Vimeo has made a new statement about the situation with deprecated TLS protocols on one of their CDN providers. A Vimeo employee, Dana Cacciatore, has stated in this forum thread:
Our CDN provider has just implemented a fix that should restore playback functionality on older browsers and applications.
Please note that this is only a temporary fix. The deprecation plan of TLS 1.0/1.1 is mandated by the PCI Security Standards Council and will force numerous providers across the internet to adjust according. Our team will be working on a communication plan that outlines specific details for users who access Vimeo on older browsers and devices.
In the last few days, some of you may have noticed that the Vimeo-hosted videos are not playing on older Android devices - specifically the versions 4.x. and lower.