Product updatesPick privacy and control your UTXOs with the latest Trezor Suite update.

An update for Trezor Suite (version 22.9.3) is now ready to install. To download and apply the update, open Trezor Suite and follow the on-screen instructions. Changes included in this update are also listed in the release notes for this version.

Dozens of features to discover.Try Suite now.

Try out new Trezor Suite features a week before official release when you sign up for the Early Access Program in Application Settings! Since August, we have begun releasing new updates in stages to smaller groups of users, so you may not receive the update prompt until several days after this announcement.

Coin control is an advanced feature that allows you to specify which UTXOs you want to spend in a transaction. Used properly, it can improve privacy, though we only recommend that you use it once you are familiar with the principles.

Your Bitcoin wallet balance is made up of many unspent transaction outputs (UTXOs) from incoming transactions or leftover change from outgoing payments.

When making a payment, your wallet may need to spend the contents of several UTXOs to make up the total purchase amount. Without Coin control, your wallet automatically chooses which to spend, favoring the cheapest option.

Each of those UTXOs has its own lineage of previous transactions, some of which may offer hints that reveal information about you that you don’t want to share. To protect your privacy, you can enable Coin control and specify which particular UTXOs to use in a transaction.

One useful application of Coin control is to manage any coins where you have been made to give up identifying documents to acquire them, such as an exchange. Keeping these coins separate through labeling and Coin control can help you stay safe if the exchange one day leaks those documents.

The best place to learn how to use new features is directly in Trezor Suite. Click on the lightbulb icon in the bottom right of the app and you’ll find the following instructions in the Trezor Suite guide:

Remember, your choice of UTXOs must cover at least the amount being sent and the transaction fees. Avoid using low-value ‘dust’ UTXOs of 546 sats or less, as you will overpay in fees.

Keeping track of your unspent outputs takes maintenance. Make effective use of the Labeling feature to know where certain outputs have come from.

To benefit from the extra privacy, you may wish to segregate UTXOs from anonymous sources on a separate wallet or behind a passphrase so they do not mix with others.

Users who don’t feel confident using Coin control can look forward to the CoinJoin mixing feature coming next year.

As seen in the examples, you can now display all Bitcoin balances in satoshis. A satoshi is one-hundred millionth of a Bitcoin, and makes it easier to account for smaller balances.

Enable satoshis as your unit of account by clicking on your Bitcoin balance, or by going to Application Settings and choosing from the Bitcoin units dropdown menu.

Exports of your transaction history have been made more intuitive with localized timestamps, distinct rows for each output, and improved fee units and labels.

If you use Tor to protect your privacy in Trezor Suite, you will now see a progress bar which indicates the status of your Tor connection.

This is done to protect your privacy, so you don’t proceed to your accounts until properly routed through Tor.

Coin control in Trezor Suite was originally published in Trezor Blog on Medium, where people are continuing the conversation by highlighting and responding to this story.

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