I Run Mac 10.8.4 And Minecraft Was Crashing For Me Last Night I Could Not get On ??? Is It Fixed Is Their Going To Be Another Opdate Because Minecraft I Play 24/7 This Realy Stinks

Put the summary of the bug you're having here
The Bug Is Whenever I Type A Message It Crashes My Computer
*What I expected to happen was...:*It Would Send The Message But I Could Do Commands
Describe what you thought should happen here It Should Send The Message And I Should Get An Awnser

*What actually happened was...:*It Crashed
Describe what happened herI Was Typing A Message I Pressed Enter And My Compurter Crashed
Steps to Reproduce:
1. Go On OS X 10.8.4
2. ...Go On Minecraft
3. ...Type A Message And Then It Crashes But Not Like A Command