Welcome to the HCL Connections Product Ideas Lab! The place where you can submit product ideas and enhancement request. We encourage you to participate by voting on, commenting on, and creating new ideas. All new ideas will be evaluated by the HCL Product Management & Engineering teams, and the next steps will be communicated. While not all submitted ideas will be executed upon, community feedback will play a key role in influencing which ideas are and when they will be implemented.
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and O365 one drive has it too https://www.microsoft.com/en-us/microsoft-365/blog/2017/07/19/expanding-onedrive-version-history-support-file-types/
box.com has it too, it is often call "version history" https://community.box.com/t5/Organizing-and-Tracking-Content/Accessing-Version-History/ta-p/50452
Compared to file sync services such as google drive or dropbox, the "My Drive" in the IBM Connections cloud lacks a proper version history which puts all files in "my drive" at risk to loose data