: Windows 10 or higher; Windows Server 2016 or higher. macOS : macOS 10.15 Catalina or newer. Linux : Linux kernel version 2.6.32 or later. Memory : At least 1 GB of RAM is recommended. Step 2: Download Go 1.21
How to Download Go 1.21: Complete Installation Guide Released on , Go 1.21 is a landmark version of the Go programming language that introduced major language features like built-in min , max , and clear functions, alongside full support for Profile-Guided Optimization (PGO). While newer versions like Go 1.26 are now available as of early 2026, many developers still need to download Go 1.21 for maintaining legacy systems or specific project dependencies. Step 1: Check System Requirements download go 1.21
Because Go 1.21 is no longer the "latest" stable version, you must find it in the official archives. Go Wiki: Minimum Requirements : Windows 10 or higher; Windows Server 2016 or higher
Before you download, ensure your machine meets the minimum requirements for Go 1.21: Memory : At least 1 GB of RAM is recommended