BTC top has signaled for Taproot in their most recently mined block. As of 0933 EST 2021-05-17 94.33% of mining power supports Taproot.

Taproot will not be activated during this difficulty cycle, but there is a good chance we will hit 90% total block support during the next difficulty adjustment period, which behind in approximately ten days.

submitted by /u/charlespax
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Source and link to Reddit topic: 94.33% of mining power has signaled for Taproot