Please use this thread for all general discussion and feedback related to 1.4. Please note that as it is currently beta status, it is unsupported. We do not recommend installation on production sites. If you use a third party style, check with the author that it is compatible, before upgrading, otherwise certain features and functionality will not work and you will need to wait for an updated release. Likewise for add-ons. Support issues should be posted in the relevant threads (for add-ons) and forums.