The last version of Real Studio was released over six years ago. We still build our plugins for support with Real Studio (and REALbasic), but don't put them on the public download site anymore.
A few customers still need to use Real Studio for various reasons, but 99% of the plugin users are now using Xojo.
If you need new plugins for Real Studio or REALbasic in the future, please email us to get the current link to download them. We'll keep you on a list, so we can inform you if the download link changes or anything to the plugin related to the use with Real Studio or REALbasic.
Eventually there will be the day where we can stop building them.