You should not have version in the map name, because you just break server, and people like me will be fine because I do not need to investigate too long to find why it broke and how to fix it, but most people will now have a version mismatch in their server for people who did not previously download the map with old name and will be unable to fix it because they will not have problem themselves.

Please use a unique filename without version in it, and do not change it every update (maybe next update rename map to KF-DeadShore.kfm instead of KF-DeadShore_159.kfm)

I only found out the problem when a friend of mine tried to join me (he didn't have the previous version downloaded so he had an 'error opening file' because his game was looking for the version 157 when the workshop item had version 158.

Versioning WAS good for redirect only back in the time but this is not how workshop works. Server will auto update as well as clients when you push an update, and file name should not change or problem will occur.

Thanks for thinking about that issue for next update (or maybe do it now with this current version) this way next update there will be no problem for anyone).