Perhaps a nice objective tag, rather than README text. If a feature is new, add a start_date tag.
The editor can then have options.. 1, Alert the user if the start date is more recent than the layers currently displayed. 2. Visually indicate if the start_date is within a configurable recency (say, draw a halo around objects constructed in the past two years, or so). There is also some scope for automated analysis, rather than depend on free text. Ian.
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