diff --git a/org.hl7.fhir.convertors/pom.xml b/org.hl7.fhir.convertors/pom.xml
index 11e9cd26b..3a33ccbf3 100644
--- a/org.hl7.fhir.convertors/pom.xml
+++ b/org.hl7.fhir.convertors/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>3.8.3-SNAPSHOT</version>
+        <version>3.8.4-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/org.hl7.fhir.dstu2/pom.xml b/org.hl7.fhir.dstu2/pom.xml
index 477266787..b8674b744 100644
--- a/org.hl7.fhir.dstu2/pom.xml
+++ b/org.hl7.fhir.dstu2/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>3.8.3-SNAPSHOT</version>
+		<version>3.8.4-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/org.hl7.fhir.dstu2016may/pom.xml b/org.hl7.fhir.dstu2016may/pom.xml
index 9d52f4cc3..e60d0315e 100644
--- a/org.hl7.fhir.dstu2016may/pom.xml
+++ b/org.hl7.fhir.dstu2016may/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>3.8.3-SNAPSHOT</version>
+		<version>3.8.4-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/org.hl7.fhir.dstu3/pom.xml b/org.hl7.fhir.dstu3/pom.xml
index 2d417d7b8..632c56d0c 100644
--- a/org.hl7.fhir.dstu3/pom.xml
+++ b/org.hl7.fhir.dstu3/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>3.8.3-SNAPSHOT</version>
+        <version>3.8.4-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/org.hl7.fhir.r4/pom.xml b/org.hl7.fhir.r4/pom.xml
index 007223990..0e338e580 100644
--- a/org.hl7.fhir.r4/pom.xml
+++ b/org.hl7.fhir.r4/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>3.8.3-SNAPSHOT</version>
+		<version>3.8.4-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/org.hl7.fhir.r5/pom.xml b/org.hl7.fhir.r5/pom.xml
index e4660fcbc..569c83781 100644
--- a/org.hl7.fhir.r5/pom.xml
+++ b/org.hl7.fhir.r5/pom.xml
@@ -5,7 +5,7 @@
 	<parent>
 		<groupId>ca.uhn.hapi.fhir</groupId>
 		<artifactId>org.hl7.fhir.core</artifactId>
-		<version>3.8.3-SNAPSHOT</version>
+		<version>3.8.4-SNAPSHOT</version>
 		<relativePath>../pom.xml</relativePath>
 	</parent>
 
diff --git a/org.hl7.fhir.utilities/pom.xml b/org.hl7.fhir.utilities/pom.xml
index 7e4998414..db54ead07 100644
--- a/org.hl7.fhir.utilities/pom.xml
+++ b/org.hl7.fhir.utilities/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>3.8.3-SNAPSHOT</version>
+        <version>3.8.4-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/org.hl7.fhir.validation.cli/pom.xml b/org.hl7.fhir.validation.cli/pom.xml
index 28b53a169..4823e5b43 100644
--- a/org.hl7.fhir.validation.cli/pom.xml
+++ b/org.hl7.fhir.validation.cli/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>3.8.3-SNAPSHOT</version>
+        <version>3.8.4-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/org.hl7.fhir.validation/pom.xml b/org.hl7.fhir.validation/pom.xml
index c338343b5..3c0469971 100644
--- a/org.hl7.fhir.validation/pom.xml
+++ b/org.hl7.fhir.validation/pom.xml
@@ -5,7 +5,7 @@
     <parent>
         <groupId>ca.uhn.hapi.fhir</groupId>
         <artifactId>org.hl7.fhir.core</artifactId>
-        <version>3.8.3-SNAPSHOT</version>
+        <version>3.8.4-SNAPSHOT</version>
         <relativePath>../pom.xml</relativePath>
     </parent>
 
diff --git a/pom.xml b/pom.xml
index 457bb08e9..6109cc484 100644
--- a/pom.xml
+++ b/pom.xml
@@ -13,7 +13,7 @@
 	each other. It is fine to bump the point version of this POM without affecting
 	HAPI FHIR.
 	-->
-	<version>3.8.3-SNAPSHOT</version>
+	<version>3.8.4-SNAPSHOT</version>
 
 	<properties>
 		<hapi_fhir_version>3.8.0-SNAPSHOT</hapi_fhir_version>
diff --git a/release.bat b/release.bat
index ca10f65c8..08ccdb11d 100644
--- a/release.bat
+++ b/release.bat
@@ -4,25 +4,25 @@ REM make sure you are committed
 @echo off
 echo ..
 echo =====================================================================
-echo upgrade and release fhir.core from 3.8.2-SNAPSHOT to 3.8.3-SNAPSHOT
+echo upgrade and release fhir.core from 3.8.3-SNAPSHOT to 3.8.4-SNAPSHOT
 echo =====================================================================
 echo ..
 echo check versions and make sure committed...
 pause
 
-call mvn versions:set -DnewVersion=3.8.3-SNAPSHOT
+call mvn versions:set -DnewVersion=3.8.4-SNAPSHOT
 call git commit -a -m "Release new version"
 call git push origin master
-call "C:\tools\fnr.exe" --cl --dir "C:\work\org.hl7.fhir\build" --fileMask "*.java" --includeSubDirectories --find "3.8.2-SNAPSHOT" --replace "3.8.3-SNAPSHOT"
-call "C:\tools\fnr.exe" --cl --dir "C:\work\org.hl7.fhir\fhir-ig-publisher" --fileMask "*.xml" --includeSubDirectories --find "3.8.2-SNAPSHOT" --replace "3.8.3-SNAPSHOT"
-call "C:\tools\fnr.exe" --cl --dir "C:\work\org.hl7.fhir\build" --fileMask "*.xml" --find "3.8.2-SNAPSHOT" --replace "3.8.3-SNAPSHOT"
+call "C:\tools\fnr.exe" --cl --dir "C:\work\org.hl7.fhir\build" --fileMask "*.java" --includeSubDirectories --find "3.8.3-SNAPSHOT" --replace "3.8.4-SNAPSHOT"
+call "C:\tools\fnr.exe" --cl --dir "C:\work\org.hl7.fhir\fhir-ig-publisher" --fileMask "*.xml" --includeSubDirectories --find "3.8.3-SNAPSHOT" --replace "3.8.4-SNAPSHOT"
+call "C:\tools\fnr.exe" --cl --dir "C:\work\org.hl7.fhir\build" --fileMask "*.xml" --find "3.8.3-SNAPSHOT" --replace "3.8.4-SNAPSHOT"
 call mvn deploy
-copy org.hl7.fhir.validation.cli\target\org.hl7.fhir.validation.cli-3.8.3-SNAPSHOT.jar ..\latest-ig-publisher\org.hl7.fhir.validator.jar
+copy org.hl7.fhir.validation.cli\target\org.hl7.fhir.validation.cli-3.8.4-SNAPSHOT.jar ..\latest-ig-publisher\org.hl7.fhir.validator.jar
 cd ..\latest-ig-publisher
-call git commit -a -m "Release new version 3.8.3-SNAPSHOT"
+call git commit -a -m "Release new version 3.8.4-SNAPSHOT"
 call git push origin master
 cd ..\org.hl7.fhir.core
-call python c:\tools\zulip-api\zulip\zulip\send.py --stream committers/notification --subject "java core" -m "New Java Core v3.8.3-SNAPSHOT released. New Validator at https://oss.sonatype.org/service/local/artifact/maven/redirect?r=snapshots&g=ca.uhn.hapi.fhir&a=org.hl7.fhir.validation.cli&v=3.8.3-SNAPSHOT&e=jar, and also deployed at https://fhir.github.io/latest-ig-publisher/org.hl7.fhir.validator.jar" --config-file zuliprc
+call python c:\tools\zulip-api\zulip\zulip\send.py --stream committers/notification --subject "java core" -m "New Java Core v3.8.4-SNAPSHOT released. New Validator at https://oss.sonatype.org/service/local/artifact/maven/redirect?r=snapshots&g=ca.uhn.hapi.fhir&a=org.hl7.fhir.validation.cli&v=3.8.4-SNAPSHOT&e=jar, and also deployed at https://fhir.github.io/latest-ig-publisher/org.hl7.fhir.validator.jar" --config-file zuliprc
 
 echo ===============================================================
 echo all done