This release brings experimental taproot support including tr() descriptors, taproot PSBTs, signing key and script spend taproot PSBTs, and tr() in descriptor! macros. The release also bring a new coin selection algorithm OldestFirstCoinSelection, a sqlite-db fix, and major dependency updates. See below for the changes.

What's Changed

• Release 0.18.0 by @notmandatory in #584
• Expose bip39::Error by @evanlinjin in #582
• add OldestFirstCoinSelection by @bruteforcecat in #557
• Bump MSRV to 1.56 by @afilini in #596
• Fix typo in docs for TxBuilder allow_shrinking method by @thunderbiscuit in #599
• Change wallet::get_funded_wallet to return Wallet by @notmandatory in #600
• wrong Network path fixed by @waterst0ne in #602
• [blockchain] Add traits to reuse Blockchains across multiple wallets by @afilini in #569
• Upgrade to rust-bitcoin 0.28 by @afilini in #606
• unpinning dependency tokio to just 1 by @ulrichard in #604
• Populate the redeemScript for sh(wsh(sortedmulti())) by @afilini in #610
• Fix sqlite database set_utxo to insert or update utxos by @notmandatory in #605
• Add support for Taproot and tr() descriptors by @afilini in #593
• Fix index out of bound error by @bonomat in #619
• rpc: use importdescriptors with Core >= 0.21 by @afilini in #628