Perhaps I'm missing something obvious, but I seem unable to install X-Pack 5.0.1.  Just a few days ago I had installed the ELK stack on a Debian 8 system using packages.  I performed an sudo apt-get upgrade and got the 5.0.1 elasticsearch and kibana, but not x-pack.  So I tried installing the .zip manually.  If I try:
sudo /usr/share/elasticsearch/bin/elasticsearch-plugin install file:///home/jtk/dl/x-pack-5.0.1.zip  -v
I get the following output:
Retrieving zip from file:///home/jtk/dl/x-pack-5.0.1.zip
[=================================================] 100%   
- Plugin information:
Name: x-pack
Description: Elasticsearch Expanded Pack Plugin
Version: 5.0.1
 * Classname: org.elasticsearch.xpack.XPackPlugin
Exception in thread "main" java.lang.IllegalArgumentException: Plugin [x-pack] is incompatible with Elasticsearch [5.0.1]. Was designed for version [5.0.0]
        at org.elasticsearch.plugins.PluginInfo.readFromProperties(PluginInfo.java:108)
        at org.elasticsearch.plugins.PluginsService.getPluginBundles(PluginsService.java:370)
        at org.elasticsearch.plugins.InstallPluginCommand.jarHellCheck(InstallPluginCommand.java:448)
        at org.elasticsearch.plugins.InstallPluginCommand.verify(InstallPluginCommand.java:429)
        at org.elasticsearch.plugins.InstallPluginCommand.install(InstallPluginCommand.java:471)
        at org.elasticsearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:209)
        at org.elasticsearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:192)
        at org.elasticsearch.cli.SettingCommand.execute(SettingCommand.java:54)
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:96)
        at org.elasticsearch.cli.MultiCommand.execute(MultiCommand.java:69)
        at org.elasticsearch.cli.Command.mainWithoutErrorHandling(Command.java:96)
        at org.elasticsearch.cli.Command.main(Command.java:62)
        at org.elasticsearch.plugins.PluginCli.main(PluginCli.java:42)
Perhaps the new .zip file is missing something or I am? Thanks for any pointers.