A: 1.12.2 with OptiFine and a 32-bit Java 8 installation.

In the older versions of Minecraft (specifically the Beta era), the block had a unique hitbox and collision mechanic compared to modern versions. However, the term "Solid Post" usually refers to a specific technical block or a glitched state:

As the final update of 2022, 1.19.51 focused on stability and parity between platforms.

Because 32-bit systems often have limited RAM (usually capped at 4GB), performance management is the "secret" to a smooth 1.19.51 experience: