Looks like it.
But what is BIP 91???
EDIT: I found something.
https://bitcoinmagazine.com/articles/bip91-segwit-activation-kludge-should-keep-bitcoin-whole/Excerpt:
BIP91 is a proposal by Bitmain Warranty (not to be confused with Bitmain) engineer James Hilliard which was specifically designed to prevent a coin-split by making SegWit2x and BIP148 compatible.
The proposal resembles BIP148 to some extent. Upon activation of BIP91, all BIP91 nodes will reject any blocks that do not signal support for SegWit through bit 1. As such, if a majority of miners (by hash power) run BIP91, the longest valid Bitcoin chain will consist of SegWit-signaling blocks only, and all regular BIP141 SegWit nodes will activate the protocol upgrade.
Where BIP91 differs from BIP148 is that it doesn’t have a set activation date, but is instead triggered by hash power. BIP91 nodes will reject any non-SegWit signalling blocks if, and only if, 80 percent of blocks first indicate within two days that’s what they’ll do.
This indication is done with bit 4. As such, the Silbert Accord can technically be upheld — 80 percent hash power activation with bit 4 — while at the same time activating the existing SegWit proposal. And if this is done before August 1st, it’s also compatible with BIP148, since BIP148 nodes would reject non-bit 1 blocks just the same.
