That's version 1.1.0 of the swift extension for VSCode released. You can find a list the changelog here.
Key changes include
- In-editor display of test coverage data. I found that other coverage display extensions didn't work as well with the Swift extension as I hoped so I implemented a version for the extension. You can find out more about all the test coverage tools here.
- When the SourceKit-LSP server crashes instead of just being told it has crashed you are given the option to restart the server.
- Added setting to disable C/C++ LSP support to avoid it clashing with the official C/C++ extension for VSCode. It defaults to disable if the C/C++ extension is active. You can also set it to always enabled or always disabled.