The Honkai: Star Rail Version 4.5 banner schedule is already looking like one of the most eye-catching updates of 2026. Based on the current banner projections, this patch is expected to bring two new 5-star character forms: Robin • Summeretto in Phase 1 and Aventurine • Waveflair in Phase 2.
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This update appears to lean hard into a summer vacation theme, with seaside visuals, new character variants, and strong community hype around both banners. The full kits are not officially finalized yet, so the real pull value will depend on their final numbers, signature weapons, rerun lineup, and how they fit into the meta.
Version 4.5 Banner Schedule Overview

The Version 4.5 release date is currently expected around late August 2026. Using the projected 21-day banner phase format, Phase 1 should begin around August 25, 2026, while Phase 2 should start around September 16, 2026.
These dates are estimated and may change once official information is released.
| Banner Phase | Estimated Dates | Featured 5-Star Character | Element | Path | Featured Weapon |
|---|---|---|---|---|---|
| Phase 1 | Aug. 25 – Sept. 16, 2026 | Robin • Summeretto | Wind | Remembrance | Currently unknown |
| Phase 2 | Sept. 16 – Oct. 06, 2026 | Aventurine • Waveflair | Quantum | Elation | Currently unknown |
At a glance, this patch has strong banner appeal. Both units are popular character variants, and each one changes Path and theme in a way that could affect team building. Still, players should treat all early kit details as subject to change until official data is available.
Which New Characters Are Debuting in Version 4.5?
Phase 1: Robin • Summeretto
Robin • Summeretto is expected to debut as a 5-star Wind / Remembrance character. Her promotional text points toward Astropolis, seaside scenery, music, memory, and inspiration for a new song. That gives her a clear summer-themed identity while keeping her close to the support-focused flavor players already associate with Robin.
Based on the provided early information, she may function as an HP-scaling buffer and Sub-DPS. Her rumored kit involves a “Memo” stack mechanic, team HP fluctuation tracking, offensive buffs, and off-field damage. That sounds like a high-ceiling support who rewards careful team planning.
For meta value, this new form could be a major piece for future Remembrance teams. If the final kit keeps the same direction, she may become a strong pull for players who like hypercarry setups, HP manipulation, and team-wide damage buffs.
However, her final multipliers, Skill Point cost, and exact buffs are not confirmed. For now, the safest read is this: high hype, high possible value, but wait for official numbers before hard committing.
Phase 2: Aventurine • Waveflair
Aventurine • Waveflair is expected to arrive in Phase 2 as a 5-star Quantum / Elation character. This is a big shift from the original Aventurine, so players should not assume he will play the same role as his older version.
The current public information connects him with a seaside holiday theme, a sponsored shoot, and his usual flashy confidence. Early kit descriptions suggest he may lean into RNG-based casino mechanics, Follow-Up Attacks, and turn manipulation.
His rumored gameplay includes dice-style checks, “Punchline” effects, a possible single-target Ultimate, and a Jackpot mechanic that may trigger strong action advance effects. If that direction survives into the final version, he could become a very fun but high-variance unit.
For now, his role looks closer to a chaotic Elation damage enabler than a classic sustain. That alone makes this banner interesting, especially for players who enjoy follow-up teams and gamble-style combat loops.
What New Weapons Are Releasing in Version 4.5?
Phase 1 Signature Weapon
Currently unknown.
The provided information does not confirm the name, stats, Path lock, passive effect, or banner details for Robin • Summeretto’s signature weapon. Since weapon value often depends on final kit scaling, players should wait before deciding whether to pull both the character and Light Cone.
If her rumored HP-recording support kit is accurate, her signature may focus on buffs, team damage, HP changes, Skill Point economy, or Remembrance-based effects. But this is only a possible direction, not confirmed information.
Phase 2 Signature Weapon
To be updated once official info is available.
The current data does not include the name or effect of Aventurine • Waveflair’s signature weapon. It is also unknown whether the Light Cone will boost Follow-Up Attacks, RNG mechanics, Ultimate damage, action advance, or Elation-specific effects.
Players who are low on pulls should avoid planning around the weapon banner until the official Light Cone details are revealed.
Which Characters Are Rerunning in Version 4.5?
The rerun characters for Version 4.5 are currently unknown.
No confirmed rerun lineup was included in the provided information. This means we do not yet know which older 5-star units will appear alongside Robin • Summeretto or Aventurine • Waveflair.
This section should be updated once the official banner phases are announced. Until then, do not spend Stellar Jades based on rerun rumors alone.
Are the Version 4.5 Characters Worth Pulling?
-
New Characters: Potential Pull, but wait for official kits.
Robin • Summeretto looks like the safer early target if her support and buffing role is real. A strong team-wide buffer usually has long-term value, especially if she supports a new Remembrance archetype. She may be worth saving for if your account needs a future-proof support or Sub-DPS style unit.
Aventurine • Waveflair looks more account-dependent. If his final kit focuses on RNG, Follow-Up Attacks, and action advance, he could be amazing for players who enjoy Elation-style teams. But if you prefer stable rotations and low-risk gameplay, his value may depend heavily on numbers. Verdict currently unavailable until official kit data is released.
-
Rerun Characters: To be updated.
Since rerun banners are not confirmed yet, there is no safe pull or skip verdict for returning units. If the rerun lineup includes a top-tier support, sustain, or DPS, it could change the overall banner value of this patch.
Frequently Asked Questions (FAQ)
When is the Honkai: Star Rail Version 4.5 release date?
The update is currently expected to launch around late August 2026. Based on the projected banner schedule, Phase 1 may begin around August 25, 2026, while Phase 2 may start around September 16, 2026. These dates are estimates and may change.
Who are the new 5-star characters in the Version 4.5 banner phases?
The two expected new 5-star character forms are Robin • Summeretto and Aventurine • Waveflair. Robin is linked to Wind / Remembrance, while Aventurine is linked to Quantum / Elation.
Should F2P players pull Robin • Summeretto or Aventurine • Waveflair?
For F2P players, the safer move is to wait for official kit details. If Robin keeps her rumored team-wide buffing role, she may have stronger general pull value. Aventurine may be more niche or team-specific if his RNG and Follow-Up mechanics are confirmed.
Does pity carry over between Version 4.5 banners?
The provided information does not mention pity rules. In Honkai: Star Rail, banner pity rules usually carry over within the same banner type, but players should always check the in-game banner details before pulling.

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