Need to build up on funds for faster and better server :)

Current changes/bugs/fixes:

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)
Lighting on steps are broken. Steps turn black (on newly placed steps).
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 attempted again it will work.
Putting a smelted item (glass, stone etc.) back in the furnace doesn't 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 rarely will 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. Most likely related to the fix, "Rain no longer goes through translucent blocks."
Human mobs rarely spawn and disappear right after on peacefull

1.5 April 19, 2011 Added Weather.
Added Statistics and Achievements.
New Items (Detector rail, Powered Rail, Birch and Pine/Spruce Saplings).
New Item Web. Cannot be found naturally.
SHIFT-clicking on something in a chest will immediately move the selected item(s) into your inventory and vice-versa.
Birch and Pine/Spruce trees now drop Birch and Pine/Spruce saplings, respectively.
Huge performance improvements for old and slow computers.
Crafting a ladder now produces 2 ladders.
If lightning strikes a pig, it becomes a Zombie Pigman.
If lightning strikes a Creeper, it becomes electrified and will have a much more powerful explosion.
New settings in options:
Ability to change GUI size (Small, Normal, Large, Auto).
Advanced OpenGL (Occlusion Culling: doesn't render blocks that the player can't "see", helps performance in cards that support it).
Items can now be smelted with Saplings with the same smelting power as Sticks.
Dropped items in flowing water move faster than before.
Pigs that die by burning now drop cooked porkchops upon death.
Redstone dust can be placed on snow.
Wolves are more common, even in non-taiga/forest biomes.
Unarmed damage was increased from to .
You can now see names over the small spinning mobs inside the mob spawners by pressing F3. You have to be further than 5 blocks away from the spawner to see it.
Bug Fixes:

You are only 'on' a ladder (can climb it/fall slowly) if your lower half is in the ladder block, rather than any part of you. It is no longer possible to climb a one-block gap in a ladder, or a ladder that starts at eye level.
On fancy graphics, the sides of grass blocks are now biome-specific and match the shade on the top.
You can now move through flowing water at previous speed.
Wolves have a better understanding of doors. They will go through doors most of the time, but will sometimes get stuck on the 3 pixel thickness of the door. They will eventually back up for another go at the opened door.
The lighting on portals and ice has been fixed (previously had triangles on the blocks) when using Smooth Lighting.
Stairs are no longer transparent.
On SMP, the health of wolves are now synchronized between server and client, causing wolves to only whimper when low on health, opposed to all of the time.
Redstone in off state is red again.
Crops hit with water now drop seeds and wheat, as opposed to just wheat.
Moving minecarts will continue to move if the world is closed.
The Mojang logo is the correct size when Minecraft is maximized.
The exploit to make chests three or more side by side by placing a water source and placing a chest in that source has been fixed.