G10 Changelog

TW MHFG is not on an exact copy of the Japanese updates, these are simply the most likely changes. Historically we get all updates from an entire update cycle (G3, G3.1, G3.2 etc.) instantly with all refinements from the start, meaning it's highly likely we'll get all of the 'Project R' changes at the start along with the Hiden grind reduction and true hiden decorations.

G10 Monster Flow (JP):
1st Week: Guanzorumu
2nd Week: Nargacuga
5th Week: G Chameleos
6th Week: Shifting Mi Ru
7th Week: G Teostra
9th Week: G Kushala
G10.1 Monster Flow (JP):
13th Week: Voljang
15th Week: Ruling Guanzorumu
16th Week: Stygian Zinogre
19th Week: G and HC Rukodiora
25nd Week: G Kirin
30th Week: Z1 Launch

There are four new festival armours, so minimum duration for G10 should be assumed to be 16+ weeks.
It's unlikely to be shorter than 21 realistically.
And we probably won't end up on Z before JP is on Z2.

G10 Additions:
G Rank Teostra
G Rank Kushala
G Rank Chameleos
Nargacuga
Guanzorumu
Ruling Guanzorumu
G Rank Kirin (G10.1)
Vojang (G10.1)
Stygian Zinogre (G10.1)
G and HC Rukodiora (G10.1)
Switch Axe F
Cloud Viewing Fortress Area
New Keyboard and Mouse controls
Single time quests to try out Switch Axe F and Tonfas at HR5
New Skills (Lavish Attacker, Fortification, Switch Axe Tech (G10) Obscurity and Sniper (G10.1))
New Sigils (Unsheathed Movement Speed, [Switch Axe] Stunning Blast (G10), [Tonfa] Combo Timer)
New item to cure the various Blights (Fruit of Cancellation)
Ability to preview full armour sets without crafting anything at the smith
New log in reward system replacing the single boost after 2 weeks of inactivity
Diva Defense replacing Caravan Festival

G10 Changes:
Hold to gather and hold to climb
Post quest screens compressed
HR compressed from HR1-999 to HR1-7
SR abolished and merged into HR
SR challenge room made to be one rank set for all weapons (G10.1)
Key quests and urgents replace old progression
Quick jump menu added to warp to areas of town
Guild management extended
Tower Rank requirements for Transcend abilities removed
Style Rank skills unlock with HR
Can take Storm Style urgent immediately (Non-G Weapons)
Pugi cuffs on presets
Can choose food from quest posting menu (same area you choose guild only, HC etc.)
New weapon icon colour, easier requirements for old colours
Runner, Focus, Charge Attack Up, Guard all have additional effects on Switch Axe F

G10 HBG Balance:
Damage within first half of critical distance increased (1.5x > 2.0x first half of critical distance, 1.5 > 1.7x in second half)
Hiden skill multiplier increased (1.2x to 1.3x, 1.4x with Hiden armour untouched.)
Compression shot values for Normal Shots buffed

G10 DS Balance:
Various motion values changed
Wider evasion windows during whirlwind dance
Can sharpen before initiating a combo
Dual Swords tech causes you to enter Demon Dances faster
Combo flow for sharpen buff changed to be able to start from standing still.

G10 Rank Compression:
HR1 = 1★ HR1 (Guild creation, Partnyaas)
HR2 = 2★ HR2-30 (Rasta, Partners, Caravan)
HR3 = 3★ HR31-50 (Transcend)
HR4 = 4★ HR51-99 (Pugis, Trial Limit)
HR5 = 5★ HR100-299 (Style Rank movesets, Gou, HC)
HR6 = 6★ HR300-998 (Supremacy)
HR7 = HR999 (G Rank urgent)

G10 DS Motion Values:
Standard Mode:
Downslash 2: 9･7 > 10･8
Downslash 3: 7･5･11･16 > 9･7･14･24

Demon Modes:
Downslash 2: 12･9 > 13･11
Downslash 3: 9･6･14･21 > 11･9･19･32
Demon Dance: 31･6x8･37 > 30･6x10･37
Whirlwind Combo: 14x6 > 14x7

Red HP Drain:
Downslash 2: 13･10 > 14･11
Downslash 3: 10･7･15･23 > 12･9･20･35
Demon Dance: 33･7x8･40 > 33･7x10･40
Whirlwind Combo: 15x6 > 15x7

G10.1 Changes:
Hiden Grind scale reduced, particularly for merits.
Merits: +1 / +3 > +3 / +8
Souls and ribbons: +3 / +8 > +4 / +9
Ends up roughly 25-45% reduced depending on if using prem or hiden stones etc.

G10.1 Switch Axe Balance:
Heaven Style Buffed

G10.1 Additions:
True Hiden Decorations added, refined from existing ones at 4:1 ratio (Four different colours needed)

Project R Changes:
HR1-999 and SR1-999 condensed into HR1-7
Key Quests and urgents replace existing grind
Can select food for a quest while posting it
Combined all quest notices (HRP, GRP etc.) into one that can be instantly skipped
Can hold to gather or climb
Can jump to locations around town

Key Quests ~ Urgents:
Taikun / Kut Ku / Hypnoc ~ Abiorugu
Rathian / Dyura / Volganos / Guren ~ Espinas
Pariapuria / Rathalos / Nono Orugaron / Rajang ~ Rukodiora
White Hypnoc / Orange Espinas / Kuaru / Dora ~ Akura Vashimu
Baru / Dio / Toridcless / Toa Tesukatora ~ Supremacy Odibatorasu
Aruganosu and Goruganosu / Unknown
Shantien