Honkai: Star Rail Version 4.5 Complete Guide

Honkai: Star Rail Version 4.5, "To Roll the Stars in Astropolis," launches on August 26, 2026, bringing two new limited 5-star forms: Robin • Summeretto and Aventurine • Waveflair.

Phase 1 features Robin • Summeretto alongside a Hyacine rerun, while Phase 2 introduces Aventurine • Waveflair with Ashveil returning. Version 4.5 also adds the Overdrive: Whirlwind Grand Prix and Minuscule Great Adventure events, a Divergent Universe update, new Light Cones, and a new story dialogue speed-up option.

This guide covers the complete HSR 4.5 banner schedule, character mechanics, events, rewards, Stellar Jade planning, and everything announced during the Version 4.5 Special Program.

1. HSR 4.5 Release Date & Banner Schedule

• Version Release Date: August 26, 2026 (After server maintenance)

• Phase 1 Duration: August 26 — September 11 | Phase 2 Duration: September 12 — September 29

• Both Summer SP forms are limited 5-star characters and will not be added to the Standard Warp pool ("Stellar Warp").

• Character Event Warp pity and guaranteed pull counters continue across all limited character banners as usual.

• The new 4-Star event Light Cone "Race to the Horizon" can be claimed for free from the main version event.

2. Robin • Summeretto Kit Overview

• Core Resource [Vibes]: Allied attacks, shields, and heals all build up "Vibes" for Robin • Summeretto.

• Skill: Summons the Memo-Spirit "Sunny Musician." Reaching specific Vibes thresholds summons two additional musicians. Assembling all 3 triggers "Fever Pitch," which cleanses all team debuffs, grants sustained teamwide DMG boosts, and unleashes synchronized coordinated attacks.

• Ultimate: Enables a designated ally to "take action immediately" and regenerates their Energy while increasing Vibes.

• Technique: Enters battle with initial Vibes and increases teamwide DMG for an ultra-fast combat startup.

• Role & Synergy: A versatile action-advancing, energy-battery Sub-DPS. Highly flexible across Remembrance comps and standard teams alike, delivering robust buffs alongside off-field coordinated damage.

3. Aventurine • Waveflair Kit Overview

• Core Resources [Punchline] & [Fervor]: Casting his Skill or Ultimate builds resources; ally actions also stack "Fervor."

• Skill & Ultimate: Deals AoE Quantum DMG. In the "Applause Warranted" state, hits deal additional Elation DMG. His Ultimate boosts his own SPD.

• Core Mechanic: Stacking 8 Fervor points automatically triggers an "Elation Strike," unleashing AoE damage with multi-hit bounce attacks. Consuming all Fervor enters an empowered state, amplifying subsequent Elation Strikes.

• Technique: Immediately grants Fervor upon entering battle for instant rotation ramp-up.

• Role & Synergy: High-frequency, multi-turn Elation AoE Main DPS. Perfectly tailored for high-action-economy setups, excelling in both mob-clearing and single-target boss scenarios.

4. Version 4.5 Events & Rewards

New Version 4.5 Features

• Story Dialogue Speed-Up: Version 4.5 adds an official option to accelerate story dialogue, streamlining dialogue pacing and story progression during quests.

• Quality of Life Enhancements: Includes inventory management improvements, streamlined relic filtering, and faster access to Divergent Universe challenge resets.

Honkai: Star Rail × Zenless Zone Zero Collaboration

5. Stellar Jade & Pull Planning

Should You Pull Robin Summeretto or Aventurine Waveflair?

Version 4.5 runs on an accelerated 5-week schedule, giving players a tighter window to manage their Jade reserves:

• Support Priority: If your account lacks universal action-advancers, energy batteries, or teamwide offensive buffers, highly prioritize Robin • Summeretto in Phase 1.

• Main DPS Expansion: If you want to build around high-frequency action synergies and need a dedicated Elation carry, save your Jades for Phase 2's Aventurine • Waveflair.

• Resource Management: If you're short on Oneiric Shards before your target banner ends, you can use a reliable Honkai: Star Rail top up to cover the remaining gap before the limited banners rotate out.

Frequently Asked Questions (FAQ)