8.3.21.1709_windows.rar < 2025 >

You can find official downloads and documentation on the 1C:Enterprise platform page or the 1C Online Catalog .

The .rar archive may contain the Thin Client, the Full Technological Platform, or the Training Version (e.g., training_8_3_21_1709.rar ).

After installation, you can confirm the version by clicking the "i" (Help -> About) button in the 1C:Enterprise launch window.