D2 pilot watch devices (all generations)

This is a central topic with links to details, bugs and other information on the firmware releases for Garmin's D2 pilot watches. The latest firmwares are as follows: [TABLE="border: 1, cellpadding: 1, width: 650"]
[TR]
[TD]Device[/TD]
[TD]Firmware[/TD]
[TD]Released [/TD]
[TD]Forum Thread[/TD]
[/TR]
[TR]
[TD]D2 Delta[/TD]
[TD]4.50[/TD]
[TD]11-Dec-2018[/TD]
[TD]forums.garmin.com/.../TD]
[/TR]
[TR]
[TD]D2 Charlie[/TD]
[TD]5.10[/TD]
[TD]08-Jan-2019[/TD]
[TD]forums.garmin.com/.../TD]
[/TR]
[TR]
[TD]D2 Bravo Titanium[/TD]
[TD]3.00[/TD]
[TD]28-Nov-2017[/TD]
[TD]forums.garmin.com/.../TD]
[/TR]
[TR]
[TD]D2 Bravo[/TD]
[TD]4.00[/TD]
[TD]28-Nov-2017[/TD]
[TD]forums.garmin.com/.../TD]
[/TR]
[TR]
[TD]D2[/TD]
[TD]4.70[/TD]
[TD]17-Jul-2015[/TD]
[TD]forums.garmin.com/.../TD]
[/TR]
[/TABLE]
Please see the individual device/version threads to report bugs and such.