How could I know the specify version typescript that volar and vue-tsc used?

[ishowman]

Currently, volar is an plugin that need to be updated in VSCode, and vue-tsc is an package that need to be updated in package.json.
Will it cause unexpected problems if both using volar and vue-tsc are not latest version?
For example, I use latest volar plugin and vue-tsc of project is not updated to latest for a long time,and someone finds some typescript error shows in VSCode, while all the rest works normally.
We all using same typescript version, and finally it is solved by update vue-tsc version.here are my questions:

• How could I know the specify version typescript that volar and vue-tsc used?
• will volar only compatible with specify vue-tsc version? If true, how can I know which vue-tsc version should I use?