The update will be available for 36 Lumia models

[Justin_wp]

Lumia 1020
Lumia 1320
Lumia 1520
Lumia 520
Lumia 525
Lumia 526
Lumia 530
Lumia 530 Dual Sim
Lumia 535
Lumia 620
Lumia 625
Lumia 630
Lumia 630 Dual Sim
Lumia 635
Lumia 636
Lumia 638
Lumia 720
Lumia 730
Lumia 730 Dual SIM
Lumia 735
Lumia 810
Lumia 820
Lumia 822
Lumia 830
Lumia 920
Lumia 925
Lumia 928
Lumia ICON
Microsoft Lumia 430
Microsoft Lumia 435
Microsoft Lumia 435 Dual SIM
Microsoft Lumia 435 Dual SIM DTV
Microsoft Lumia 532
Microsoft Lumia 532 Dual SIM
Microsoft Lumia 640 Dual SIM
Microsoft Lumia 535 Dual SIM

 

[Guytronic]

True!

More here:
Next Windows 10 for phones build will expand to a massive number of devices | Windows Central