v6.2.2 - 07/16/2019

* Breaking Changes

- Disable `Enter-PSHostProcess` cmdlet when system in lock down mode (Internal 8969)

* Engine Updates and Fixes

- Create `JumpList` in STA thread as some COM APIs are strictly STA only to avoid sporadic CLR crashes (#10057, #9928) (Thanks @bergmeister!)

* Build and Packaging Improvements

- Update DotNet SDK and runtime framework version (Internal 9082, 9088, 9092)
- Make `Hashtable` case insensitivity test use current culture rather than shell to set culture (Internal 8529)
- Add automated RPM signing to release build (#10013)
- Update copyright symbol for NuGet packages (#9936)
- Bump `Microsoft.ApplicationInsights` from `2.9.1` to `2.10.0` (#9757)
- Switch from BMP to PNG for graphical MSI installer assets (#9606)
- Bump `System.Net.Http.WinHttpHandler` from `4.5.3` to `4.5.4` (#9789)
- Enable building of MSIX package (#9289, #9715)