Has been released with a new set of tools. ADT skipped from version 0.9.9 to 8.0.0, and you will get this:
error: Multiple substitutions specified in non-positional format; did you mean to add the formatted=”false” attribute
If you had something like
<string name="loading">my key %s is associated with a value of %s</string>
The reason is, Android now enforce substitution parameter order, you have to made the above.
<string name="loading">my key %1$s is associated with a value of %2$s</string>
This change is possibly due to internationalization problems, in some languages the second parameter should appear first.