
-                .put("index.number_of_replicas", 0)
-                .put("index.number_of_shards", 4).build()).get());
+                .setResizeType(ResizeType.SPLIT)
+                .setSettings(Settings.builder()
+                        .put("index.number_of_replicas", 0)
+                        .put("index.number_of_shards", 4)
+                        .putNull("index.blocks.write")
+                        .build()).get());
         ensureGreen();
         flushAndRefresh();
         GetSettingsResponse settingsResponse =
diff --git a/server/src/test/java/org/elasticsearch/rest/action/admin/indices/RestResizeHandlerTests.java b/server/src/test/java/org/elasticsearch/rest/action/admin/indices/RestResizeHandlerTests.java
index 2c30184ee4e..2eeb90d9ec9 100644
--- a/server/src/test/java/org/elasticsearch/rest/action/admin/indices/RestResizeHandlerTests.java
+++ b/server/src/test/java/org/elasticsearch/rest/action/admin/indices/RestResizeHandlerTests.java
@@ -70,10 +70,8 @@ public class RestResizeHandlerTests extends ESTestCase {
             assertThat(e, hasToString(containsString("parameter [copy_settings] can not be explicitly set to [false]")));
         } else {
             handler.prepareRequest(request, mock(NodeClient.class));
-            if (copySettings == null) {
-                assertWarnings(
-                        "resize operations without copying settings is deprecated; "
-                                + "set parameter [copy_settings] to [true] for future default behavior");
+            if ("".equals(copySettings) || "true".equals(copySettings)) {
+                assertWarnings("parameter [copy_settings] is deprecated and will be removed in 8.0.0");
             }
         }
     }
diff --git a/server/src/test/java/org/elasticsearch/routing/PartitionedRoutingIT.java b/server/src/test/java/org/elasticsearch/routing/PartitionedRoutingIT.java
index 74fbcc20a02..37ea53332af 100644
--- a/server/src/test/java/org/elasticsearch/routing/PartitionedRoutingIT.java
+++ b/server/src/test/java/org/elasticsearch/routing/PartitionedRoutingIT.java
@@ -108,10 +108,11 @@ public class PartitionedRoutingIT extends ESIntegTestCase {
 
             logger.info("--> shrinking index [" + previousIndex + "] to [" + index + "]");
             client().admin().indices().prepareResizeIndex(previousIndex, index)
-                .setSettings(Settings.builder()
-                    .put("index.number_of_shards", currentShards)
-                    .put("index.number_of_replicas", numberOfReplicas())
-                    .build()).get();
+                    .setSettings(Settings.builder()
+                            .put("index.number_of_shards", currentShards)
+                            .put("index.number_of_replicas", numberOfReplicas())
+                            .putNull("index.routing.allocation.require._name")
+                            .build()).get();
             ensureGreen();
         }
     }