The last release had a few rather serious issues which should be fixed by this one.

BuildCraft 3.5.3 (Universal Binary)
Mirror #1
Requires latest Forge (7.8.0.684+)

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#3.5.3

- Bugfix: Several fixes to behaviour of pipes. Fixed a crashbug. (CovertJaguar, Player)

Resolves some issues and introduces the new pipe plugs by Krapht.

BuildCraft 3.5.2 (Universal Binary) - Requires latest Forge (7.8.0.684+)

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#3.5.2

- Added: Pipe plugs. (Krapht)
- Added: Config option to disable oil springs. (CovertJaguar)
- Changed: Some more tweaks to oil spawn. Oil lakes now also spawn in taiga biomes. (CovertJaguar)
- Changed: Fire is now considered a soft block. (CovertJaguar)
- Changed: Pipes with missing info are now deleted. (CovertJaguar)
- Changed: Vanilla ISided support for extraction pipes. (h/t immibis)
- Bugfix: Filler flatten pattern no longer stopped by flowers. (CovertJaguar)
- Bugfix: Possibly fixed power pipe load issues. (CovertJaguar)

Bugfixes, bugfixes, bugfixes. Well, and oil springs! Download below.

BuildCraft 3.5.1 (Universal Binary) - Requires latest Forge (7.8.0.684+)

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# 3.5.1

- API: IMC calls to ban oil from certain biomes or allow oil lakes in them. (CovertJaguar, h/t Aroma1997)

Straight port to Minecraft 1.5.1 by Krapht, cpw, CovertJaguar, Player and Flow86. Also contains several smaller bugfixes and tweaks. Enjoy!

BuildCraft 3.5.0 (Universal Binary) - Requires latest Forge (7.7.1.650+)

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Some more bugfixes, a buff to the autarchic gates and glass facades.

BuildCraft 3.4.3 (Universal Binary)

Requires Forge .507+. Do not install ModLoader. Install only Forge.

- Added: Glass facades. (Krapht)
- Changed: Autarchic gates now always pulse at a single, fast rate. (cpw)
- Bugfix: Vines now marked as soft blocks. (CovertJaguar)
- Bugfix: Prevented crash if world gen is disabled. (CovertJaguar)
- Bugfix: Fixed NPE when liquid in tank has ceased to exist. (Krapht)
- Bugfix: Fixed /buildcraft not working in SSP. (viper283)
- Bugfix: Fixed tank filling. (CovertJaguar)
- Bugfix: Pipe items now registered with FML. (CovertJaguar)
- Bugfix: Version check now threaded. (Pahimar)
- Localization: Several updates to locations. (Contributors)

Forgot to post 3.4.1 on this website, so I am adding both changelogs at the end of this post. New pipe!

BuildCraft 3.4.2 for Minecraft 1.4.7 (Universal Binary)

Requires Forge .507+. Do not install ModLoader. Install only Forge.


# 3.4.2

- Added: Emerald transport and liquid pipes. (CovertJaguar)
- Added: Spring water source blocks at bedrock level.
- Changed: Wood pipe and redstone engine recipes now use wood from the ore dictionary.
- Changed: Coordinates of invalid pipes are now logged. (agaricusb)
- Bugfix: Fixed item drops on world load. (davboecki)
- Bugfix: Proper side checking for liquid pipe connections. (King_Lemming)


Updated to MC 1.4.7 coupled with bugfixes and a change to filler behaviour.

BuildCraft 3.4.0 for Minecraft 1.4.7

Requires Forge .491+. Do not install ModLoader oder ModLoaderMP. Install only Forge.

3.4.0:

- Upgraded: MC 1.4.7
- Changed: Filler function to stop its use asa mining tool. Empties from the top down, items dropped from it only last a second. (cpw)
- Changed: Gates and pipe wires now available earlier for other mods. (Flow86)
- Changed: Pipes now replace grass, vines, etc. when placed. (tcooc)
- Changed: onInventoryChanged() now called when adding to an IInventory. (MrTJP)
- Bugfix: Fixed issues with the hopper and NBT data. (CovertJaguar)
- Bugfix: Fixed NBT data not synching in diamond pipe gui.
- Bugfix: Pipe items should now display smoother. (aznhe21)
- Bugfix: Filler flatten now works above 128 height. (DeliciousJaffa)
- Bugfix: Stacked tanks will not store different liquids anymore. (kemurphy)

Updated again to 1.4.6 coupled with several bugfixes and – thanks to CovertJaguar – tremendous improvements to cpu and bandwith use.

BuildCraft 3.3.0 for MineCraft 1.4.6

CHANGELOG

3.3.0:
- Updated: Minecraft 1.4.6.
- Added: Oil and fuel to liquid dictionary. (CovertJaguar)
- Added: Update version check. (SirSengir)
- Changed: Improved performance of conductive pipes. (CovertJaguar)
- Changed: Moved default block ids for oil to 1520 and 1521. (narc0tiq)
- Changed: ACT now plays item breaking sound when a tool breaks. (pahimar)
- Changed: Improved performance of all pipes in cpu and network bandwith usage. (CovertJaguar)
- Bugfix: Updated ACT to correctly handle container items. (pahimar)
- Bugfix: Partially fixed incorrect bee rendering in pipes. (SirSengir)
- Bugfix: Fixed decrStackSize bug on the ACT. (CovertJaguar)
- Bugfix: Fixed an issue that caused some combustion engines to refuse new fuel. (gishicrafter)
- Bugfix: Fixed potential NPEs on engine. (Nevercast)
- Bugfix: Fixed liquid pipes getting stuck client side. (Nevercast)
- API: Refinery recipe list can now be queried. (narc0tiq)

And yet another maintenance update:

BuildCraft 3.2.2 (Client & Server)

Requires Forge .408+. Do NOT install ModLoader oder ModLoaderMP.

CHANGELOG

3.2.2:
- Changed: Refactored quarry algorithm for efficiency to reduce CPU usage. (cpw)
- Changed: Several improvements to the bandwith usage especially on liquid pipes. (CovertJaguar)
- Changed: Pipes are slightly harder to break. Not quite as hard as in the 1.8.1 version though. (Nevercast)
- Changed: Moved default item ids out of <4k range. Make sure to keep your configs for old saves! (CovertJaguar)
- Bugfix: Fixed an issue that could cause negative stacksizes in engine inventories. (CovertJaguar)
- Bugfix: Fixed an exploit which caused autarchic gates to be able to power wooden conductive pipes. (CovertJaguar)
- Bugfix: Fixed minor lighting issue in some guis. (tcooc)
- Bugfix: Several minor issues related to liquids with metadata. (Nevercast, gishicrafter)
- Bugfix: Fixed a potential NPE when a mod liquid was removed but some of it still remained in pipes. (CovertJaguar)
- Bugfix: Action state should be displayed correctly in gate gui. (Nevercast)
- Bugfix: Fixed potential crash when addon liquid pipes do not conform to volume limits of BC pipes. (denoflions)
- Bugfix: Resolved an issue with facade IMCs. (CovertJaguar)


Small update to fix a few issues that have cropped up:

BuildCraft 3.2.1 (Client & Server)

Requires Forge .408+.

CHANGELOG

3.2.1
- API: Inventory triggers can now be ISided.
- Changed: Improvements to reduce bandwith used for pipe updates and size of liquid pipe updates.
- Changed: Localization definitions can now inherit from other definition files. (psxlover's PR.)
- Bugfix: Fixed tooltips updating only on click in gate interface.
- Bugfix: Fixed laser placement. (psxlover's PR.)
- Bugfix: Combustion engine, refinery and pump should be able to handle metadata based liquids now. (gishicrafter's PR.)
- Bugfix: Fixed incorrect handling of power providers on quarries. (tcooc's PR.)
- Bugfix: Trees growing should not destroy pipes anymore. (tcooc's PR.)
- Bugfix: Now using Forge autoassign for block and item ids. (AtomicStryker's PR.)
- Bugfix: Fixed issue causing a crash on the refinery gui.