Earlier this year I bought a Lumia 645, partly because it was a good price, and partly because I expected it, along with other Lumia phones to be updated to Windows 10.  I thought the upgrade to Win 10 for the phone would be soon after the main release, but no, it looks like December 2015.  On top of this the list I saw for all regions suggests the 640 and the 645 are not on the list, not just NZ - as the list was not on Microsoft's website, I cannot be sure what the true status is.  At first I thought it might be that Cortana struggles with NZ mangled vowels and Te Reo place-names, but possibly not - as a an ex-Brit that should no concern me. 
So, can anybody provide some definitive data on Win 10 release for the Lumia 645 here in tiny NZ?