This means that all sharing tools that access Twitter's Count API, would no longer be able to retrieve counts data for any URLs on their network. As a result, our sharing bar utility Flare, and our Filament Pro blog analytics products will no longer be able to show the individual share counts for Twitter. This will similarly affect all 3rd party sharing tools like Flare.
Filament Pro will still be able to show your traffic, Engagement Score, Scroll Depth and Page Stickiness for visitors coming to your site from Twitter.
The Twitter share button in Flare will work as normal, as this change does not affect the overall sharing mechanism and flow.
Please see Twitter's official announcement if you have any questions.