Beta is a term used in the software development industry to describe a stage of the software development lifecycle. The beta stage comes after the development stage and precedes the release of the final product to the market.
During the beta stage, software developers make the software available to a limited group of users, such as customers, partners, or beta testers, for testing and feedback. The purpose of the beta stage is to identify and fix any remaining bugs or issues with the software before its official release. This stage is crucial for ensuring the quality and reliability of the software before it is made available to the general public.
Beta software is often made available for download and use for free, although some companies may charge for access to beta releases. Beta testers can use the software and provide feedback on its features, performance, and overall user experience. This feedback can then be used by the software developers to make any necessary improvements to the product before its official release.
The beta stage is a crucial step in the software development process because it helps software developers identify and resolve any remaining issues with the product. This, in turn, helps to ensure that the final product is of high quality and meets the needs of its intended users.

Alpha Version: An alpha version is an even earlier pre-release version of software or a product that is usually made available only to internal testers or developers. It may have more bugs and fewer features than a beta version, and is used for testing and development purposes.
Release Candidate: A release candidate is a version of software or a product that is very close to the final release, and is made available to a wider audience for testing and feedback. It is considered to be a more stable and feature-complete version than a beta version.
Technical Preview: A technical preview is a pre-release version of software or a product that is made available to a limited audience for feedback and evaluation of new features or technologies. It is often used to gauge interest and gather feedback before a product is fully developed or released. Technical previews may be more stable than beta versions, but may still have significant bugs or missing features.

Beta in software development can be compared to a dress rehearsal for a play. Just as a dress rehearsal is a trial run for a play before it opens to the public, beta is a trial run for a software program before it is officially released. Just as actors in a dress rehearsal might try out their lines and movements, beta testers will use the software and provide feedback on its functionality, usability, and design. Just as a dress rehearsal might reveal problems that need to be fixed before the play opens, beta testing will reveal bugs and issues that need to be addressed before the software is released to the public. In short, beta in software development is like a dress rehearsal for a play, a trial run for the software program to identify and fix any issues before it is released to the public.