Which update to Team Fortress 2 added cosmetics and the inventory?

Around 2008, Team Fortress 2 had the addition of cosmetic items, and an inventory. Previously, you unlocked weapons via completing milestones.
What was the last game version before this major update?
Best Answer
Team Fortress 2 still allows you to unlock weapons via milestones; the only thing that really changed was the introduction of the item drop system that brought in other weapons.
As read here from the TF2 Wiki:
Each class can earn three Milestone achievements. Milestone achievements are awarded for earning 5, 11, and 17 achievements in a class; or 10, 16, and 22 achievements in a class; depending on the class. Each Milestone achievement counts towards future Milestone achievements.
The following classes earn Milestone achievements at 5, 11, and 17 class achievements:
- Soldier
- Demoman
- Engineer
- Sniper
- Spy
The following classes earn Milestone achievements at 10, 16, and 22 class achievements:
- Scout
- Pyro
- Heavy
- Medic
The rest of the link shows the "milestone weapons" rewarded at each tier.
Pictures about "Which update to Team Fortress 2 added cosmetics and the inventory?"



What did the new TF2 update add?
The major changes include: Fixed particle effects regression when players are killed. Updated/Added some tournament medals. Updated the localization files.What is the rarest cosmetic in TF2?
Here is a list of top TF2 items, which are unique and expensive:- Unusual Burning Team Captain \u2013 $6,695.
- Collector's Dead of Night \u2013 $2,450.
- Strange Golden Frying Pan \u2013 $2,200.
- Collector's Killer Exclusive \u2013 $1800.
- Strange Australium Medi Gun \u2013 $65-$103.
- Non-Craftable Earbuds \u2013 $686.
- Normal Black Rose \u2013 $1,465.
Can you get cosmetics for free in TF2?
There are two ways of getting hats/cosmetics in TF2 for free. If you're looking for a hat through non-grindy means (waiting to get stuff from the drop system), you can try earning the Spiral Sallet, by earning Mission Accomplished achievement from Spiral Knights, for example is still an on-going "promotion".How do you get cosmetic items in TF2?
The ways to obtain various cosmetics are:what changed? tf2's recent updates broken down | June 21 - July 7, 2022 updates
Sources: Stack Exchange - This article follows the attribution requirements of Stack Exchange and is licensed under CC BY-SA 3.0.
Images: MART PRODUCTION, Cedric Fauntleroy, Cedric Fauntleroy, Cedric Fauntleroy