The console can __not__ be used with gfx.start() on a screen. You don't have to gfx.render() while print()ing, but you should do it when you are in the main loop.
The SSL sockets don't work with Citra.
The new image formats are loaded with stb_image, and the textures are saved with stb_image_write.
https://github.com/nothings/stb
You can now load GIFs (not animated), PSD, TGA, HDR, PIC and PNM.
The texture loading still uses sfil for JPEG, PNG, and BMP. You can force the use of stbi by loading with
the "type" argument in texture.load() set to 242 (or anything 5<x<250, but 242 is a good value).
The :save() formats are PNG and BMP only.
Tremor is extremly similar to libogg but only uses integers (and doesn't provide an encoder). The playing problem with libvorbis was probably a float-precision related issue.
No need for make build-all.
As the color order of the sf2dlib changed, you have to change it in your code, or use the color.hex() function.
To fix the problems, just change "0xRRGGBBAA" to "0xAABBGGRR".
Also, the shader compiler changed to Picasso, so you'll need it in order to compile.
https://github.com/fincs/picasso
