Recently, Valve announced a small update, which not only brought back the defense mode, added multiple maps and balance adjustments to the "Purgatory Town" map, but also brought a disruptive feature of the "replacement system" of the jewelry skin alchemy system.

This replacement system expands the "upgrade and replacement" function, which will allow players to use 5 pieces of secret quality skins (red) to replace 1 knife or glove, while the dark gold skin can replace 1 dark gold knife.
Here are the full update notes:
game
A new "Return to Defense" mode has been added to the official matching server, supporting "Bomb Disposal Map Set No. 1" and "Bomb Disposal Map Set No. 2".
Fixed the interaction logic between Molotov cocktails and smoke bombs when there are multiple smoke bombs in the map.
map
Updated the Golden Island map to the latest version from the Steam Community Workshop.
Updated the Pena Palace map to the latest version from the Steam Community Workshop.
Updated the Peak Showdown map to the latest version from the Steam Community Workshop.
Purgatory Town
Adjust the view range from the top of the stable to the bottom of the balcony.
Field of view.
Replacement system
The "Upgrade Replacement" function has been expanded to support the replacement of the following secret quality items:
5 StatTrak™ Stealth Quality Skins (Red) replace 1 StatTrak™ Knife (from one of the offered series)
5 normal stealth quality skins (red) can replace 1 normal knife or 1 pair of normal gloves (from one of the provided sets)
Miscellaneous
Optimized the performance of the game's main menu and item inspection interface
Fixed an issue where inventory item icons occasionally appeared blurry or failed to display properly.
Fixed the issue where multiple server-side sound effects events would be triggered repeatedly
stability improvements
This time, the update directly disrupted the long-term market trading environment of CS2. All knife and glove skins have been significantly reduced in price. Some foreign analysts said that this update will cause the prices of knives and gloves to drop rapidly (40-50%), while stealth-level skins will see a short-term surge due to players rushing to buy synthetic materials.However, he also said that over time, these fluctuations will gradually calm down, and the overall market price will eventually fall back by 5-10% - this is not a crash, but a normal market adjustment.CS2’s jewelry economic system is still healthy.And a price prediction chart is given, showing the process of the market re-finding balance.

