In Mojang’s last update, the bug fixes have been listed (and there are many). They include…

“Many bugs fixed, including:

• [MC-291] – Screenshots are treated as links in the console.
• [MC-673] – Sky/lighting doesn’t get darker during a thunderstorm
• [MC-715] – V-Sync in Window mode, settings not activated between sessions.
• [MC-784] – Letters in Arabic Language not connected
• [MC-881] – Boat inflicts fall damage if it runs aground in some fashion (Slabs, Mobs, Soul Sand)
• [MC-944] – Armour with Protection on it seems to reduce against hunger damage
• [MC-1018] – Black Lighting under overhangs
• [MC-1105] – Villagers act like it is Raining when they are in the Desert, and it Rains elsewhere.
• [MC-1379] – Transparent texture makes transparent texture behind invisible
• [MC-2638] – Old AI mobs and Wolves don’t turn back to passive in Creative
• [MC-2915] – Attempting to tp to an invalid coordinate returns “commands.generic.double.invalid”
• [MC-3305] – Cyrillic font not displaying on signs and in chat (Russian language)
• [MC-3871] – Cauldron water does not put out fire / damage blaze
• [MC-3973] – Silk Touch, pre-lit Redstone Lamps
• [MC-4150] – Baby Zombies do not drop any loot / xp
• [MC-4482] – Saplings placed on Farmland are not affected by Bonemeal
• [MC-4732] – Tools and weapons lose durability without doing damage
• [MC-4921] – Sounds (eg. Mobs / Portals / Water) Don’t Immediately Fade
• [MC-4973] – Zombie Pigman from Nether Portal still spawns even if doMobSpawning is false
• [MC-5238] – 10 MB server texture pack limit too small
• [MC-5305] – Arrows from a flame bow aren’t extinguished from rain
• [MC-5550] – Night Time Doesn’t Immediately Allow Sleep
• [MC-6820] – The generation of terrain surface layer produces local straight glitches (fix included)
• [MC-7449] – Silverfish infected Stone Brick varients appears as normal stone brick.
• [MC-8331] – Command block text disappears if too long
• [MC-9271] – Opening a singleplayer world is counted as a multiplayer join in the statistics
• [MC-9547] – Incorrect usage string for `/scoreboard teams empty`
• [MC-9779] – Old versions of output-server.log and lock files remain on harddisk
• [MC-10077] – Ajasent Obsidian Blocks prevent Nether portal appearing
• [MC-10257] – when a pig gets struck by lightning it spawns without a sword
• [MC-10984] – GS4 query listener fails to send player list when len(players) > 127
• [MC-11027] – Axes accelarate the speed at which Slabs are broken
• [MC-11280] – Sometimes Water flows out of newly generated Village Farms
• [MC-11518] – RCON and Scoreboard Command Output Formatting
• [MC-12450] – Missing usage string commands.scoreboard.players.list.usage
• [MC-12452] – Scoreboard team join command fails on invalid team name
• [MC-12454] – Scoreboard option seeFriendlyInvisibles not listed in usage
• [MC-12541] – the letters for the ‘off’ setting on smooth lighting aren’t capitalised
• [MC-12731] – Minecraft crashes if you click edit or delete on a LAN game
• [MC-12769] – when typing /help with a number higher than 4, it produces the wrong message
• [MC-12984] – getting a locked chest pushed into your head crashes the game
• [MC-13565] – Fireworks sometimes don’t stack when they should
• [MC-13661] – When re-sizing window before game loads internal view doesn’t resize
• [MC-14521] – Boats cannot be steered by using the “left” and “right” keys
• [MC-14865] – Carpets Are Not Flammable
• [MC-15547] – Structures (witch huts, nether fortresses etc.) don’t get saved with the world file
• [MC-15564] – Start up failure: “Cannot determine close requested state of uncreated window”
• [MC-15688] – Axe breaks all slabs in adventure mode. No drops for stone.
• [MC-16324] – Massive Amount of “[SEVERE] Reached end of stream” messages
• [MC-16435] – Boats Still Break on Lily’s
• [MC-16849] – Crash near pyramid
• [MC-16910] – Packet250CustomPayload(dk)
• [MC-17090] – Invalid teamcolors throw an NPE in the console
• [MC-17831] – Crash selecting resource pack [13w24b]
• [MC-18569] – Server resourcepacks not implemented yet
• [MC-18672] – Textures disappearing after setting player walkSpeed to 0
• [MC-19483] – sounds playing after leaving world
• [MC-19604] – Cannot /playsound records
• [MC-21870] – Screen goes blank when modifying walk speed
• [MC-22927] – Animals running forever after being hit
• [MC-26151] – Minecraft has advice on an error report that should be deleted.
• [MC-26608] – /spreadplayers confirmation text is wrong
• [MC-26660] – Constant minecart sound
• [MC-27284] – /scoreboard teams option color: Tab doesnt list all options.
• [MC-27904] – The Hindi, Malay and Norsk (Bokmål) language appear 2 times
• [MC-28400] – Breeding animals gives xp even if doMobLoot gamerule is false
• [MC-28405] – The saddle equip sound effect does not play when equipping a pig with a saddle.
• [MC-28478] – Successful hit sound effect does not match the sound in the assets sound folder
• [MC-28625] – The horse armor equip sound does not play when replacing others
• [MC-28768] – Horse Breeding Doesn’t Produce Markings Correctly on Foal
• [MC-29088] – Shearing sound does not play when shearing a mooshroom
• [MC-29279] – Bug: the command block can be damaged by the explosion of Blue Wither Skulls
• [MC-29321] – Jukeboxes play at the sound volume for effects until you change the music volume
• [MC-29361] – Oceans are too big
• [MC-29424] – Players appear offset for other clients after going through nether portals
• [MC-31031] – Spawn eggs can be used on top of water, but not lava
• [MC-31065] – Villages not generating? (snapshot 13w37b)
• [MC-32250] – Typo on “Unable to Load Worlds” screen
• [MC-32534] – piston extention givies tile.nill.name
• [MC-32679] – Spawned in enderportals are not nameable

Source: Minecraft 1.7