Minecraft wiki entry for Development_versions, associated text: v0.12.1 alpha build 1
v0.12.1 alpha build 10
v0.12.1 alpha build 11
v0.12.1 alpha build 12
v0.12.1 alpha build 13
v0.12.1 alpha build 2
v0.12.1 alpha build 3
v0.12.1 alpha build 4
v0.12.1 alpha build 5
v0.12.1 alpha build 6
v0.12.1 alpha build 7
v0.12.1 alpha build 8
v0.12.1 alpha build 9
Notes and references