diff --git a/README.md b/README.md
index 0de325a49..00066ca53 100644
--- a/README.md
+++ b/README.md
@@ -27,7 +27,7 @@ This is the 0.13.x series of sbt.
 
 		$ git checkout v0.12.2
 
-	Note that sbt is always built with the previous release.  For example, the 0.12.2 branch is built with 0.12.1, the v0.11.2 tag is built with 0.11.1, and the v0.11.0 tag is built with 0.10.1.
+	Note that sbt is always built with the previous release.  For example, the 0.12.3 branch is built with 0.12.2, the v0.11.2 tag is built with 0.11.1, and the v0.11.0 tag is built with 0.10.1.
 
 4. To build the launcher, publish all components locally, and build API and SXR documentation:
 
diff --git a/project/Sbt.scala b/project/Sbt.scala
index 4f7915824..3fb9dd680 100644
--- a/project/Sbt.scala
+++ b/project/Sbt.scala
@@ -14,7 +14,7 @@ object Sbt extends Build
 	override lazy val settings = super.settings ++ buildSettings ++ Status.settings
 	def buildSettings = Seq(
 		organization := "org.scala-sbt",
-		version := "0.12.2",
+		version := "0.12.3-RC1",
 		publishArtifact in packageDoc := false,
 		scalaVersion := "2.9.2",
 		publishMavenStyle := false,
diff --git a/src/main/conscript/sbt/launchconfig b/src/main/conscript/sbt/launchconfig
index 505820df1..09096f34b 100644
--- a/src/main/conscript/sbt/launchconfig
+++ b/src/main/conscript/sbt/launchconfig
@@ -4,7 +4,7 @@
 [app]
   org: org.scala-sbt
   name: sbt
-  version: read(sbt.version)[0.12.2]
+  version: read(sbt.version)[0.12.3-RC1]
   class: ${sbt.main.class-sbt.xMain}
   components: xsbti
   cross-versioned: true
diff --git a/src/main/conscript/scalas/launchconfig b/src/main/conscript/scalas/launchconfig
index 902b36d31..1e38c914c 100644
--- a/src/main/conscript/scalas/launchconfig
+++ b/src/main/conscript/scalas/launchconfig
@@ -4,7 +4,7 @@
 [app]
   org: org.scala-sbt
   name: sbt
-  version: 0.12.2
+  version: 0.12.3-RC1
   class: sbt.ScriptMain
   components: xsbti
   cross-versioned: true
diff --git a/src/main/conscript/screpl/launchconfig b/src/main/conscript/screpl/launchconfig
index 462d49301..0bbf216df 100644
--- a/src/main/conscript/screpl/launchconfig
+++ b/src/main/conscript/screpl/launchconfig
@@ -4,7 +4,7 @@
 [app]
   org: org.scala-sbt
   name: sbt
-  version: 0.12.2
+  version: 0.12.3-RC1
   class: sbt.ConsoleMain
   components: xsbti
   cross-versioned: true
diff --git a/src/sphinx/conf.py b/src/sphinx/conf.py
index 90dca8f3c..e0229b0fa 100644
--- a/src/sphinx/conf.py
+++ b/src/sphinx/conf.py
@@ -9,7 +9,7 @@ extensions = ['sphinxcontrib.issuetracker', 'sphinx.ext.extlinks', 'howto']
 
 project = 'sbt'
 version = '0.12'
-release = '0.12.2'
+release = '0.12.3-RC1'
 
 # General settings