why RANDR 1.4 revert from xorg

[FloraGui at viatech.com.cn]

Hi All:

         I want to know now last xorg version support which RandR
extension version? RandR1.3, RandR1.4 or RandR1.5, 

I see the changelist from cgit,  

we add RandR1.4 support in 

 
http://cgit.freedesktop.org/xorg/xserver/commit/randr?id=afb6ebf1d582934
6c40fe1053c9f50afe926e6c6

but revert it in 

http://cgit.freedesktop.org/xorg/xserver/commit/randr?id=9f47780ecdc7693
f756587a758ec0141e75cb1eb

         so now I am very confused about the xorg RandR extension
version status, why we need to revert RandR1.4? 

         Does anyone has the info about this?  Thanks in advance!

BRS

Flora

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