The new version of the fix expands the chunk's bounding box on all axes, instead of just the Y axis. This addresses an issue where the ender dragon could disappear from view if you looked away to the left or right.
There was also another issue I found where the MC-88176 issue would appear, but unlike the conditions described in that issue, you could still hit the entity and have the damage register. I'm not sure exactly why this happens. This version of the fix seems to have at least hidden that issue. In any case, since it is still possible to interact with the entity if/when the second issue does occur, it is a lot less game-breaking.
The new version of the fix expands the chunk's bounding box on all axes, instead of just the Y axis. This addresses an issue where the ender dragon could disappear from view if you looked away to the left or right.
There was also another issue I found where the MC-88176 issue would appear, but unlike the conditions described in that issue, you could still hit the entity and have the damage register. I'm not sure exactly why this happens. This version of the fix seems to have at least hidden that issue. In any case, since it is still possible to interact with the entity if/when the second issue does occur, it is a lot less game-breaking.