★ NEW: Season 10 Guide | Season 10 Release Date
┗ Seasonal Content: Chaos Rifts | New Uniques
┗ Seasonal Mechanic: List of Chaos Perks & Chaos Armor
★ Season 10 Best Builds & Best Chaos Perks
★ Check out our Vessel of Hatred expansion guide

This is a full guide of all the itemization changes coming to Diablo 4 (D4) Season 4. Check out all the itemization changes and learn how the loot system is reworked!
List of Contents

Tempering allows players to add affixes to their gear that lean towards their desired build. To use tempering, players must find Tempering Manuals as regular drops and go to the blacksmith to begin Tempering.

The Affixes from Tempering Manual corresponds to six categories: Weapons, Offensive, Defensive, Mobility, Utility, and Resource.
Here are the key points to tempering items:

Masterworking is an end-game crafting system in the Blacksmith, using materials earned from The Pit of Artificers to upgrade your gear. It improves the overall strength of all affixes on your weapon, and at every 4th tier, it massively upgrades one of your equipped affixes.
Texts of affixes that receive the bonus will have their colors changed based on the number of bonuses they recieve. You can reset the Masterwork of a weapon if you do not like its results.
| Blue | 1 Masterwork Bonus |
|---|---|
| Yellow | 2 Masterwork Bonuses |
| Orange | 3 Masterwork Bonuses |

Season 4 will introduce Greater Affixes to items. These affixes have their values raised by 1.5 and will only appear for Ancestral Legendary and Unique items.
Items with Greater Affixes will drop with a unique audio cue and will have a unique icon in your inventory and the overworld. Greater Affixes cannot be obtained from Enchanting items and can only be obtained from drops.
Item Affixes are now reduced, with only 2 for Rare items and 3 for Legendary items. These affixes are now more effective and no longer have conditional requirements.
Here's a list of more key item changes coming to Season 4:
With these changes, items are now easier to manage, which ones to keep and which ones to salvage and sell.
Gems now have raised effectiveness, and their crafting levels changed. Normal Gems are available at level 51, Flawless Gems at level 71, and Royal Gems at level 91.
Below is a list of the bonus effects of each Gem type:
Salvaging Legendary items will now store their Aspects in your Codex of Power, which can be reused indefinitely. Aside from efficiency, this change also addresses the issue of hoarding legendary items in player stashes.

| All News Categories | ||
|---|---|---|
| Patch Notes and Updates | Livestreams and Dev Blogs | List of Events |
Starcraft Collaboration
Updated 9/26/2025
New Starcraft-themed cosmetics is available in the in-game shop and through a Twitch Drop Campaign starting on September 26!
Season 9 Twitch Drops
Updated 6/30/2025
Watch eligible Twitch streams from July 1 to July 19 to earn a crossbow cosmetic for the rogue!
Patch 2.2.1 Update - May 14
Updated 5/13/2025
See all the class buffs and game updates done with Patch 2.2.1.
Berserk Twitch Drops
Updated 5/7/2025
Claimed free cosmetics exclusive to the Berserk collaboration!
Berserk Collaboration
Updated 5/7/2025
Check out the all-new cosmetic items created in collaboration with the Berserk anime!
2025 Roadmap and Schedule
Updated 9/23/2025
Check out all the upcoming content for the year 2025!
Lunar Awakening 2025 Event Details
Updated 2/5/2025
Learn all Lunar Awakening Event mechanics, bonuses, and rewards!
All Season 4 Itemization Changes



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