It appears Linode removed the 768 and 1536 plans, renamed the 1024/2048/4096 plans to 1GB/2GB/4GB, and added an 8GB plan. They also added a row in the table showing CPU priority. The 512 plan is unchanged, as are specs and prices for the other three remaining plans.
They didn't actually add an 8GB plan, they've always had larger plans, just too many to display on the landing page. If you went into pricing or tried to signup, the larger plans were always available. Since they scrubbed some plans I guess there's room for the 8GB on the landing page now.
http://web.archive.org/web/20110713211922/http://www.linode....
It appears Linode removed the 768 and 1536 plans, renamed the 1024/2048/4096 plans to 1GB/2GB/4GB, and added an 8GB plan. They also added a row in the table showing CPU priority. The 512 plan is unchanged, as are specs and prices for the other three remaining plans.