## [12.1.1] ### Changed - Update Polygon from MATIC to POL ([#26671](https://github.com/MetaMask/metamask-extension/pull/26671)) ### Fixed - Fix signature confirmation UI crash ([#26143](https://github.com/MetaMask/metamask-extension/pull/26143)) - Update current selected account when selected account is removed ([#26573](https://github.com/MetaMask/metamask-extension/pull/26573), [#26742](https://github.com/MetaMask/metamask-extension/pull/26742), [#26773](https://github.com/MetaMask/metamask-extension/pull/26773)) - This also includes a migration to reset the selected account if it's currently invalid - Prevent pending confirmations from being inaccessible after attempting to add currently selected chain ([#26726](https://github.com/MetaMask/metamask-extension/pull/26726)) ## [12.1.0] ### Added - Launched a feature displaying the percentage increase or decrease for tokens within the UI ([#24223](https://github.com/MetaMask/metamask-extension/pull/24223)) - Added a search feature to easily filter through the popular network list ([#25170](https://github.com/MetaMask/metamask-extension/pull/25170)) - Launched a new asset details page ([#24522](https://github.com/MetaMask/metamask-extension/pull/24522)) - Implemented a loader on the confirmation page during Blockaid validation ([#25477](https://github.com/MetaMask/metamask-extension/pull/25477)) - Introduced an advanced details component for transactions ([#24833](https://github.com/MetaMask/metamask-extension/pull/24833)) - Enhanced permit signatures with a simulation section ([#24862](https://github.com/MetaMask/metamask-extension/pull/24862)) - Introduced dynamic support for identifying 'buyable' networks through the Ramps API ([#24041](https://github.com/MetaMask/metamask-extension/pull/24041)) - Introduced a new notification counter over the Fox icon to display unread notifications ([#25093](https://github.com/MetaMask/metamask-extension/pull/25093)) - Improved the display of large and small token values on the permit signature page ([#25720](https://github.com/MetaMask/metamask-extension/pull/25720)) - Replaced "Approve spend limit" with "Spending cap" in the Permit signature redesign ([#25618](https://github.com/MetaMask/metamask-extension/pull/25618)) - Display ellipsis to Permit simulation fiat values ([#26001](https://github.com/MetaMask/metamask-extension/pull/26001)) - Display ellipsis for Permit values with over 15 characters ([#26458](https://github.com/MetaMask/metamask-extension/pull/26458)) ### Changed - Introduced the ability to edit custom networks directly from the modal ([#25272](https://github.com/MetaMask/metamask-extension/pull/25272)) - Launched an initial UI for editing multiple RPC URLs in the network form ([#25219](https://github.com/MetaMask/metamask-extension/pull/25219))