When developing the first version of Algolia Search, a data update API was created that allowed users to send modified data to Algolia as soon as changes appeared. However, this approach proved difficult for big customers with existing infrastructure, leading to the development of batch updates on a regular basis. To simplify the process, Algolia introduced a "move" command that allows users to atomically update their index by moving it to a new name, eliminating the need for modifications or checks on indexing status. This operation is supported in multiple API clients and integrates well with Ruby on Rails, making it an elegant solution for developers to ensure data consistency and accuracy.