When will windows 10 will come for Lumia 520?

[Windows Central Question]

When will windows 10 will come for Lumia 520?

 

[charlatan1978]

Do you mean 1. the Insider preview or 2. the official Windows 10 mobile?
The answers
1. You can already get the Insider preview (see Supported phones for Windows Insider Preview - Microsoft Windows)
2. It hasn't been announced, probably before the end of the year.

 

[Cryio]

February+ 2016

 

[nareshkumarcool]

Before the end of this year