The update brings a host of tweaks and changes, including the ability to respec characters and improved support for windowed mode, complete with blit scaling.

Both versions of the patch--a 9.31MB one for those with plain old Diablo 2, a 5.18MB other for those with the Lord of Destruction expansion--can be found over on FileShack or acquired by connecting to Battle.net in-game, with the notes below:

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- Patch 1.13c
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A new Mystery has been revealed!

• Adventurers of Sanctuary are hereby warned once again, that a new challenge awaits you. Within Diablo's Bosses, spanning across the world from the ancient Monastery Catacombs to the Throne of Destruction, is where you'll find what you seek...

Major Bugs

• Fixed an item dupe bug.
• Video improvements for Intel Mac machines with OS 10.5 or greater.
• Fixed an issue where some players could kill other players while in town ("TPPK").
• Fixed an issue where some players could disconnect other players when they had too many active states.
• Fixed two issues where players could stack auras in an unintended way.

Minor Bugs

• Uber Mephisto now checks for both Uber Baal and Uber Diablo to be killed before spawning summoned minions (Before he would only check for Uber Baal).
• The game will no longer stop and then restart the game music after the window loses and then regains focus.
• Fixed an issue where the game window would minimize when running in windowed mode when it lost focus.
• Fixed an issue where the game window wouldn't center properly when it was created.
• Fangskin should now properly drop loot in Hell difficulty.
• Fixed an issue where auras were not re-applied to your mercenary after it was resurrected.
• Fixed an issue where if you had two items which provided auras to a mercenary and you unequipped one, the aura from the remaining item never became active.
• Fixed an issue where the Paladin class runeword 'Principle' wasn't having all of its stats applied properly.
• Fixed an issue where the Paladin's Charge ability would become locked out if Holy Shield faded while charging.
• Fixed an issue where the Barbarian's Leap ability could become locked out if they were hit when they started to leap.

Specific changes/improvements

• Respecialization is now possible! Completing the 'Den of Evil' quest will now additionally reward 1 free respec which can be saved. Players who have already completed this quest should receive 1 free respec in Hell difficulty.
• Increased the drop rate of high runes.
• Support for blit scaling in windowed mode. The game can now be maximized to the largest 4:3 resolution supported (hooray widescreen users).
• Some rare drop items now have an orange color. i.e. Runes and items required for Uber Tristam.
• Modified the gold bank limit to be a flat cap not bound by level.
• Removed the requirements to create a hardcore character.
• Greatly reduced the explosion damage dealt by Fire Enchanted monsters.
• Uber Mephisto and Uber Baal's summoned minions no longer give experience.
• Removed Oblivion Knight's Iron Maiden curse.
• Hellfire Torch Firestorm proc rate has been reduced to 5%.
• Users can now toggle the display of text over the Health and Mana globes by clicking on the bottom area of each orb.
• When creating a single player game, each difficulty button is now bound to a unique key: Normal 'R', Nightmare 'N', and Hell 'H'.
• The 'Enter Chat' Button in the battle.net waiting room is now bound to the 'Enter' key.
• Added the windows system buttons to the game window (MIN, MAX, CLOSE).
• Added new command line parameter '-nofixaspect' which allows users to not fix the aspect ratio to 4:3 when maximizing in windowed mode. This lets the game 'stretch' to fill your monitor.
• Added support for '-sndbkg' command line switch. This enables sound in background.
• Added the following aliases for pre-existing command line options, '-nosound', '-window', and '-windowed'.

Revised Skill balance for Player Character classes

Amazon
• Immolation Arrow - Increased radius of Explosion effect by 33% and Immolation effect by 50%.
• Immolation Arrow - Explosion effect damage increased by 20%.
• Immolation Arrow - Increased base duration by 33%.
Assassin
• Drgon Claw - Synergy receives 4% additional damage per point of Claw Mastery.
• Dragon Talon - The bonus to Attack Rating per point has been increased to 35.
• Shadow Master - Increased resistance range per point from 5-80 to 5-90.
• Combo points awarded by combo moves now last 15 seconds, up from 9.
Barbarian
• Whirlwind - Reduced initial mana cost by 50%.
• Masteries - Changed critical strike chance from 0-25 to 0-35.
Paladin
• Blessed Hammer - No longer ignores resistances of undead and demons.
Druid
• Werebear - Damage bonus increased by 15% across all ranks.
• Werebear - Increased health by 25% and armor by 1% per point.
• Shockwave - Synergy from Maul adds 5% damage per point.
Necromancer
• Blood Golem - Removed negative shared life effect (player no longer loses life when the golem takes damage).
• Corpse Explosion - Increased base damage dealt from 60% - 100% to 70% - 120% of corpses health.
• Poison Nova - Increased base damage by 15%.
Sorceress
• Firewall - Synergy receives 1% damage per point of Inferno and 4% per point of Warmth.
• Blaze - Synergy receives 1% damage per point of Firewall and 4% per point of Warmth.
• Hydra - Increased base damage by 15% per rank.
• Hydra - Increased base speed of Hydra projectile.
• Hydra - Reduced cooldown by 25%.