WoW Files Build notes
Stable branch 5 patches Build target 2.4.3

The Burning Crusade patch history

2.0.1 — 2.4.3

Five patches, six raid tiers, and the arrival of arenas — the system that forced emulators to think about matchmaking and rating for the first time.

Patches tracked
5
Major releases
3
First
2.0.1
Last
2.4.0
Build target
2.4.3

Patch timeline

First to last · summarized for operators
  1. 2.0.1
    5 Dec 2006

    Before the Storm

    Major release
    • Pre-expansion patch: new talent trees, honor system rewrite, and the arena framework.
    • Old-world honor grind replaced with a points system that pays out weekly.
    • The Dark Portal opens for the expansion launch on 16 January 2007.
    What this means for a buildA protocol break, not a content patch. Everything on the wire changes here.
  2. 2.1.0
    22 May 2007

    The Black Temple

    Fan favorite
    • Black Temple and Mount Hyjal open as the second raid tier, both behind long attunement chains.
    • Adds the Illidan encounter, a multi-phase fight that set the template for later raid scripting.
    • Introduces guild banks and a round of heroic dungeon tuning.
    What this means for a buildAttunement chains mean cross-instance prerequisite state. The Illidan script remains a benchmark for TBC cores.
  3. 2.2.0
    25 Sep 2007

    Voice Chat

    • Adds in-game voice chat for parties, raids, and guilds.
    • Mostly a client-side release with minor world content.
    What this means for a buildLittle server-side work. Most cores skip voice entirely and nothing breaks.
  4. 2.3.0
    13 Nov 2007

    The Gods of Zul'Aman

    • Zul'Aman opens as a ten-player raid with a timed bear-mount run.
    • Levelling from 20 to 60 is sped up substantially, and dungeon quests are rebalanced.
    What this means for a buildThe timed run is an instance-scoped timer with loot consequences — a common source of bugs in ports.
  5. 2.4.0
    25 Mar 2008

    Fury of the Sunwell

    Build targetMajor release
    • Sunwell Plateau opens as the final tier, alongside the phased Isle of Quel'Danas.
    • The isle advances through realm-wide progress stages that unlock daily quests and vendors.
    • 2.4.3 in July 2008 is the last build of the expansion.
    What this means for a buildRealm-wide phasing on the isle is the hardest part of this branch. 2.4.3 is the standard build target.

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