# Detailed Primers

These chapters preserve the upstream primer content step by step so the direct guide does not lose version-specific detail.

Read them in order:

- [1.21.1 -> 1.21.2/3](1.21.2-from-1.21.1.md)
- [1.21.2/3 -> 1.21.4](1.21.4-from-1.21.2-3.md)
- [1.21.4 -> 1.21.5](1.21.5-from-1.21.4.md)
- [1.21.5 -> 1.21.6](1.21.6-from-1.21.5.md)
- [1.21.6 -> 1.21.7](1.21.7-from-1.21.6.md)
- [1.21.7 -> 1.21.8](1.21.8-from-1.21.7.md)
- [1.21.8 -> 1.21.9](1.21.9-from-1.21.8.md)
- [1.21.9 -> 1.21.10](1.21.10-from-1.21.9.md)
- [1.21.10 -> 1.21.11](1.21.11-from-1.21.10.md)
- [1.21.11 -> 26.1](26.1-from-1.21.11.md)