从18.04升级到20.04是否可用?

I'm surprised the answer to this isn't obvious after a google searches and articles read. But I tried to upgrade my Ubuntu v18.04 to v20.04 today. First I tried the instruction here: https://linuxconfig.org/how-to-upgrade-ubuntu-to-20-04-lts-focal-fossa I got a ~"No new release found message". On that, their suggestion is: The first and recommended approach is to simply wait. Direct upgrades from Ubuntu 18.04 LTS to Ubuntu 20.04 Focal Fossa LTS will most likely be unavailable until late July 2020.

Then I tried here: https://www.cyberciti.biz/faq/upgrade-ubuntu-18-04-to-20-04-lts-using-command-line/ Got this message in my (bash) console: "Checking for a new Ubuntu release There is no development version of an LTS available."

这让我感到困惑,因为我认为4月23日是这一天。然后我在Google上看到了这一点: 在系统设置中打开“软件和更新”设置。选择第三个选项卡,称为“更新”。如果您使用的是18.04 LTS,则将“通知我新的Ubuntu版本”下拉菜单设置为“对于长期支持版本”;如果您使用的是19.10,请将其设置为“对于任何新版本”。 2020年4月28日

好的,因为这正是我的“软件和更新”设置中所设置的,所以我可以坐直直到7月下旬吗?这些命令v20.04可用时,我会得到提示吗?