Final answer:
A Patch is used to address small changes within nCino, specifically for defect solutions. It is distinct from a General Release, Sandbox, or Sneak Peek, focusing on immediate bug fixes and improvements.
Step-by-step explanation:
The release used to address small changes within nCino, typically for defect solutions, is known as a Patch. A patch is a software update meant specifically to fix problems, which are often referred to as 'bugs'. Patches are important because they can improve the performance of the software, fix security vulnerabilities, or improve the overall reliability of the system.
In contrast to the other options, a Sandbox is typically a testing environment, a General Release refers to a major version of the software that is made available to all users, and a Sneak Peek could be an early preview of new features or updates that are not yet generally available.