If your computer is connected to internet, you should see this notification when you open AutoCAD 2014. Yes, AutoCAD SP1 is released.
Service Pack is released to fix crashes and bugs. That is why some companies wait until Service Pack 1 released before upgrading to latest release. At least with SP1 common issues are already fixed.
This is the reason why you should submit CER every time your AutoCAD crash. It will help Autodesk developers to include the fix in updates/service packs. Or even in major release.
Downloading Service Pack
You can download SP1 by clicking the notification within AutoCAD or download from website directly.
Download AutoCAD 2014 Service Pack 1 here: http://usa.autodesk.com/getdoc/id=DL22264351
Download AutoCAD LT 2014 Service Pack 1 here: http://usa.autodesk.com/getdoc/id=DL22264544
If you want to check other updates and service packs for Autodesk products, you can visit this page: http://usa.autodesk.com/support/downloads/