The What’s new in PowerShell v6.2 is available at – https://docs.microsoft.com/en-gb/powershell/scripting/whats-new/what-s-new-in-powershell-core-62?view=powershell-6 – together with the already existing documents for PowerShell v6.0 and v6.1.
Its worth reading through the three documents – one each for v6.0, v6.1 and v6.2 to see the whole range of changes in PowerShell core.
under: PowerShell v6