i didn't get that
when the server is updated should i update planeshift or should i redownload it?
That depends on what version you already have. If you have 0.4.03 (lately only working on the laanx server), you need to download a new install. Either use the direct links bovek provided (see above), or download the previous release candidate from the link ON THE NEWS PAGE, and update from there.
If you already had the release candidate (working only on ezpcusa), you should be able to just update.