diff --git a/RELEASE_NOTES.md b/RELEASE_NOTES.md
index e97786dae..d773df519 100644
--- a/RELEASE_NOTES.md
+++ b/RELEASE_NOTES.md
@@ -1,7 +1,10 @@
 Validator:
-* Add date addition/subtraction to FHIRPath 
+* Add date addition/subtraction to FHIRPath + add parsing comments
 * Fix questionnaire mode parameter support for validator
 * add extra debugging when valdiator can't fetch content to validate
 
 Other code changes:
 * rename org.hl7.fhir.utilities.cache to org.hl7.fhir.utilities.npm
+* report error locations for run time FHIRPath errors
+* add search on IG registry to PackageClient
+* add focus to FHIRPath function extensions
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diff --git a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/NPMPackageGenerator.java b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/NPMPackageGenerator.java
index 5a8d2fb93..3bbfe0ed3 100644
--- a/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/NPMPackageGenerator.java
+++ b/org.hl7.fhir.r5/src/main/java/org/hl7/fhir/r5/utils/NPMPackageGenerator.java
@@ -102,6 +102,7 @@ public class NPMPackageGenerator {
   private JsonObject packageJ;
   private JsonObject packageManifest;
   private NpmPackageIndexBuilder indexer;
+  private String igVersion;
 
 
   public NPMPackageGenerator(String destFile, String canonical, String url, PackageType kind, ImplementationGuide ig, Date date, boolean notForPublication) throws FHIRException, IOException {
@@ -184,6 +185,7 @@ public class NPMPackageGenerator {
     JsonObject npm = new JsonObject();
     npm.addProperty("name", ig.getPackageId());
     npm.addProperty("version", ig.getVersion());
+    igVersion = ig.getVersion();
     npm.addProperty("tools-version", ToolsVersion.TOOLS_VERSION);
     npm.addProperty("type", kind.getCode());
     npm.addProperty("date", dt);
@@ -395,5 +397,9 @@ public class NPMPackageGenerator {
     }
   }
 
+  public String version() {
+    return igVersion;
+  }
+
 
 }
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diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/CommaSeparatedStringBuilder.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/CommaSeparatedStringBuilder.java
index 3973f1506..89c2eec92 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/CommaSeparatedStringBuilder.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/CommaSeparatedStringBuilder.java
@@ -1,5 +1,7 @@
 package org.hl7.fhir.utilities;
 
+import java.util.List;
+
 /*
   Copyright (c) 2011+, HL7, Inc.
   All rights reserved.
@@ -76,4 +78,11 @@ public class CommaSeparatedStringBuilder {
      append(s);
     
   }
+
+  public void addAll(List<String> list) {
+    for (String s : list) {
+      append(s);
+    }
+    
+  }
 }
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diff --git a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/json/JsonTrackingParser.java b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/json/JsonTrackingParser.java
index e133d2f02..977d6873b 100644
--- a/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/json/JsonTrackingParser.java
+++ b/org.hl7.fhir.utilities/src/main/java/org/hl7/fhir/utilities/json/JsonTrackingParser.java
@@ -36,6 +36,8 @@ import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
 import java.math.BigDecimal;
+import java.net.HttpURLConnection;
+import java.net.URL;
 import java.util.Map;
 import java.util.Stack;
 
@@ -671,6 +673,13 @@ public class JsonTrackingParser {
     Gson gson = new GsonBuilder().setPrettyPrinting().create();
     return gson.toJson(json);    
   }
+
+  public static JsonObject fetchJson(String source) throws IOException {
+    URL url = new URL(source+"?nocache=" + System.currentTimeMillis());
+    HttpURLConnection c = (HttpURLConnection) url.openConnection();
+    c.setInstanceFollowRedirects(true);
+    return parseJson(c.getInputStream());
+  }
   
 	
 }
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