Update - 1.5_01

[Mafios_X]

Bug Fixes:

Blocks can now be placed on Snow.
Rain no longer goes through translucent blocks.
Light does not go through stair blocks anymore, however if you did this in a previous update, unless the stairs are destroyed or a block adjacent is built or destroyed it will still work.
Pumpkins are no longer worn backwards.
Pumpkin and Jack-O-Lantern inventory texture is now fixed. Before, it was backwards. However, all pumpkins and jack-o-lanterns that were placed on the map before the update are backwards.
Game no longer crashes when rails are placed next to detector rails, or vice versa.
Wolves are less common than in 1.5 (but more common than in 1.4).
Blocks cannot be replaced into furnaces, thus fixing the statistic glitch.
If Minecraft detects a broken save file, it will attempt to recover the world.

New Bugs:

Many different activities will crash SMP with an "internal server error".
On some servers if a block is placed on a snow block, the action will be immediately reversed and the snow block will return and the placed block will be added back to your inventory. (May only happen when snowing)
Rain and Snow now fall through Water.
Minecart Tracks of all types' placement behaves unexpectedly, not properly orienting after placement. (Curves don't work, slopes don't work, etc.) However if the corner is replaced, it will work.
Placing blocks and/or mining, digging and/or harvesting resources with a texture pack installed rarely causes the game to crash to desktop in SSP.
If you have a single wolf it will sometimes turn into a wild wolf after you save your game. This can be fixed by taming a second wolf.
Water does not change to Ice while snowing.
Saplings do not stack to 64 all the time. (notably the original saplings from planted or rendered during previous versions)
When using a ladder and placing ladders at the same time, some ladders will appear on a different surface several blocks away.
If you are killed while having the chest GUI open and you transfer items from the chest to your inventory after you are killed, those items will be lost.
Sapling particles don't relate to the sapling placed when destroyed (i.e. Pine Sapling will show regular sapling particles)
Levers placed on snow will have the animation like the broken lever: Media:Brokenlever.png The broken lever will point west.
Sometimes when reeling in a fish, the fish will not be collected and will fly over the top of you.
Saplings will refuse to grow into trees if any part of the tree's leaves would be in a block that is already occupied with anything except leaves. This results in places where planted saplings will never grow, when they used to be able to.
Aggressive mobs are unable to jump over blocks when in pursuit of the player [21]
Thunder can be heard at the bottom of the world, when deep within a cave. (Is this a bug?)
Sometimes while shift-clicking objects into chests, the shift button always acts held down. In this case, you are not allowed to pick up any items in your inventory. Once you're in a chest, clicking an item in your inventory will quick-drag the item into the chest, even if your shift key is not held down. Restarting Minecraft will fix this problem.
Torches are lost when attempting to place them in water. Torches simply washed away can still be collected.
Looking backwards whilst traveling in a minecart causes it to flash rapidly.

[razvy2011]

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