diff --git a/labkey-client-api/CHANGELOG.md b/labkey-client-api/CHANGELOG.md
index 96add7c5..b36a360e 100644
--- a/labkey-client-api/CHANGELOG.md
+++ b/labkey-client-api/CHANGELOG.md
@@ -1,8 +1,14 @@
 # The LabKey Remote API Library for Java - Change Log
 
+## version TBD
+*Released*: TBD
+* [Issue 43380](https://www.labkey.org/home/Developer/issues/issues-details.view?issueId=43380): ImportDataCommand missing options supported by query-import.api
+* Remove `CheckForStudyReloadCommand.java`
+* Remove `URISyntaxException` from one `Connection` constructor
+
 ## version 1.4.0
 *Released*: 16 June 2021
-* Issue 43246: Lineage query NPE while processing an UploadedFile
+* [Issue 43246](https://www.labkey.org/home/Developer/issues/issues-details.view?issueId=43246): Lineage query NPE while processing an UploadedFile
 * Additional lineage options and support additional properties in response
 * Update dependency version numbers
 * Update to Gradle 7.1
diff --git a/labkey-client-api/src/org/labkey/remoteapi/Connection.java b/labkey-client-api/src/org/labkey/remoteapi/Connection.java
index 15c7b63f..80f133d5 100644
--- a/labkey-client-api/src/org/labkey/remoteapi/Connection.java
+++ b/labkey-client-api/src/org/labkey/remoteapi/Connection.java
@@ -142,7 +142,7 @@ public Connection(URI baseURI, CredentialsProvider credentialsProvider)
     {
         if (baseURI.getHost() == null || baseURI.getScheme() == null)
         {
-            throw new IllegalArgumentException("Invalid server URL: " + baseURI.toString());
+            throw new IllegalArgumentException("Invalid server URL: " + baseURI);
         }
         _baseURI = baseURI;
         _credentialsProvider = credentialsProvider;
@@ -541,4 +541,4 @@ private static URI toURI(String baseUrl)
             throw new IllegalArgumentException("Invalid target server URL: " + baseUrl);
         }
     }
-}
\ No newline at end of file
+}
diff --git a/labkey-client-api/src/org/labkey/remoteapi/query/ImportDataCommand.java b/labkey-client-api/src/org/labkey/remoteapi/query/ImportDataCommand.java
index 6a6462d0..202f8f76 100644
--- a/labkey-client-api/src/org/labkey/remoteapi/query/ImportDataCommand.java
+++ b/labkey-client-api/src/org/labkey/remoteapi/query/ImportDataCommand.java
@@ -32,6 +32,7 @@
 import java.io.InputStreamReader;
 import java.io.StringWriter;
 import java.net.URI;
+import java.nio.charset.Charset;
 import java.util.Arrays;
 import java.util.Objects;
 import java.util.stream.Collectors;
@@ -580,7 +581,7 @@ private static void printUsage()
     private static String readFully(InputStream in) throws IOException
     {
         StringWriter sw = new StringWriter();
-        try (BufferedReader buf = new BufferedReader(new InputStreamReader(in)))
+        try (BufferedReader buf = new BufferedReader(new InputStreamReader(in, Charset.defaultCharset())))
         {
             String line;
             do