Minecraft Alpha v1.2.6 is a historical version of the Java Edition originally released on December 3, 2010. If you are looking for a download link, , which provides verified versions of historical releases. How to Download Officially
To summarize, the safest and only legal is hidden inside your official Minecraft Launcher under the "old_alpha a1.2.6" option. Minecraft 1.2.6 Alpha Download LINK
Go to the Installations tab and click New installation . Minecraft Alpha v1
This version is often called the "Golden Age" of Minecraft for its simple, intense, and atmospheric survival gameplay, defined by the iconic Halloween Update features. ✨ Why Alpha 1.2.6 is Legendary The Nether: and atmospheric survival gameplay
If you are looking for specific server files or archived jars, you can find them on community-run databases: MCVersions.net