如果原始许可证是在一年前购买的，那么可以将Vivado升级到最新版本吗？

IP版本限制遵循与Vivado版本限制相同的规则，但请注意，某些IP可能需要许可证中的特定“功能名称”才能使用。
您无法在Vivado中选择要生成的旧版IP，但是如果IP没有添加任何主要功能，它可能会保留在先前版本中使用的旧版本限制。
例如，2018.2中有一个以太网IP核，其最低版本限制为2015.04，以便使用它。
如果版本限制晚于许可证声明的版本限制，则无法使用。
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以下为原文

IP version limits follow the same rules as the Vivado version limits, however note that certain IP's may require specific 'feature names' in the license in order to be used.
 
You cannot select older versions of an IP to generate in Vivado, however it is possible that if an IP hasn't had any major features added to it, it will retain an older version limit it used in a previous version.
 
As an example, there is an Ethernet IP core in 2018.2 has a minimum version limit of 2015.04 in order to use it.
 
If the version limit is later than what your license states, it cannot be used.
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你可以更新
但你只能使用你拥有的牌， 
否则工具将恢复为Web包，限制版本。



以下为原文

You can update
 
but you will only be able to use the bits you have licence for,
   else the tools revert to the web pack, limited version.
 
 
 

你是什​​么意思“只使用你的牌照”？
您指的是旧版本能够支持的合成/实现位文件的生成，而不是新版本可以支持的更新设备吗？



以下为原文

What do you mean "only use bit you are license for" ?
 
Are you referring to the generation of the synthesis/implementation bit file that the older version is able to support and not newer device that the new version could support?
 

快速检查您的许可证文件将会看到您拥有的内容
从窗口开始菜单中查看xilinx许可证向导
这将显示您获得许可的内容以及版本或日期等限制，



以下为原文

A quick check of your licence file will see what you have
 
see the xilinx licence wizard from the window start menu
 
that will show what you are licenced for and the limits such as versions or dates,