What is Object Versioning in GCP?

In GCP Object versioning is used to retrieve objects which are overwritten or deleted. Object versioning increases storage costs but it provides security for objects when they are deleted or overwritten. On enabling the object versioning in the GCP bucket, a noncurrent version of the object is created every time when the object is overwritten or deleted. The properties used to identify a version of the object are generation and meta generation. Generation identifies the content generation while meta generation identifies the metadata generation.