The new Google Sheets has finally arrived and you might be noticing a few differences. While there are plenty of improvements to be excited about (Check out the new Google Sheets), there are also some differences to be aware of and a few kinks being worked on. For instance, you may have noticed that you aren't able to publish a new Sheet. This is a known issues with Google and we will update you as we're made aware items have been fixed. There are also some items no longer being supported in the new Sheets. For more information, see Unsupported features in the new Google Sheets.
Another change in the new Google Sheets is the Script Gallery being replaced with Add-ons. At this time, the list of Add-ons does appear smaller than the options in the Script Gallery. We expect this to change often as individuals begin creating specifically for the Add-on feature. If you find you need to access something from the Script Gallery, you can create a spreadsheet with the old Sheets at g.co/oldsheets.
For more information on known issues and permanent changes in the new Sheets, see Known Issues in the New Sheets.