After updating to the new snapshot it seems that servers do not work if they are in snapshot 13w41b. I deleted .minecraft and reinstalled but it did not help.
Linked issues
is duplicated by 4
Comments 5
Not fixed in 1.7.9 or 1.7.10 (MC-59423)
.. and MC-57903
Is this still a concern in the current Minecraft version 1.8.1 Prerelease 3 / Launcher version 1.5.3 or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.
even though they report a version mismatch, they do work. The bug is that they report a version mismatch erroneously