Download links for the most recent versions:
https://updates.glyphsapp.com/Glyphs3.0.2-3051.zip
https://updates.glyphsapp.com/Glyphs3.0.2-3050.zip
https://updates.glyphsapp.com/Glyphs3.0.2-3049.zip
https://updates.glyphsapp.com/Glyphs3.0.2-3048.zip
You get the idea. More in this tutorial.