too slow! 512MB memory phone can not upgrade Win10 mobile version official version

        IT Home News March 18, Microsoft announced the first official WP8.1 upgrade Win10 Mobile version of the system models, including Lumia640, Lumia640 XL, Lumia930, Lumia1520, etc., but we found the first models only 1GB memory version, now Microsoft Windows Insider official account represents: Win10 mobile has no plans to be pushed to 512MB of memory WP8.1 phone.

Windows Phone users have asked, when similar Lumia635 512MB of memory models Win10 Mobile push the official version, Windows Insider said there are no plans to move Win10 version pushed to 512MB of memory models.
If so, then like a Lumia620, Lumia720, Lumia520, Lumia630 (512MB version) can not be obtained Win10 Mobile official version update. So far, the Lumia 520 is the most widely held Windows Phone.

But when the netizen further stated that the Lumia 635 with 512MB of memory can upgrade the Win10 Mobile preview version, and it is also very good to use. Windows Insider Re: The reason why there is no plan to push, because based on feedback and performance, 512MB of memory devices represent user feedback, Win10 Mobile experience does not meet expectations.

The netizens under the bottom have blown up the pot. "Are you teasing me?" "It’s a dog." If you don't give an upgrade, don't you upgrade? Even the low-end phones of the Lumia430 are upgraded.
It seems that Microsoft has not learned from the bad influence that WP7 can't upgrade WP8. Moreover, 512MB memory phones including Lumia 630 and Lumia 520 can be upgraded to Win10 Mobile preview. Why can't you upgrade Win10 mobile official version? I hope Microsoft will pay attention to this issue, and IT House will continue to pay attention to Microsoft news.