We've now released pre-release 7 to fix a few more bugs.

Fixed Bugs in 1.16 Pre-Release 7

MC-176447 Striders left/right leg uses the same texture
MC-180467 World Border is no longer fully solid
MC-183673 Skeletons not spawning frequently in Soul Sand Valley
MC-185126 Unable to jump one block high from flowing lava that has level 3 or lower
MC-186228 Zombified piglins' sleeve layers are not held upwards like their arms
MC-188552 Zombified Piglins drop less XP than before
MC-188838 Heads and skulls on a wall cause z-fighting
MC-189824 Overworld/general gameplay music can play in the nether in creative mode
MC-189846 Turtle eggs hatching broken, game checking for sand one block too deep
MC-189856 Unable to set nether portal block with /setblock or /fill
MC-189867 Cannot use /setblock and /fill to place blocks in positions they cannot normally be in
MC-189868 Player gets set on fire and extinguished continuously when standing in fire in Creative mode
MC-189895 Redstone in jungle temple / pyramid no longer connects to blocks and redstone components properly
MC-189905 The player can get stuck inside of the world border
MC-189971 Clicking the "Take me back" button causes translucent blocks to stop rendering

Minecraft 1.16 Pre-Release 7