This is listed as one of the enhancements
The addition of Forward Looking Terrain Avoidance (FLTA) audible and visual terrain proximity alerts, including, “terrain ahead, pull up,” “obstacle ahead, pull up” and “wire ahead.” An aural “five-hundred” annunciation is also available when the aircraft is on approach to land. These new alerts are available as a free feature.
which is curious since surely this is standard GPWS behaviour?
Which version had the “DIY glideslope”?
Why is that curious Peter? They are providing a Class A TAWS system via the GTN. This seems to be a free partial Terrain system vs their official paid version.
My Garmin 496 did that, and the Aera 660 does the same.
It depends what you mean by “DIY Glideslope”.
Visual Approaches were in 6.41.
6.50 has VNAV, which could be used to the ground for a non-AIP runway.
Neither of these could be called a “DIY Glideslope” for a number of reasons, so it’s probably better to focus on what they do do, rather than confuse the issue by giving them names which could raise false expectations.
I don’t know where you get the idea you can’t talk about it. It’s in the user manual, and there is nothing in law preventing you descending for the purpose of landing in IMC if you wish, with or without aids. There is far too much talk about sweeping stuff under the carpet. That’s what engenders all the rumours and innuendo.
That thread was talking about visual approaches to AIP runways, which now have uncertified and unsurveyed LPV like approaches. That was in v6.41.
What v6.50 adds is the ability to create a user waypoint at a non-AIP threshold, and another on the extended centreline and the ability to use them to route to the threshold using VNAV all the way. However, both lateral and vertical guidance will be much less accurate than LPV, and the calculations on terrain and obstacles are not done as they are with the Visual Approach. However, you will get terrain and obstacle warnings, provided you don’t mark the waypoint as an airfield (if you do, warnings are suppressed.)
The easiest thing would be to come to Epsom and I can show you it all working on the sim.