This release includes major changes to CRM functionality and the tax system, including integration with Avalara. There are significant changes to how CRM and tax data are stored in the database, so you may need to update customized scripts, reports, and MetaSQL queries. In addition, the deprecated portions of the Script Toolbox have been removed as previously announced, which may also require script updates.
Strict country checking is now required and how countries are stored in the database has been changed. Before upgrading to 5.0.0-alpha or later, you must install fixCountry 5.0.0-rc.3 and migrate the country data.
See the Release Notes for more information.
2018-04-17 18:00 UTC:
The original Linux build was erroneously built with version 5.5.1 of the Qt Framework when it should have been built with 5.11.2. This causes issues with the xtdesktop extension and possibly other problems. It has been replaced with a new, correct build.