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 thurrott.com: "…Next-Gen HoloLens is Codenamed Sydney; Arrives Q1, 2019 It was a little over a year ago, that I bro…"
Microsoft's HoloLens 2 hardware page lists the Snapdragon 850, second-generation HPU, "2k 3:2 light engines", 4-GB LPDDR4x, 64-GB storage, eye and hand tracking and a weight of "566 grams".
Wikipedia's HoloLens 2 article says it was announced on 24 February 2019 at MWC, released on 7 November 2019 at $3,500, with a "diagonal field of view of 52 degrees" against the first edition's 34.
techAU similarly reports "a new, version 2 of the HoloLens is due for release in the first quarter of 2019" codenamed "Sydney," corroborating the pin's stored Q1 2019 date, again as unconfirmed rumor rather than an official announcement.
HotHardware reports the rumor that Microsoft's[2] second-gen HoloLens, codenamed Sydney, "is going to arrive in Q1 2019," aligning with the pin's stored date, though framed as an unconfirmed rumor citing Thurrott[1] as its source.
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