The game crashes when I go to a certain place on an old world that I've had since beta 1.6. It only happens when I load it on 14w25a or b and any older versions load up fine. The crash report is in the attachment.
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I'm no expert, but, reading through the crash log, it seems that the data for rendering the direction the chest is facing has become too outdated for the new snapshot (a lot of rendering changes were implemented in 14w25a/b).
Yeah I decided to check out the log in detail and found out using mcedit that it was an old dungeon chest that has been there since b1.6. I might have to go through and delete all the dungeon chests in mcedit.