Why does sbt 0.13.9 report that it is 0.13.8?

Question

I downloaded and installed sbt-0.13.9.msifrom the official sbt website. However, he reports that this is actually 0.13.8:

>sbt --version
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; sup
port was removed in 8.0
sbt launcher version 0.13.8

sbt about reports the same:

>sbt about
Java HotSpot(TM) 64-Bit Server VM warning: ignoring option MaxPermSize=256m; support was removed in 8.0
[info] Loading global plugins from C:\Users\$USER$\.sbt\0.13\plugins
[info] Set current project to documents (in build file:/C:/Users/$USER$/Documents/)

[info] This is sbt 0.13.8
[info] The current project is {file:/C:/Users/$USER$/Documents/}documents 0.1-SNAPSHOT
[info] The current project is built against Scala 2.10.4
[info] Available Plugins: sbt.plugins.IvyPlugin, sbt.plugins.JvmPlugin, sbt.plugins.CorePlugin, sbt.plugins.JUnitXmlReportPlugin
[info] sbt, sbt plugins, and build definitions are using Scala 2.10.4

What am I doing wrong here? Or is this a mistake?

Answer 1

sbtinstalled in 0.13.8your project configuration.

Your build.propertiesfile probably contains the linesbt.version=0.13.8

If you want your project to be versioned 0.13.9, just update the value.