diff --git a/client/source/dlversion.inc b/client/source/dlversion.inc
index 4303da4..2244eee 100644
--- a/client/source/dlversion.inc
+++ b/client/source/dlversion.inc
@@ -2,5 +2,5 @@ const
   CDlMajorVersion: Integer = {MAJOR}1{/MAJOR};
   CDlMinorVersion: Integer = {MINOR}0{/MINOR};
   CDlPatchVersion: Integer = {PATCH}1{/PATCH};
-  CDlIsDevVersion: Boolean = {DEV}False{/DEV};
+  CDlIsDevVersion: Boolean = {DEV}True{/DEV};
   CDlCommit: string = {COMMIT}'unversioned'{/COMMIT};
diff --git a/companion/delphilint-vscode/package.json b/companion/delphilint-vscode/package.json
index 85864a9..5f79125 100644
--- a/companion/delphilint-vscode/package.json
+++ b/companion/delphilint-vscode/package.json
@@ -8,7 +8,7 @@
     "url": "https://www.integradev.com.au/"
   },
   "license": "LGPL-3.0-or-later",
-  "version": "1.0.1",
+  "version": "1.0.1+dev",
   "preview": true,
   "engines": {
     "vscode": "^1.54.0"
diff --git a/server/delphilint-server/pom.xml b/server/delphilint-server/pom.xml
index ca3d3e0..fca3e94 100644
--- a/server/delphilint-server/pom.xml
+++ b/server/delphilint-server/pom.xml
@@ -8,7 +8,7 @@
   <parent>
       <groupId>au.com.integradev.delphilint</groupId>
       <artifactId>delphilint-parent</artifactId>
-      <version>1.0.1</version>
+      <version>1.0.1+dev.${revision}</version>
       <relativePath>../pom.xml</relativePath>
   </parent>
   
diff --git a/server/pom.xml b/server/pom.xml
index 47a3bf1..358bf0b 100644
--- a/server/pom.xml
+++ b/server/pom.xml
@@ -6,7 +6,7 @@
 
   <groupId>au.com.integradev.delphilint</groupId>
   <artifactId>delphilint-parent</artifactId>
-  <version>1.0.1</version>
+  <version>1.0.1+dev.${revision}</version>
   <packaging>pom</packaging>
 
   <modules>
diff --git a/server/sonarlint-core-overrides/pom.xml b/server/sonarlint-core-overrides/pom.xml
index 20a96c1..993b4cd 100644
--- a/server/sonarlint-core-overrides/pom.xml
+++ b/server/sonarlint-core-overrides/pom.xml
@@ -8,7 +8,7 @@
   <parent>
       <groupId>au.com.integradev.delphilint</groupId>
       <artifactId>delphilint-parent</artifactId>
-      <version>1.0.1</version>
+      <version>1.0.1+dev.${revision}</version>
       <relativePath>../pom.xml</relativePath>
   </parent>
 
diff --git a/version.txt b/version.txt
index 7f20734..e4f904e 100644
--- a/version.txt
+++ b/version.txt
@@ -1 +1 @@
-1.0.1
\ No newline at end of file
+1.0.1+dev.#
\ No newline at end of file