The PowerShell script that can be used to download latest version of Istio analogus to https://git.io/getLatestIstio

getLatestIstio.ps1

param(
    [string] $IstioVersion = "0.3.0"
)

$url = "https://github.com/istio/istio/releases/download/$($IstioVersion)/istio_$($IstioVersion)_win.zip"
$Path = Get-Location
$output = [IO.Path]::Combine($Path, "istio_$($IstioVersion)_win.zip”)
    
Write-Host "Downloading Istio from $url to path " $Path -ForegroundColor Green 
    
#Download file
(New-Object System.Net.WebClient).DownloadFile($url, $output)
    
# Unzip the Archive
Expand-Archive $output -DestinationPath $Path
    
#Set the environment variable
$IstioHome = [IO.Path]::Combine($Path, "istio-$($IstioVersion)")
    
[Environment]::SetEnvironmentVariable("ISTIO_HOME", "$IstioHome", "User")

Hi, in case anyone else is facing the same issue, I was getting this error when I tried to run the script:

Exception calling "DownloadFile" with "2" argument(s): "The request was aborted: Could not create SSL/TLS secure
channel."

But I was able to fix it with the solution here: requarks/wiki#421,
Adding [Net.ServicePointManager]::SecurityProtocol = "tls12, tls11, tls" to the top of the file fixed the issue.

had to fix the ending double quote
from
$output = [IO.Path]::Combine($Path, "istio_$($IstioVersion)win.zip”)
to
$output = [IO.Path]::Combine($Path, "istio$($IstioVersion)_win.zip")

the $url underscore changed to dash
From
$url = "https://github.com/istio/istio/releases/download/$($IstioVersion)/istio_$($IstioVersion)_win.zip"
to
$url = "https://github.com/istio/istio/releases/download/$($IstioVersion)/istio-$($IstioVersion)-win.zip"

This is my updated working script for the latest version (as today):

param(
    [string] $IstioVersion = "1.2.5"
)

$url = "https://github.com/istio/istio/releases/download/$($IstioVersion)/istio-$($IstioVersion)-win.zip"
$Path = Get-Location
$output = [IO.Path]::Combine($Path, "istio-$($IstioVersion)-win.zip")
    
Write-Host "Downloading Istio from $url to path " $Path -ForegroundColor Green 
    
#Download file
(New-Object System.Net.WebClient).DownloadFile($url, $output)
    
# Unzip the Archive
Expand-Archive $output -DestinationPath $Path
    
#Set the environment variable
$IstioHome = [IO.Path]::Combine($Path, "istio-$($IstioVersion)")
    
[Environment]::SetEnvironmentVariable("ISTIO_HOME", "$IstioHome", "User")

This is my updated working script for the latest version (as today):

param(
    [string] $IstioVersion = "1.2.5"
)

$url = "https://github.com/istio/istio/releases/download/$($IstioVersion)/istio-$($IstioVersion)-win.zip"
$Path = Get-Location
$output = [IO.Path]::Combine($Path, "istio-$($IstioVersion)-win.zip")
    
Write-Host "Downloading Istio from $url to path " $Path -ForegroundColor Green 
    
#Download file
(New-Object System.Net.WebClient).DownloadFile($url, $output)
    
# Unzip the Archive
Expand-Archive $output -DestinationPath $Path
    
#Set the environment variable
$IstioHome = [IO.Path]::Combine($Path, "istio-$($IstioVersion)")
    
[Environment]::SetEnvironmentVariable("ISTIO_HOME", "$IstioHome", "User")

Awsome, thanks the last script works greate.