diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/elementmodel/Element.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/elementmodel/Element.java
index d306c414b..c46e85c01 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/elementmodel/Element.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/elementmodel/Element.java
@@ -634,7 +634,14 @@ public class Element extends Base {
 
   @Override
   public String toString() {
-    return name+"="+fhirType() + "["+(children == null || hasValue() ? value : Integer.toString(children.size())+" children")+"]";
+    if (name.equals(fhirType()) && isResource()) {
+      return fhirType()+"/"+getIdBase() + "["+(children == null || hasValue() ? value : Integer.toString(children.size())+" children")+"]";
+      
+    } else if (isResource()) {
+      return name+"="+fhirType()+"/"+getIdBase()+ "["+(children == null || hasValue() ? value : Integer.toString(children.size())+" children")+"]";
+    } else {
+      return name+"="+fhirType() + "["+(children == null || hasValue() ? value : Integer.toString(children.size())+" children")+"]";
+    }
   }
 
   @Override
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/elementmodel/Manager.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/elementmodel/Manager.java
index be9918f74..0bfcf8f90 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/elementmodel/Manager.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/elementmodel/Manager.java
@@ -62,6 +62,8 @@ public class Manager {
           return "txt";
         case VBAR:
           return "hl7";
+        case SHC:
+          return "shc";
       }
       return null;
     }
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/CodeSystemRenderer.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/CodeSystemRenderer.java
index 7af63b922..f9618e79f 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/CodeSystemRenderer.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/CodeSystemRenderer.java
@@ -422,7 +422,7 @@ public class CodeSystemRenderer extends TerminologyRenderer {
             if (first) first = false; else td.addText(", ");
             if (pcv.hasValueCoding()) { 
               td.addText(pcv.getValueCoding().getCode());
-            } else if (pcv.hasValueStringType() && Utilities.isAbsoluteUrl(pcv.getValue().primitiveValue())) {
+            } else if (pcv.hasValueStringType() && Utilities.isAbsoluteUrlLinkable(pcv.getValue().primitiveValue())) {
               td.ah(pcv.getValue().primitiveValue()).tx(pcv.getValue().primitiveValue());
             } else {
               td.addText(pcv.getValue().primitiveValue());
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/ProfileDrivenRenderer.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/ProfileDrivenRenderer.java
index c7420060a..6eb2606ef 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/ProfileDrivenRenderer.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/ProfileDrivenRenderer.java
@@ -450,8 +450,10 @@ public class ProfileDrivenRenderer extends ResourceRenderer {
       x.addText(((Enumeration<?>) e).getValue().toString()); // todo: look up a display name if there is one
       return true;
     } else if (e instanceof BooleanType) {
-      if (((BooleanType) e).getValue()) {
+      if (((BooleanType) e).hasValue()) {
         x.addText(name);
+        x.addText(": ");
+        x.addText(((BooleanType) e).getValueAsString());
         return true;
       }
     } else if (e instanceof CodeableReference) {
diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/QuestionnaireRenderer.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/QuestionnaireRenderer.java
index 4c9769072..3bb0e805c 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/QuestionnaireRenderer.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/renderers/QuestionnaireRenderer.java
@@ -1013,7 +1013,7 @@ public class QuestionnaireRenderer extends TerminologyRenderer {
   private void defn(XhtmlNode tbl, String name, String url, Resource res) throws UnsupportedEncodingException, IOException {
     if (res != null && res.hasUserData("path")) {
       defn(tbl, "Definition", RendererFactory.factory(res, context).display(res), res.getUserString("path"));
-    } else if (Utilities.isAbsoluteUrl(url)) {
+    } else if (Utilities.isAbsoluteUrlLinkable(url)) {
       defn(tbl, "Definition", url, url);
     } {
       defn(tbl, "Definition", url);
diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
index 5679a06e0..9fce7c0f0 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/Utilities.java
@@ -1098,7 +1098,17 @@ public class Utilities {
     if (ref != null && ref.contains(":")) {
       String scheme = ref.substring(0, ref.indexOf(":"));
       String details = ref.substring(ref.indexOf(":")+1);
-      return (existsInList(scheme, "http", "https", "urn") || isToken(scheme) || Utilities.startsWithInList(ref, "urn:iso:", "urn:iso-iec:", "urn:iso-cie:", "urn:iso-astm:", "urn:iso-ieee:", "urn:iec:"))
+      return (existsInList(scheme, "http", "https", "urn") || (isToken(scheme) && scheme.equals(scheme.toLowerCase())) || Utilities.startsWithInList(ref, "urn:iso:", "urn:iso-iec:", "urn:iso-cie:", "urn:iso-astm:", "urn:iso-ieee:", "urn:iec:"))
+          && details != null && details.length() > 0 && !details.contains(" "); // rfc5141
+    }
+    return false; 
+  }
+  
+  public static boolean isAbsoluteUrlLinkable(String ref) {
+    if (ref != null && ref.contains(":")) {
+      String scheme = ref.substring(0, ref.indexOf(":"));
+      String details = ref.substring(ref.indexOf(":")+1);
+      return (existsInList(scheme, "http", "https", "ftp"))
           && details != null && details.length() > 0 && !details.contains(" "); // rfc5141
     }
     return false; 
diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/VersionUtilities.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/VersionUtilities.java
index 5cba7179a..18640920f 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/VersionUtilities.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/VersionUtilities.java
@@ -135,7 +135,7 @@ public class VersionUtilities {
   }
 
   public static boolean isR5Ver(String ver) {
-    return ver != null && ver.startsWith(CURRENT_VERSION);
+    return ver != null && (ver.startsWith(CURRENT_VERSION) || ver.equals("current"));
   }
 
   public static boolean isR4BVer(String ver) {