Here’s a comprehensive look at what’s confirmed and rumored for Honkai: Star Rail Version 3.6, including new characters, the highly anticipated collaboration, and its expected release window.

Honkai: Star Rail Version 3.6 Release Date

While official announcements from HoYoverse are the final word, Honkai: Star Rail typically follows a **consistent six-week update cycle**. Based on this pattern, **Version 3.6 is tentatively expected to launch around September 26, 2025, and run until approximately November 6, 2025.**

It’s crucial to note that while the Version 3.6 update itself is slated for late September, the major collaboration event associated with it actually began earlier, in **Version 3.4 (around July 11, 2025)**, and is confirmed to extend through Version 3.6. Players should actively monitor official Honkai: Star Rail social media channels and news feeds for precise confirmation and patch notes as these dates draw closer.

Major Collaboration: Fate/stay night [Unlimited Blade Works]

One of the most thrilling aspects of the recent news is the **confirmed major crossover event with the globally renowned anime and visual novel series, *Fate/stay night [Unlimited Blade Works]***. This collaboration, titled **”Sweet Dreams and the Holy Grail,”** marks a significant moment for Honkai: Star Rail, as it brings beloved characters from outside the HoYoverse into the Astral Express’s universe. This crossover officially commenced on **July 11, 2025, with Version 3.4**, and its duration is confirmed to extend through Version 3.6.

Collaboration Characters: Who’s Joining the Astral Express?

The *Fate/stay night [Unlimited Blade Works]* collaboration introduces iconic characters into Honkai: Star Rail as playable units:

• Archer (Emiya): Confirmed as a **free 5-star collaboration character** obtainable simply by logging into the game during the event, which started on July 11, 2025, and runs until the end of Version 3.6. He follows the **Hunt Path** and wields the **Quantum** element. Players will also receive materials to build him to Lv. 60.
• Saber (Artoria Pendragon): An iconic figure known for her powerful sword skills, Saber joins as a **5-star unit**. She follows the **Destruction Path** and wields the **Wind** element. Unlike Archer, players will need to pull for Saber on her dedicated warp banner.
• Rin Tohsaka: While not explicitly confirmed as a playable character for Version 3.6, the nature of collaborations often includes key supporting characters. Her abilities as a master mage could potentially translate into a powerful Nihility or Harmony character, specializing in debuffs or buffs if she were to become playable.
• Shirou Emiya: As the protagonist of *Unlimited Blade Works*, his presence is central to the collaboration’s narrative. While not confirmed as playable, his unique abilities could potentially translate into a future adaptive path or unique support capabilities if he were to become a unit.

These characters not only introduce new combat mechanics but also fresh narratives and interactions to the Honkai: Star Rail universe.

HSR 3.6 New Characters (Beyond the Collaboration)

Beyond the exciting collaboration, Version 3.6 is heavily rumored to introduce **new, evolved forms of existing beloved characters**, often referred to as “Special Version” (SP) characters. This practice has been seen with Dan Heng • Imbibitor Lunae and continues to bring fresh dynamics to familiar faces.

• March 7th SP (Month of Evernight): Rumors suggest a new, more powerful 5-star iteration of March 7th, potentially changing her Path and Element. She is expected to follow the **Path of Remembrance** and wield the **Ice** element, acting as a powerful AoE DPS reliant on summon mechanics.
• Dan Heng SP (Terravox): Following the success of Imbibitor Lunae, another Special Version of Dan Heng is rumored. This new form, named Terravox, is expected to be a **free 5-star Physical Preservation support character**. He revolves around summoning a majestic dragon to grant powerful single-target shields and team-wide damage reduction.

These SP versions are highly anticipated as they offer players new ways to experience and build their favorite characters, significantly expanding team composition possibilities.

Story and Lore Implications

The introduction of new characters from both a collaboration and SP versions carries significant story and lore implications.

• A *Fate/stay night* collaboration represents a monumental crossover, potentially indicating interdimensional travel beyond what we’ve seen, or a unique narrative event within the current Star Rail universe. The collaboration event, “Sweet Dreams and the Holy Grail,” is a Trailblaze Continuance that weaves these worlds together.
• The new SP versions of March 7th and Dan Heng strongly suggest critical developments in the main story. March 7th’s evolving identity is a central mystery, and a new version could be tied to a major revelation about her past or true nature. Similarly, another Dan Heng SP could further explore his connection to the High-Cloud Quintet and his hidden powers, pushing the narrative forward in unexpected ways. These character releases are likely to be intertwined with new Trailblaze Missions, Companion Missions, or major events that expand the rich lore of Honkai: Star Rail.

The prospect of Honkai: Star Rail Version 3.6 brings immense excitement to the community. Whether it’s through groundbreaking collaborations or transformative SP versions of existing characters, Version 3.6 promises to deliver fresh content, challenging gameplay, and captivating story developments. Keeping an eye on official announcements and preparing your resources will ensure you’re ready for whatever new challenges and companions await.