EndNote 7.7 and MacOS Sierra

Its so frustrating that EndNote just can’t keep up with Apple updating their software.  It is mid-September.  Apple released macOS Sierra Beta 1 on June 13.  The EndNote team is that small or that ignorant that they can’t adapt the code of EndNote in the 3 months Apple gives them?  Its really sad that we pay for a product that cannot keep up with updates that they were given plenty of warning to.  The same thing has happened the past 3 updates from Apple.  I really wish there was a better competitor to EndNote, because Thomson Reuters really does not keep this product up to quality.