--- title: "Upgrading from previous Board 12 release" slug: "upgrading-from-previous-board-12-release" description: "Follow the path to upgrade from an earlier Board 12 release: confirm prerequisites, back up, run compatibility checks, execute the update, and validate results." updated: 2025-09-19T14:54:01Z published: 2025-09-19T14:54:01Z canonical: "help.board.com/upgrading-from-previous-board-12-release" --- > ## Documentation Index > Fetch the complete documentation index at: https://help.board.com/llms.txt > Use this file to discover all available pages before exploring further. # Upgrading from previous Board 12 release Since Board 2021 Summer release is fully back-compatible with previous Board 2021 releases, the upgrade process won't require any special preparation: every Data Model created in Board 2021 Spring release environments will work seamlessly after you upgrade your solution. ## Steps for upgrading to Board 2021 Summer release 1. **Uninstall your current version of Board (on-premises customers only)** 2. **Install Board 2021 Summer release** - For Cloud customers, the upgrade process can be initiated by raising a ticket through the [Board Support Portal](https://support.board.com/). The ticket must contain your Platform name (e.g. customer1-s1.board.com). The Board Cloud Operations team will then handle your request. > [!NOTE] > *By installing Board 2021 Summer release, the chat feature will be updated to the new version and all previous chat sessions will no longer be available.* After all these steps are completed, you'll be ready to actively use your new Board Summer 2021 Release environments.