Update 37.0 (2024-10-02)

Fixed enemies not being open to Finishers when put to sleep by the first hit from Cobra and Crane when wielded by Baruuk.
Update 36.0 (2024-06-18)

Baruuk Reactive Storm Changes
We’ve updated his “Serene Storm” Augment to properly adapt to the new Vulnerabilities, rather than the optimal Health Type as was before.

Adjusted Baruuk’s Reactive Storm to utilize the new Vulnerabilities system rather than the Health Type system - Reactive Storm will behave the same way it did before, but we’re just ensuring it works properly with the new system!
Update 35.5 (2024-03-27)

NEW WARFRAME AUGMENT MODS
11 new Warframe Augment Mods are available from Syndicate Offerings! 
Stats below are shown at Max Rank.
Elusive Retribution (Baruuk - Elude)
Every attack Baruuk Eludes increases his Melee Attack Speed and Melee Critical Damage by 5% up to 6 stacks. Stacks last 6s.
Available in the Arbiters of Hexis and New Loka offerings.
Update 35.0 (2023-12-13)

Fixed casting Baruuk’s Desolate Hands ability in Teshin’s Cave targeting the kneeling Warframes, which was also causing a script error.
Update 34.0 (2023-10-18)

Base vs Final Stats in Modding - Health / Energy / Shield / Armor Stat Overhaul
If you’ve spent any time invested in the deeper nuances of Modding, you may be familiar with “Warframe Math” - math that upon first glance doesn’t really make sense, but once you learn the inner workings of the game, it all comes together. While we can appreciate the value that complex systems offer to a certain subsect of players, there are other aspects of the game that should have clear and understandable outcomes. Namely: Shield, Health, Energy, and Armor Modding. 
Pop quiz: what is 300 + 440%? If you answered 740, you may just be an Excalibur player.
Vitality (+440% Heath), Redirection (+440% Shields), Flow (+150% Energy), and Steel Fiber (+110% Armor) come with large modifier values that don’t seem to match their outcome in-game. This is because these Mods apply their multiplier to the base stats of the Warframe - i.e., the stats you have at Rank 0. In the Excalibur example, a Rank 30 Excalibur’s Health stat of 300 earns an additional 440 Health from max rank Vitality (+440% Heath) since it applies to his base rank Health stat of 100, resulting in 740 total health.
In this update, we have removed this obfuscation by having Health, Shield, Energy, and Armor Mods apply to the stats of Warframes at their current rank. Continuing our Excalibur example, instead of Vitality always applying to Excalibur’s base rank 100 Health, it would apply to his Health stat based on his rank - namely, the stat you can actually see in your Arsenal. If your Excalibur were Rank 30, his Health stat would be 300, which means Vitality’s multiplier would be calculated off of 300.
With previous Health and Mod values, additional adjustments are needed to make this revision work while maintaining game balance. By only changing where the multiplier applies, a Rank 30 Excalibur would receive an extra 1,320 Health from max rank Vitality, resulting in a total health stat of 1,600. This outcome is a significant buff, which is not the intention of this system change. 
To remedy this, we approached this problem in two ways:
1 - We reduced the overall multiplier for Health, Shield, Energy, and Armor Mods.
Since these now affect Max Rank Warframe stats, these Mods need to scale differently to maintain the status quo. Additionally, we wanted these new values to be as clear and understandable to all players as possible! Here are a few examples of these value changes:

Vitality: Reduced from +440% to +100% Health
Redirection: Reduced from +440% to +100% Shield Capacity
Steel Fiber: Reduced from +110% to +100% Armor
Flow: Reduced from +150% to +100% Energy Max
Note: These are not all of the Mods affected by this change. We share the comprehensive list further down in this section of the update notes.
Doing some quick math, this means that a Rank 30 Excalibur (300 Health) with a reworked Vitality Mod (+100% Health, applied to the final Health stat) would receive 300 extra Health, for a total of 600. That, in contrast, is a nerf, which we also don’t want to do. 
So, our next step:
2 - We adjusted Warframe Health, Shield, Energy, and Armor values to keep the end result of the revised Mods as close to the original values as possible.
With this change, Excalibur’s Rank 30 Health stat is 370. With +100% Health from a max Vitality Mod, his resulting Health stat would be 740, which matches what it was originally. 
While this path to the same result may seem a little complicated, the outcome matches our intention: we want players to be able to look at their Health, Shield, and Armor Mods, and be able to understand how they affect the stats they see in their Arsenal.
In addition to everything above, we also increased the base stat values for Warframes so that these revised Mods offer similar value for lower-ranked Frames. To do so, we reduced the amount of Health/Shield/Energy that Warframes earn per rank in half, and transferred the sum of that value to their base stats.
For Armor, this is the one stat that does not increase with your Warframe’s level (with some exceptions). Armor values across the board have been slightly increased to compensate for the Mod changes.
Not to beat a dead Kaithe, but Mods will now be applying to the Max Rank stat instead of the Base Rank. You may look at these numbers and think “nerf” or “buff” depending, but the outcome is that total Modded values are the same, if not a little higher in some cases.
Warframe Stat Changes:
BARUUK
Health: Base Rank - 180 (from 75) / Max Rank - 280 (from 225)
Shields: Base Rank - 270 (from 100) / Max Rank - 370 (from 300)
Armor: Base Rank - 185 (from 175)
Energy: Base Rank - 200 (from 200) / Max Rank - 300 (from 300)
BARUUK PRIME
Health: Base Rank - 180 (from 75) / Max Rank - 280 (from 225)
Shields: Base Rank - 365 (from 125) / Max Rank - 465 (from 375)
Armor: Base Rank - 240 (from 225)
Energy: Base Rank - 200 (from 200) / Max Rank - 300 (from 300)
While there may be significant changes to Warframe Stats and Mod values as a part of this overhaul, the end result is that your Builds should mostly stay the same. The key difference is the added clarity of what your Health / Shield / Energy / Armor Mods do in your Upgrade screens!
Hotfix 33.6.4 (2023-08-15)

Fixed shields (from Sword and Shield Melee weapons) sitting backwards on Baruuk’s arm when his Doan Skin is equipped.
Hotfix 33.5.5 (2023-07-06)

Fixed Baruuk’s Lull ability SFX not playing in their entirety if cast quickly in succession.
Hotfix 33.5.3 (2023-06-23)

Fixed several issues with Warframe Overguard reducing the effectiveness of the following supportive abilities/effects:
Fixed Baruuk’s Desolate Hands damage reduction being capped at 50% instead of the intended 90%.
Update 33.0 (2023-04-26)

Fixed a script error with Baruuk’s Lull.
Hotfix 32.2.9 (2023-01-11)

Fixed script errors caused by Baruuk’s Lull and Serene Storm.
Hotfix 32.2.7 (2022-12-15)

Fixed Baruuk not gaining Energy from Energy Restores while Serene Storm is active.
Fixed offset issues with the Embolist Leg Growths Armor and Galvanik Leg Plates when equipped on Baruuk Prime.
Fixed Baruuk’s Elude deactivate sound FX not always playing.
Hotfix 32.2.6 (2022-12-14)

Fixed offset issues with the Ransha Prime Shoulder Plates when equipped on Baruuk Prime.
We will continue fixing other known offset issues over time.
Hotfix 32.2.5 (2022-12-14)

Introduced Baruuk Prime.
Hotfix 32.0.12 (2022-10-12)

Fixed the Theorem Demulcent Arcane applying its weapon damage increase buff to Baruuk’s Desolate Hands.
Theorem Demulcent is designed to only increase weapon damage and should not be able to affect any Warframe ability.
Update 32.0 (2022-09-07)

Fixed script error with Baruuk’s Serene Storm.
Update 31.6 (2022-06-09)

Fixed Baruuk being unable to damage Eximus units with his Serene Storm waves.
Update 31.5 (2022-04-27)

Fixed Lull not refreshing on normal kills when Client activates Baruuk's Lull ability with the Endless Lullaby equipped.
Update 30.9 (2021-11-11)

Fixed the Tenet Agendus’ shield appearing partially upside down when equipped with Baruuk.
Update 29.7 (2021-02-01)

Fixed Baruuk’s Desolate Hands dagger projectile sounds becoming repetitious over time.
Update 28.1 (2020-07-08)

Xoris Interaction Changes

Certain Warframe Abilities and Exalted weapons will now reset the Melee Combo Counter only if the Xoris is being used. The overwhelming Damage output of certain Warframe Abilities was not our intention with an infinite Melee Combo weapon, and the conversation of ‘Xoris or you’re doing it wrong’ is greatly restrictive in terms of player choice.
Warframe Abilities / Exalted Warframe weapons affected by this are:

Baruuk Serene Storm
The full breakdown can be read here.
Hotfix 27.5.6 (2020-05-26)

Fixed Baruuk’s Desolate Hands daggers not fully working with your Companion.
Hotfix 27.5.5 (2020-05-21)

Fixed a script crash that could occur on Clients if a dagger from Baruuk's Desolate Hands tried to fire at an enemy that was killed immediately.
Hotfix 27.5.4 (2020-05-20)

Baruuk’s Desolate Hands will no longer consume a charge from Baruuk when sharing with Allies.
Fixed inability to target Baruuk’s Desolate Hands on Defendable objects.
Hotfix 27.3.16 (2020-04-22)

Fixed a script error when loading into a mission and casting Baruuks Lull ability.
Hotfix 27.3.15.1 (2020-04-17)

Fixed a script error with Baruuk's Lull ability when used with Railjack Ability Kinesis.
Update 27.2 (2020-03-05)

Armor Change:
Baruuk: 150 to 175
Why: The conversation surrounding Arcane Guardian led to a significant review of Armor stats on Warfarmes. The Majority of Warframes received an increase in the Armor stat to increase survivability. Compounded with Shield Gating and the numerous other changes covered, we expect a much more fair feeling playing field for all Warframes.
Hotfix 27.1.0.1 (2020-02-04)

Fixed Baruuk’s Reactive Storm Augment resetting the Status Chance back to non-Augmented values after a direct punch to someone.
Update 27.1 (2020-02-04)


Update 25.7 (2019-08-29)

Fixed Baruuk taking much longer to deploy Spectres.
Fixed Baruuk’s Meroe helmet tassel sometimes disappearing when viewing his diorama at certain angles.
Hotfix 25.2.3 (2019-06-25)

Fixed Baruuk’s Desolate Hands charge indicator not updating for Clients after Transferring to the Operator.
Update 24.6 (2019-04-04)

Restored ability to have Baruuk's Desert Wind slam pull enemies instead of pushing them by holding block/aim key.
Update 24.4 (2019-03-08)

Melee combo damage multiplier now affects Baruuk Desert Wind waves.
Hotfix 24.2.8 (2019-01-15)

Baruuk’s Elude conal indicator FX will now only be seen by the local player (person casting the ability).
Slight tweak to Baruuk’s Elude ability FX that unnecessarily pulsed.
Fixed using Transference while Baruuk’s Savagery is active resulting in breaking his custom UI.
Hotfix 24.2.7 (2018-01-09)

Baruuk’s end of Elude animation no longer prevents movement.
Improvements towards performance/visual issues with Baruuk's Elude ability by removing the blur FX if using the ‘Low Particle Quality’ setting based on feedback: https://forums.warframe.com/topic/1048903-warning-baruuk-causes-epileptic-attacks/
Reduced the FX density of Baruuk’s Lull fog to fix reported performance issues.
Fixed Baruuk’s Desert Wind weapon displaying as having Impact, Puncture, and Slash in the Arsenal when it's just Impact.
Fixed Baruuk’s Serene Storm Desert Wind waves not hitting ragdolled enemies.
Fixed Baruuk’s Serene Storm Desert Wind waves not matching FX direction.
Fixed a script error when casting Baruuk’s Serene Storm ability.
Fixed a script error when casting Baruuk’s Desolate Hands ability.
Hotfix 24.2.5 (2018-12-20)

Animals will be less stressed the closer you are to them when casting Baruuk’s Lull ability.
Hotfix 24.2.3 (2018-12-19)

Fixed a script error that could occur if you died and revived shortly after casting Baruuk's Lull, resulting in affected enemies being permanently asleep.
Hotfix 24.2.2 (2018-12-18)

Fixed inability to edit the Baruuk Mandala Decoration after placing it.
Fixed Baruuk’s [PH] NOT EDGY ENOUGH UI text.
Update 24.2 (2018-12-18)

Introduced.