Clients who choose to install the TWS offline platform (as opposed to the auto-updating version) are required to manually update TWS to keep their version current. While it's a good idea to periodically upgrade to ensure you have access to the newest tools and features, occasionally we require mandatory upgrades. This happens when we decommission an older version of the standalone software for security and other reasons. When you receive a notification that the version of TWS you are using will be decommissioned, this means that on a specified date you will no longer be able to log into TWS if you have not upgraded as instructed.
When you receive mandatory upgrade notifications, go to the Offline TWS section of the TWS Software download page and download a current version.