Description

As explained in SERVER-43014, this note from the BSON Types page is not accurate:

Changed in version 2.6: Previously, the server would only replace empty timestamp values in the first two fields, including _id, of an inserted document. Now MongoDB will replace any top-level field.

Instead, it should read something like the following:

Changed in version 2.6: Previously, the server would only replace the first empty timestamp value in the document. In the case where _id was an empty timestamp, it was always the first and only field replaced. Now, MongoDB will always insert the _id field as-is and will not attempt to expand it if it is an empty timestamp, but will replace all other top-level empty timestamp fields.

Scope of changes

Impact to Other Docs

MVP (Work and Date)

Resources (Scope or Design Docs, Invision, etc.)