Can you explain what is meant by a 'heritage project' in software development?

The term "legacy project" in software development usually refers to a project inherited from a previous team or version, that is:

• An existing project with a development history.
• It often contains outdated code, and documentation may be incomplete.
• It requires support, bug fixes, and new feature additions.
• It often involves understanding someone else's code and architecture.

For example, if a new team takes over an application developed several years ago and now needs to develop it further — this is a legacy project.

Working with such projects requires carefulness, understanding of architecture, and often refactoring to improve code quality.