diff --git a/build.sbt b/build.sbt
index be66c9a7135..2b212988a84 100644
--- a/build.sbt
+++ b/build.sbt
@@ -18,9 +18,9 @@ val scalacVersion  = "2.13.6"
 val rustVersion    = "1.54.0-nightly"
 val graalVersion   = "21.1.0"
 val javaVersion    = "11"
-val ensoVersion    = "0.2.15" // Note [Engine And Launcher Version]
-val currentEdition = "2021.3" // Note [Default Editions]
-val stdLibVersion  = "0.1.0"  // Note [Standard Library Version]
+val ensoVersion    = "0.2.16-SNAPSHOT" // Note [Engine And Launcher Version]
+val currentEdition = "2021.4-SNAPSHOT" // Note [Default Editions]
+val stdLibVersion  = "0.1.0"           // Note [Standard Library Version]
 
 /* Note [Engine And Launcher Version]
  * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~