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The W3C’s own pages on CSS have a list showing the current status of all of the modules, which should be your first port of call if you want to know what’s on the horizon. Each of the modules is shown with its current and upcoming status—for example, the Backgrounds and Borders module currently has Candidate Recommendation (CR) status and should soon become a Proposed Recommendation (PR)—and all are grouped by priority, giving some indication of how likely they are to be accepted. (For example, the Multi-column Layout Module you learned about in Chapter 7 is High Priority, so you can expect to see it fast-tracked through the process.)
Below the summary list, each module’s journey through the recommendation process is shown, so you can see its history. Each version is archived and listed so you can, if you so wish, take a look at which properties survived and which got culled: