Developer console is showing security alerts on all of my cocos2d-x v2.x games with detail of using old libpng.
In cocos2d-x v2.2.6, I have found libpng two files png.h & pngconf.h with v1.2.46 and as resolution is suggested to use 1.2.56 latest version for this one.
I have submitted a build with these two updated files to see if that was the resolution. Will post if got SUCCESS.
Please if anyone have found other solution, then share.
My solution didn't work out at all. Found this link below.
http://www.bengigi.com/cocos2d-x-2-x-android-libpng-vulnerability-fix/