This is the translation:

Launches 3 Rainblades and 1 Stygian Resurge successively, dealing at most Lightning DMG equal to 223% (446%) of Acheron's ATK to a single target enemy, and dealing at most Lightning DMG equal to 180% (360%) of Acheron's ATK to other targets.

Rainblade: Deals Lightning DMG equal to 14.4% (28.8%) of Acheron's ATK to a single target enemy and removes up to 3 stacks of Crimson Knot from them. When Crimson Knot is removed, immediately deal 1 instance of Lightning DMG equal to 9.0% (18.0%) of Acheron's ATK to all enemies. Each stack of Crimson Knot removed will increase this DMG multiplier up to 36.0% (72.0%).

Stygian Resurge: Deals Lightning DMG equal to 72% (144%) of Acheron's ATK to all enemies and removes all stacks of Crimson Knot.

During the Ultimate, Crimson Knot cannot be inflicted on enemies.

EDIT: Too much text but they seem wording changes only.

[HSR - 2.1 BETA] Skin Reward

There are some hints that we may finally get a skin, most likely March's, as a reward on the "Vignettes in a Cup" event during this patch.

Do note I am saying this without full confidence and I could be wrong.

Don't take this as reliable info as I'd say there's more chances I'm wrong than right.

[HSR - ??] Jade Kit (Updated)

NOTE: This is subject to change and might not be 100% correct.

Rarity: 5*
Element: Quantum
Path: Erudition

Skill:
Choose target to buff for X of Jades turns
If target is Jade then while this is active, if Jade attacks then give flat energy (If A2) and the attack has additional quantum dmg dealt based on Jade
If target is an ally then take some HP from the ally. Increase the Ally's SPD. While the buff is active, When the Ally attacks, Jade gains flat energy (If A2) and the attack has additional quantum dmg dealt based on Jade
(Note: Only 1 Skill buff can be used at once)

Ultimate:
Jades next X Followup Attacks after using her Ultimate do extra damage
Singular instance of Quantum damage to all enemies

Passive:
Get X Stacks each time an ally (excluding Jade) attacks whilst buffed by Jade
Get 1 Stack for each enemy attacked by Jade's Basic or Ultimate, if she has her self buff, she also gets an extra X charges per enemy
When at least N Charges are accumulated, consume N Charges and:
1 - Add X Stacks (Temp Name: Contract Rate) (up to X).
For Each stack, gain additional ATK% (If A6 then also CDmg) to Jade
2 - Do a FuA to all enemies on the field (Extra FuA done if buffed by Ultimate)

On Entering battle, increase the Contract Rate counter by the amount of enemies on the field. Each additional enemy spawn also increases the counter by 1

A4: Act immediately at start of a fight.

Technique:
Summon and a blind (Like Sampo)

[HSR - 2.1]

There's information that suggests we will be getting 20 Star Rail Special Passes in 2.1, most likely spanning across 7 days.

[HI3 - 7.4 BETA] Shigure Kira Skin

[HI3 - 7.3/4] Thelema/Selim(?) Model

She'll be the new unit in 7.4. Uses Chain weapon.

[HI3 - 7.4 BETA] Garuda Hua Skin

[HI3 - 7.4 BETA] Ai-chan Skin

[HI3 - 7.3 BETA] Lantern Model

She will be playable in the future. Unsure of the weapon type specifically but seems to be a mix of two weapons.

[HI3 - 7.4 BETA] New Astral Ring - Destiny's Wheel

An Astral Ring protected by the Destiny's Wheel. In the Stellar Outburst state, changes occur when switching party members.
When acting as the Leader, for every character with Shadow trait in the party, gain additional buffs.

EDIT: We don't have an official name for the "trait," and not sure how it works in-game yet or what it is specifically.

[HI3 - 7.4 BETA] Thelema/Selim Kit Summary

Desc: MECH-Type character. Ice. Uses chain swords to attack.

Basic ATK: Short chain attacks that deal Ice DMG. Skills reduce DMG received and gain Aerial Energy.
Combo ATK: Chain uppercut and downwards strike NA combo (long press) When triggered on ground does Ice DMG uppercut, in air does Ice DMG Downwards Strike. Skill does extra DMG.
Evasion: Can evade 3 times in ground, 2 times in air and 1 jump. Skills increases extra damage on next hit, and recovery of Energy/Evasion.
Ultimate: Deals AoE Ice DMG to target and surrounding units. Skill recovers Energy.
Leader: In Astra Ring, increases strength based on Shadow(?) type characters. Increase Ice DMG, buffs to Stellar Outburst/Drain and Ultimate Evade CD reduction.
Passive: 3 units of Aerial Energy and 3 of Ground Energy. You gain Aerial ones by Aerial attacks and Ground ones via ground attacks. Consume Energy via Evasion. Extra attacks will consume Stellar Drain, and when Astral Ring is inactive, SP Recovery increases. Gain Stellar Drain when entered combat. In Open World this triggers every 10 min utes. After Extra Attack, the next 6 Energy is gained through attacks and deals Ice DMG. If gainnig Energy through attacks, if the attack was different to previous one deal extra Ice DMG. If Energy is full, next attack unleashes Extra Attack.
Weapon: Long Chain Attack, tosses chainblade towards enemy and leave a spinning blade that deals Ice DMG. In air, drags the enemy. Combo on ground dashes forwards and spins, in air continuously swings and deal Ice DMG. Skills pull in enemies and increase DMG to shields.
Astral Ring: In the Astral Ring burst state, when tapping on party member's portraits, they will attack on the field as phantoms. After that, Phantom Attacks will occurs when you attack for a period of time.