The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Happened as dated, per macrumors.com: "…ort 1.3 Spec Finalized With Dell having announced its upcoming 5120 x 2880 "5K" display that would b…"
VESA's own announcement confirms "VESA announced the release of the DisplayPort 1.3... standard," matching the pin's stored 15 September 2014 finalization date exactly.
KitGuru independently reports "VESA[2] on Monday released the DisplayPort 1.3 standard," corroborating the same September 2014 finalization with added detail on 8K and 4K/120Hz support.
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