Bitcoin Forum

after Electrum presented a new version today, the Phoenix wallet has now also published a new release with the 2.2.0 version
this release includes the new feature 'swaproot'. it is a new swap-in protocol that leverages powerful new features - you can find more information in the following blog entry:
https://acinq.co/blog/phoenix-swaproot (https://acinq.co/blog/phoenix-swaproot)
https://github.com/ACINQ/phoenix/releases (https://github.com/ACINQ/phoenix/releases)

so them new design for Swaproot privacy is to use is Taproot to hide pay-to-script transactions and miniscript for recovery swap-in.

https://acinq.co/blog/phoenix-swaproot_files/swapin-script-description.png

I liked the idea, especially since there is no longer a static address so everyone can know that you are using Phoenix.

This is another huge impact improvement from Acinq, their efforts pushing the on chain efficiency of Lightning wallets allows Bitcoin to sustain a higher total number of users.

the new 2.2.0 version brings better privacy because there are no more static receiving addresses and by merging the signatures through musig2, you have up to 27% lower onchain transaction fees when opening the channel

This is due to Taproot and the 27% reduction is for transactions containing 3 inputs and could be more based on the number of inputs.
https://bitcoinops.org/en/tools/calc-size/

Their use of miniscript descriptors and script-path spending demonstrates how Taproot can be used to improve privacy instead of spamming.

since yesterday there is the new 2.2.1 release, which includes the following fixes:

• fix a crash when receiving background payments
• fix a backend issue that affected auto wakeup/payment reception on ios

https://github.com/ACINQ/phoenix/releases (https://github.com/ACINQ/phoenix/releases)