diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/BaseWorkerContext.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/BaseWorkerContext.java
index 2962e8908..401a126b5 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/BaseWorkerContext.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/context/BaseWorkerContext.java
@@ -1521,6 +1521,14 @@ public abstract class BaseWorkerContext extends I18nBase implements IWorkerConte
           OperationOutcomeIssueComponent iss = new OperationOutcomeIssueComponent(org.hl7.fhir.r5.model.OperationOutcome.IssueSeverity.INFORMATION, org.hl7.fhir.r5.model.OperationOutcome.IssueType.EXPIRED);
           iss.getDetails().setText(formatMessage(I18nConstants.MSG_RETIRED, ((PrimitiveType<?>) p.getValue()).asStringValue()));              
           issues.add(iss);
+        } else if (p.getName().equals("warning-experimental")) {
+          OperationOutcomeIssueComponent iss = new OperationOutcomeIssueComponent(org.hl7.fhir.r5.model.OperationOutcome.IssueSeverity.INFORMATION, org.hl7.fhir.r5.model.OperationOutcome.IssueType.BUSINESSRULE);
+          iss.getDetails().setText(formatMessage(I18nConstants.MSG_EXPERIMENTAL, ((PrimitiveType<?>) p.getValue()).asStringValue()));              
+          issues.add(iss);
+        } else if (p.getName().equals("warning-draft")) {
+          OperationOutcomeIssueComponent iss = new OperationOutcomeIssueComponent(org.hl7.fhir.r5.model.OperationOutcome.IssueSeverity.INFORMATION, org.hl7.fhir.r5.model.OperationOutcome.IssueType.BUSINESSRULE);
+          iss.getDetails().setText(formatMessage(I18nConstants.MSG_DRAFT, ((PrimitiveType<?>) p.getValue()).asStringValue()));              
+          issues.add(iss);
         } else if (p.getName().equals("cause")) {
           try {
             IssueType it = IssueType.fromCode(((StringType) p.getValue()).getValue());
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/test/utils/CompareUtilities.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/test/utils/CompareUtilities.java
index 2d19973a8..f1744648e 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/test/utils/CompareUtilities.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/test/utils/CompareUtilities.java
@@ -309,7 +309,7 @@ public class CompareUtilities extends BaseTestingUtilities {
       int expectedMin = countExpectedMin(expectedArray);
 
       if (actualArray.size() > expectedArray.size() || actualArray.size() < expectedMin)
-        return createNotEqualMessage("array properties count differs at " + path, Integer.toString(expectedArray.size()), Integer.toString(actualArray.size()));
+        return createNotEqualMessage("array item count differs at " + path, Integer.toString(expectedArray.size()), Integer.toString(actualArray.size()));
       int c = 0;
       for (int i = 0; i < expectedArray.size(); i++) {
         if (c >= actualArray.size()) {
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/ElementVisitor.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/ElementVisitor.java
index 0ae4b1a56..b2e6504a8 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/ElementVisitor.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/ElementVisitor.java
@@ -8,8 +8,8 @@ import org.hl7.fhir.r5.model.Resource;
 public class ElementVisitor {
 
   public interface IElementVisitor {
-    public void visit(Resource resource);
-    public void visit(Element element);
+    public void visit(Object context, Resource resource);
+    public void visit(Object context, Element element);
   }
 
   private IElementVisitor visitor;
@@ -18,28 +18,28 @@ public class ElementVisitor {
     this.visitor = visitor;
   }
 
-  private void visitBase(Base base) {
+  private void visitBase(Object context, Base base) {
     for (Property p : base.children()) {
       if (p.hasValues()) {
         for (Base b : p.getValues()) {
           if (b instanceof Resource) {
-            visit((Resource) b);
+            visit(context, (Resource) b);
           } else {
-            visit((Element) b);
+            visit(context, (Element) b);
           }
         }
       }
     }
   }
 
-  public void visit(Resource res) {
-    visitor.visit(res);
-    visitBase(res);
+  public void visit(Object context, Resource res) {
+    visitor.visit(context, res);
+    visitBase(context, res);
   }
 
-  public void visit(Element e) {
-    visitor.visit(e);
-    visitBase(e);
+  public void visit(Object context, Element e) {
+    visitor.visit(context, e);
+    visitBase(context, e);
   }
 
 }
diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/i18n/I18nConstants.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/i18n/I18nConstants.java
index c4494e86a..b1e238661 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/i18n/I18nConstants.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/i18n/I18nConstants.java
@@ -956,6 +956,15 @@ public class I18nConstants {
   public static final String MSG_RETIRED = "MSG_RETIRED";
   public static final String INACTIVE_CODE_WARNING = "INACTIVE_CODE_WARNING";
   public static final String SD_EXTENSION_URL_MISSING = "SD_EXTENSION_URL_MISSING";
+  public static final String MSG_EXPERIMENTAL = "MSG_EXPERIMENTAL";
+  public static final String MSG_DRAFT = "MSG_DRAFT";
+  public static final String MSG_DEPENDS_ON_DEPRECATED = "MSG_DEPENDS_ON_DEPRECATED";
+  public static final String MSG_DEPENDS_ON_WITHDRAWN = "MSG_DEPENDS_ON_WITHDRAWN";
+  public static final String MSG_DEPENDS_ON_RETIRED = "MSG_DEPENDS_ON_RETIRED";
+  public static final String MSG_DEPENDS_ON_EXPERIMENTAL = "MSG_DEPENDS_ON_EXPERIMENTAL";
+  public static final String MSG_DEPENDS_ON_DRAFT = "MSG_DEPENDS_ON_DRAFT";
+  public static final String MSG_DEPENDS_ON_EXTENSION = "MSG_DEPENDS_ON_EXTENSION";
+  public static final String MSG_DEPENDS_ON_PROFILE = "MSG_DEPENDS_ON_PROFILE";
 }
 
 
diff --git a/org.hl7.fhir.utilities/src/main/resources/Messages.properties b/org.hl7.fhir.utilities/src/main/resources/Messages.properties
index c77643f3d..2ab215b84 100644
--- a/org.hl7.fhir.utilities/src/main/resources/Messages.properties
+++ b/org.hl7.fhir.utilities/src/main/resources/Messages.properties
@@ -1012,5 +1012,14 @@ SD_EXTENSION_URL_MISSING = The value of Extension.url is not fixed to the extens
 MSG_DEPRECATED = Reference to deprecated item {0}
 MSG_WITHDRAWN = Reference to withdrawn item {0}
 MSG_RETIRED = Reference to retired item {0}
+MSG_EXPERIMENTAL = Reference to experimental item {0}
+MSG_DRAFT = Reference to draft item {0}
 INACTIVE_CODE_WARNING = The code ''{0}'' is valid but is not active
 SD_ED_TYPE_PROFILE_WRONG_TYPE = The type {0} is not in the list of allowed types {1} in the profile {2}
+MSG_DEPENDS_ON_DEPRECATED = The {0} {1} is deprecated
+MSG_DEPENDS_ON_WITHDRAWN = The {0} {1} is withdrawn
+MSG_DEPENDS_ON_RETIRED = The {0} {1} is retired
+MSG_DEPENDS_ON_EXPERIMENTAL = The {0} {1} is an experimental resource
+MSG_DEPENDS_ON_DRAFT = The {0} {1} is a draft resource
+MSG_DEPENDS_ON_EXTENSION = extension
+MSG_DEPENDS_ON_PROFILE = profile
diff --git a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/model/CliContext.java b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/model/CliContext.java
index e2d391c8e..27b2ac4b7 100644
--- a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/model/CliContext.java
+++ b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/model/CliContext.java
@@ -101,6 +101,8 @@ public class CliContext {
   private List<String> sources = new ArrayList<String>();
   @JsonProperty("inputs")
   private List<String> inputs = new ArrayList<String>();
+  @JsonProperty("modeParams")
+  private List<String> modeParams = new ArrayList<String>();
 
   @JsonProperty("mode")
   private EngineMode mode = EngineMode.VALIDATION;
@@ -427,6 +429,12 @@ public class CliContext {
   public List<String> getInputs() {
     return inputs;
   }
+  
+
+  @JsonProperty("modeParams")
+  public List<String> getModeParams() {
+    return modeParams;
+  }
 
   @JsonProperty("sources")
   public CliContext setSources(List<String> sources) {
diff --git a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/tasks/TxTestsTask.java b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/tasks/TxTestsTask.java
index 38246f127..87da870d5 100644
--- a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/tasks/TxTestsTask.java
+++ b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/tasks/TxTestsTask.java
@@ -41,7 +41,7 @@ public class TxTestsTask extends StandaloneTask{
       final String version = Params.getParam(args, Params.VERSION);
       final String tx = Params.getParam(args, Params.TERMINOLOGY);
       final String filter = Params.getParam(args, Params.FILTER);
-      boolean ok = new TxTester(new TxTester.InternalTxLoader(source, output), tx, false).setOutput(output).execute(version, filter);
+      boolean ok = new TxTester(new TxTester.InternalTxLoader(source, output), tx, false).setOutput(output).execute(version, cliContext.getModeParams(), filter);
       SystemExitManager.setError(ok ? 1 : 0);
       SystemExitManager.finish();
   }
diff --git a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/utils/Params.java b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/utils/Params.java
index 0f73603c2..0e1a9a36e 100644
--- a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/utils/Params.java
+++ b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/cli/utils/Params.java
@@ -99,6 +99,7 @@ public class Params {
   public static final String SOURCE = "-source";
   public static final String INPUT = "-input";
   public static final String FILTER = "-filter";
+  public static final String MODE = "-mode";
   private static final String FHIR_SETTINGS_PARAM = "-fhir-settings";
   private static final String WATCH_MODE_PARAM = "-watch-mode";
   private static final String WATCH_SCAN_DELAY = "-watch-scan-delay";
@@ -203,6 +204,13 @@ public class Params {
           String q = args[++i];
           cliContext.setLevel(ValidationLevel.fromCode(q));
         }
+      } else if (args[i].equals(MODE)) {
+        if (i + 1 == args.length)
+          throw new Error("Specified -mode without indicating mode");
+        else {
+          String q = args[++i];
+          cliContext.getModeParams().add(q);
+        }
       } else if (args[i].equals(INPUT)) {
         if (i + 1 == args.length)
           throw new Error("Specified -input without providing value");
diff --git a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/special/TxTester.java b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/special/TxTester.java
index 38e89c5a8..70ac919b2 100644
--- a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/special/TxTester.java
+++ b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/special/TxTester.java
@@ -65,10 +65,10 @@ public class TxTester {
   }
 
   public static void main(String[] args) throws Exception {
-    new TxTester(new InternalTxLoader(args[0]), args[1], "true".equals(args[2])).execute(args[2], args[3]);
+    new TxTester(new InternalTxLoader(args[0]), args[1], "true".equals(args[2])).execute(args[2], new ArrayList<>(), args[3]);
   }
   
-  public boolean execute(String version, String filter) throws IOException, URISyntaxException {
+  public boolean execute(String version, List<String> modes, String filter) throws IOException, URISyntaxException {
     if (output == null) {
       output = Utilities.path("[tmp]", serverId());
     }
@@ -77,6 +77,7 @@ public class TxTester {
     System.out.println("  Source for tests: "+loader.describe());
     System.out.println("  Output Directory: "+output);
     System.out.println("  Term Service Url: "+server);
+    System.out.println("  Test  Exec Modes: "+modes.toString());
     if (version != null) {
       System.out.println("  Tx  FHIR Version: "+version);
     }
@@ -91,7 +92,7 @@ public class TxTester {
       ITerminologyClient tx = connectToServer();
       boolean ok = checkClient(tx);
       for (JsonObject suite : tests.getJsonObjects("suites")) {
-        ok = runSuite(suite, tx, filter, json.forceArray("suites")) && ok;
+        ok = runSuite(suite, tx, modes, filter, json.forceArray("suites")) && ok;
       }
       TextFile.stringToFile(JsonParser.compose(json, true), Utilities.path(output, "test-results.json"));
       if (ok) {
@@ -137,20 +138,20 @@ public class TxTester {
   }
 
 
-  public String executeTest(JsonObject suite, JsonObject test) throws URISyntaxException, FHIRFormatError, FileNotFoundException, IOException {
+  public String executeTest(JsonObject suite, JsonObject test, List<String> modes) throws URISyntaxException, FHIRFormatError, FileNotFoundException, IOException {
     error = null;
     if (tx == null) {
       tx = connectToServer();
       checkClient(tx);
     }
     List<Resource> setup = loadSetupResources(suite);
-    if (runTest(test, tx, setup, "*", null)) {
+    if (runTest(test, tx, setup, modes, "*", null)) {
       return null;      
     } else {
       return error;
     }
   }
-  private boolean runSuite(JsonObject suite, ITerminologyClient tx, String filter, JsonArray output) throws FHIRFormatError, FileNotFoundException, IOException {
+  private boolean runSuite(JsonObject suite, ITerminologyClient tx, List<String> modes, String filter, JsonArray output) throws FHIRFormatError, FileNotFoundException, IOException {
     System.out.println("Group "+suite.asString("name"));
     JsonObject outputS = new JsonObject();
     if (output != null) {
@@ -160,12 +161,12 @@ public class TxTester {
     List<Resource> setup = loadSetupResources(suite);
     boolean ok = true;
     for (JsonObject test : suite.getJsonObjects("tests")) {
-      ok = runTest(test, tx, setup, filter, outputS.forceArray("tests")) && ok;      
+      ok = runTest(test, tx, setup, modes, filter, outputS.forceArray("tests")) && ok;      
     }
     return ok;
   }
 
-  private boolean runTest(JsonObject test, ITerminologyClient tx, List<Resource> setup, String filter, JsonArray output) throws FHIRFormatError, DefinitionException, FileNotFoundException, FHIRException, IOException { 
+  private boolean runTest(JsonObject test, ITerminologyClient tx, List<Resource> setup, List<String> modes, String filter, JsonArray output) throws FHIRFormatError, DefinitionException, FileNotFoundException, FHIRException, IOException { 
     JsonObject outputT = new JsonObject();
     if (output != null) {
       output.add(outputT);
@@ -175,9 +176,9 @@ public class TxTester {
     if (Utilities.noString(filter) || filter.equals("*") || test.asString("name").contains(filter)) {
       System.out.print("  Test "+test.asString("name")+": ");
       try {
-        Parameters req = (Parameters) loader.loadResource(test.asString("request"));
+        Parameters req = (Parameters) loader.loadResource(chooseParam(test, "request", modes));
 
-        String fn = test.asString("response");
+        String fn = chooseParam(test, "response", modes);
         String resp = TextFile.bytesToString(loader.loadContent(fn));
         String fp = Utilities.path("[tmp]", serverId(), fn);
         File fo = new File(fp);
@@ -217,6 +218,15 @@ public class TxTester {
     }
   }
 
+  private String chooseParam(JsonObject test, String name, List<String> modes) {
+    for (String mode : modes) {
+      if (test.has(name+":"+mode)) {
+        return test.asString(name+":"+mode);
+      }
+    }
+    return test.asString(name);
+  }
+
   private Parameters loadProfile(JsonObject test) throws FHIRFormatError, DefinitionException, FileNotFoundException, FHIRException, IOException {
     if (test.has("profile")) {        
       return (Parameters) loader.loadResource(test.asString("profile"));
diff --git a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/special/TxTesterScrubbers.java b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/special/TxTesterScrubbers.java
index b5e7f8729..f23d0fed5 100644
--- a/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/special/TxTesterScrubbers.java
+++ b/org.hl7.fhir.validation/src/main/java/org/hl7/fhir/validation/special/TxTesterScrubbers.java
@@ -53,7 +53,7 @@ public class TxTesterScrubbers {
     }
     
     @Override
-    public void visit(Resource resource) {
+    public void visit(Object context, Resource resource) {
       if (resource instanceof DomainResource) {
         DomainResource dr = (DomainResource) resource;
         dr.getExtension().removeIf(ext -> !isManagedExtension(ext));
@@ -61,7 +61,7 @@ public class TxTesterScrubbers {
     }
 
     @Override
-    public void visit(Element element) {
+    public void visit(Object context, Element element) {
       element.getExtension().removeIf(ext -> !isManagedExtension(ext));
     }
   }
@@ -69,7 +69,7 @@ public class TxTesterScrubbers {
   public static void scrubDR(DomainResource dr, boolean tight) {
     dr.setText(null);
     dr.setMeta(null);  
-    new ElementVisitor(new TxTesterScrubberVisitor(tight)).visit(dr);
+    new ElementVisitor(new TxTesterScrubberVisitor(tight)).visit(null, dr);
   }
 
   public static void scrubVS(ValueSet vs, boolean tight) {
diff --git a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/terminology/tests/ExternalTerminologyServiceTests.java b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/terminology/tests/ExternalTerminologyServiceTests.java
index 99ba5e71c..11eb70b1d 100644
--- a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/terminology/tests/ExternalTerminologyServiceTests.java
+++ b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/terminology/tests/ExternalTerminologyServiceTests.java
@@ -46,8 +46,8 @@ public class ExternalTerminologyServiceTests implements ITxTesterLoader {
     private JsonObject test;
   }
 
-  private static final String SERVER = FhirSettings.getTxFhirDevelopment();  
-// private static final String SERVER = FhirSettings.getTxFhirLocal();  
+//  private static final String SERVER = FhirSettings.getTxFhirDevelopment();  
+ private static final String SERVER = FhirSettings.getTxFhirLocal();  
 // private static final String SERVER = "https://r4.ontoserver.csiro.au/fhir";
 
   
@@ -81,6 +81,7 @@ public class ExternalTerminologyServiceTests implements ITxTesterLoader {
   private JsonObjectPair setup;
   private String version = "5.0.0";
   private static TxTester tester;
+  private List<String> modes = new ArrayList<>();
 
   public ExternalTerminologyServiceTests(String name, JsonObjectPair setup) {
     this.setup = setup;
@@ -93,7 +94,7 @@ public class ExternalTerminologyServiceTests implements ITxTesterLoader {
       if (tester == null) {
         tester = new TxTester(this, SERVER, true);
       }
-      String err = tester.executeTest(setup.suite, setup.test);
+      String err = tester.executeTest(setup.suite, setup.test, modes);
       Assertions.assertTrue(err == null, err);
     } else {
       Assertions.assertTrue(true);
diff --git a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/terminology/tests/TerminologyServiceTests.java b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/terminology/tests/TerminologyServiceTests.java
index d9fe67d7b..7035ce849 100644
--- a/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/terminology/tests/TerminologyServiceTests.java
+++ b/org.hl7.fhir.validation/src/test/java/org/hl7/fhir/terminology/tests/TerminologyServiceTests.java
@@ -117,7 +117,6 @@ public class TerminologyServiceTests {
   public void test() throws Exception {
     if (baseEngine == null) {
       baseEngine = TestUtilities.getValidationEngineNoTxServer("hl7.fhir.r5.core#5.0.0", FhirPublication.R5, "5.0.0");
-
     }
     ValidationEngine engine = new ValidationEngine(this.baseEngine);
     for (String s : setup.suite.forceArray("setup").asStrings()) {
diff --git a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/all-systems.cache b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/all-systems.cache
index f71ba85ea..438753f0f 100644
--- a/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/all-systems.cache
+++ b/org.hl7.fhir.validation/src/test/resources/txCache/org.hl7.fhir.validation/5.0.0/all-systems.cache
@@ -143,3 +143,18 @@ v: {
   "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm"
 }
 -------------------------------------------------------------------------------------
+{"code" : {
+  "code" : "json"
+}, "url": "http://hl7.org/fhir/ValueSet/mimetypes", "version": "5.0.0", "langs":"[en]", "useServer":"true", "useClient":"true", "guessSystem":"true", "valueSetMode":"ALL_CHECKS", "displayWarningMode":"false", "versionFlexible":"false", "profile": {
+  "resourceType" : "Parameters",
+  "parameter" : [{
+    "name" : "profile-url",
+    "valueString" : "http://hl7.org/fhir/ExpansionProfile/dc8fd4bc-091a-424a-8a3b-6198ef146891"
+  }]
+}}####
+v: {
+  "display" : "json",
+  "code" : "json",
+  "system" : "urn:ietf:bcp:13"
+}
+-------------------------------------------------------------------------------------