Season 15 starts in September in Diablo 4 and brings fresh content as well as some changes to the ARPG. What new features await you can be found here on MeinMMO.
In a recent blog post, the developers revealed first details about the contents of the new season. The planned innovations can soon be tested on the PTR. At the BlizzCon 2026, Blizzard will share more details about new content in Diablo 4.
We summarize all important information for you and regularly update the article as new developments arise.
With our directory, you can quickly jump to the individual points:
Season 15: Start, PTR and Patch Notes
When does Season 15 start? Season 15 is expected to start on September 15, 2026, based on the remaining days in the Reliquary of Season 14. We expect it to start around 7:00 PM German time. Whether there will be a preload is still unclear.
When does Season 15 end? Normal-sized seasons go through a 90-day cycle. Although there is no specific end date yet, Season 15 is likely to run until mid-December.
Is there a PTR for Season 15? Yes, the PTR (test server) starts on August 4 at 7:00 PM CEST and runs until August 11 at 7:00 PM CEST. There, you can try out seasonal features, items, and mechanics via Battle.net in advance.
Are there patch notes for Season 15? You can find the detailed patch notes for the PTR of Season 15 on the Blizzard website.
Currently, we are still in Season 14 of Diablo 4:
Season 15: Theme and New Features
What is the theme of Season 15? The theme of Season 15 is not officially known yet. However, in the blog post, Blizzard offers an insight into the seasonal content and changes to the base game.
This is included in Season 15:
- Seasonal Items: New, socketable items come into play with the Soul Shards. They are available in all rarity levels (common to unique) and provide various strong bonuses.
- New, familiar uniques: A total of 9 uniques from Diablo 1 to 3 are returning – including Leoric’s Crown and the Stone of Jordan. The stats are adjusted to Diablo 4 and thus are not identical to previous versions. About half of them can be used by all classes.
- Adjustment of Mythics: After criticism, Blizzard continues to work on the Mythics. The system is supposed to be simpler in Season 15, offer more crafting options, and give you more targeted control over the key items for your builds.
- Reincarnation: Characters from the eternal realm can now be directly transformed into seasonal characters. This saves you from having to completely recreate your favorite heroes. How the reincarnation system works in Diablo 4 can be found here.
- Challenge Dungeons: Through portals in the overworld, you reach new dungeons where you fight against dangerous bosses. At torment levels, you can increase the difficulty for better loot up to three levels above your current level.
- New Talisman Spells: The talisman system receives new unique and mythic spells. Each unique spell also has a small chance to drop as a mythical variant.
- Horadric Mail: A new in-game system through which Blizzard sends you rewards and supplies. On the PTR, you will already receive a first commemorative item.
A complete list of all items and details can be found at news.blizzard.com.
Season 15: Best Classes and Builds
Which class is the best class in Season 15? Which classes and builds will dominate the tier lists in Season 15 is not yet determined. The PTR will show initial developments. In Season 14, especially the Barbarian led the S-tier with several builds. How strong the new Soul Shards, spells, and uniques will influence the meta will only be revealed after the tests. And how classes currently perform in endgame can be seen in our tier list for Season 14 in Diablo 4.
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