From WoW: IncGamers World of Warcraft Wiki

Patch 1.8.0 (11 October 2005)

• The minimum level for the Artisan First Aid quest line has been lowered to 35.

Patch 1.6.0 - 12 July 2005

• Also new First Aid recipe added to Argent Dawn at Honored.

Patch 1.2.0 - 21 December 2004

• A bug with bandages has been fixed. Previously, only the lowest rank bandage (Linen Bandage) was working correctly in that it brought up a channeling bar and required you to remain still while bandaging. All of the other bandage types (Heavy Linen through Heavy Runecloth) were working incorrectly, but have been fixed to operate the same way that Linen Bandages do.

Beta Patch 0.10.0 - 19 September 2004

• Several old trade skills are being turned into secondary skills. These do not count toward your two-profession limit, so players can learn all three secondary skills, in addition to their two professions, without restriction. The survival skill is being removed and campfires have been folded into the cooking profession.
• The secondary skills are: cooking, fishing, and first aid.
• Bandaging operates differently than it used to. Bandages now are channel cast and heal over time. If the player bandaging or the player being bandaged is struck in combat, the bandaging effect ends. Either way the target still gets the "recently bandaged" debuff.

Beta Patch 0.9.0 - 15 August 2004

• First Aid Skill increase rate has been slowed down.
• Anti-Venom made by physicians no longer requires first aid to apply.