Full notes
Full Book Of Yog Idle RPG 依盖之书 update
Read the full published notes in a cleaner layout. The original post stays linked below.
What changed
- Gameplay
- Performance
- Balance
- UI and audio
- Store
- Maps
Dear Commander:
We plan to start update maintenance on 15:00, January 14 (UTC+8). The maintenance is expected to take 120 - 240 minutes.
*Please pay attention to the community and in-game rolling announcements for specific times.
After the maintenance, please update the client to the latest version before start the game.
During the maintenance, the players will be forcibly disconnected and unable to login. Please logout before the maintenance to avoid any data loss.
The following is the introduction of update contents:
Limited-time Optional Banner
To enhance the new player experience, all Commanders will gain limited-time access to the Optional Banner.
Available Blackguards in this Banner:
Coltish Artillerist, Legendary Dragon, Foxy Archduchess, Coffin Morrigan, Thorny Bramble, Centaur Minerva, Schneemond Princess, Shadowy Mirage, Nirvana Ignis, Judgement Hammer, Lady Swan Lake, Shamneko in Night, Blooming Ink Deer, Marine Rime, Flabellum Seraph, Falling Samele, Tundra Thunder, Everlasting Sol, Flicker Pierce, Jadeform Immortal, Phantasmal Dream, Double Shot Pursuit, Wightbone Dragon, Twinkle Palette, Skyborne Machina, Twinkle Palette, Golden Hatch, Blazing Shear, Celestial Luan
Duration: 2026.01.14 ~ 2026.1.27 12:00
All players can re-select their desired character from the banner.Pity progress from previous draws will be retained.
Newly created characters after the update will still enjoy a full 30-day banner duration, unaffected by the overall event end date.
Covenant of the Stars-New Additions
Skyborne Machina、Golden Hatch、Blazing Shear、Celestial Luan、Blossom Amour(Lower probability of obtaining; cannot be wished for)
When SP Blackguard is summoned, the summon line can play voice audio.
Time Capsule Fusion System
Commanders can now unlock Time Capsules, fuse and upgrade items, and freely trade to collect exclusive cosmetics and create a truly unique character look.
Fusion Upgrade
In Backpack > Fusion, you can fuse 10 items of the same type and quality to obtain a higher-tier version of that item. There is a small chance to trigger a Critical Fusion, upgrading the result into an accessory of the same tier.
Steam Trading
Steam players can package items obtained from Time Capsules and list them in their Steam Inventory for trading on the market. (Accounts flagged for violations are not eligible for this feature.)
New Quests Added to the Title Mission
We've added three new title mission — Apocalypse Commander, Judgment Commander, and Primeval Commander — for a total of 33 new title tiers.
Progression rewards include Crystallized Mist, Immortal Upgrade Stone, Covenant Crystal, and more.
Additionally, several Grand Commander tasks have been adjusted.
Trading Hall
In response to widespread player feedback regarding the excessively high prices of Catalyst items in the Trading Hall, we will adjust the Recommended Price for these listings after the upcoming version update to maintain economic balance and stable trading.
After the adjustment, newly listed items will adopt the updated Recommended Price. Existing listings will remain unchanged.
Otherrealm Stages
Adjusted drop rates for several Otherrealm stages, adding Archaic Addition Stone to the loot pool.
Improved the Otherrealm drop preview display, making unique rewards easier to identify.
Events
WINTER WHISPER
Qualification Activation:2026-01-19~2026-1-26,the sign-in event will end on 2026-2-2
Day 1:Winter Sign-in Box Ⅰ
Day 2:Winter Sign-in Box Ⅰ
Day 3:Winter Sign-in Box Ⅰ
Day 4:Winter Sign-in Box Ⅰ
Day 5:Winter Sign-in Box Ⅰ
Day 6:Winter Sign-in Box Ⅱ
Day 7:Winter Sign-in Box Ⅱ
Day 8:Winter Sign-in Box Ⅱ
Winter Sign-in Box Ⅰ:Winter Accessory Box x1、Universal Letter Opener x1、Covenant Crystal*30
Winter Sign-in Box Ⅱ:Winter Accessory Box x1、Universal Letter Opener x1、Covenant Crystal*60
Event Rule
Duration the Event, every【Sanguine Summon】will gain point, accumulate point to obtain massive pts reward. Event reward can be claimed up to 6 rounds
This event will have server/Cross server ranking, and will provide related ranking reward (The Heart of Summon leaderboard will be replaced)
Expected Event Duration
After Update ~ 2026.01.28 12:00
Event Rule
During the Event, consume FP will have chance to drop event coin「Sakura Emblem」. 「Sakura Emblem」can be used to exchange various reward on event shop.
Expected Event Duration
2026-1-15 8:00 ~ 2026-1-21 12:00
Event Rule
During the event period, every 1 FP commander consume will gain 1 event point, accumulate point to certain amount will gain stage reward, there will be 7 stage, up to 6 rounds.
Single-server and Cross-server leaderboard will be set on this event, rewards will be distributed based on the total event points accumulated during the event.
Expected Event Duration
2026-1-15 08:00 - 2026-2-13 12:00
Event Rule
During the event period, every blackguard summon will give 1 point, accumulate points to obtain massive accumulative point reward.
Expected Event Duration
2026-1-22 08:00 – 2026-1-28 12:00
Event Rule
During the event, Commander can obtain massive reward by completing series of [Superior Supply Line] task, bonus reward will be given after finishing all tasks.
There will be limited-time [Superior Supply Box] offered in Black Market.
Expected Event Duration
2026-1-15 08:00 - 2026-1-21 12:00
Event Rule
During the Event, Commander can obtain massive accumulative point reward after reaching certain Academy Cup point.
The Event will have separate Leaderboard, Blacktide Medal and Exclusive Avatar will be offered as ranking reward.
Expected Event Duration
2026-1-15 08:00 - 2026-1-21 12:00
Lucky Draw – Event Notice
Commanders, the new Starluck Blessing event will be available in the next update, and the current Lucky Draw event will be removed.
At that time, any remaining Lucky Charm in your inventory can be exchanged for desired materials in the Black Market → Event Shop → Lucky Exchange limited-time store.
BUG Fixes and Other Optimization
Fixed an issue where the Bear Kingdom – Blood Altar Boss, Heartfrost Matriarch · Skadi caused battle stutter due to abnormal summon frequency, and resolved a bug where her Ultimate could incorrectly knock back her own summons.
Improved the Great Temple interface, adding separate tabs for Relics and Mould.
Enhanced the Notice daily/weekly "Claim All" function — progress chests can now be collected with one tap.
Optimized the rewards for players in the top 2% of the Arena rankings, adding: Genesis S Title Chest, Collector's Letter Opener
Optimized the reward-claiming experience for Limited Packs
The game settings interface has been beautified, and a language option for in-game voice has been added.
Source
Changelog.gg summarizes and formats this update. How we read updates.
