7-Zip for 64-bit Windows x64:
https://7-zip.org/a/7z1900-x64.exe
or
https://7-zip.org/a/7z1900-x64.msi
7-Zip for 32-bit Windows:
https://7-zip.org/a/7z1900.exe
or
https://7-zip.org/a/7z1900.msi
What's new after 7-Zip 18.06:

  • Encryption strength for 7z archives was increased:
    the size of random initialization vector was increased from 64-bit to 128-bit,
    and the pseudo-random number generator was improved.
  • Some bugs were fixed.