CS2 patch updates engine and nerfs defuse

Counter-Strike 2 Release Notes for 10/15/2025

[ENGINE]

– Updated engine code to the latest version of Source 2.
– Reworked bullet penetration simulation to reduce CPU usage.
– Improved core utilization of some client particle and sound effects processing, reducing overall CPU usage when players are shooting.

[GAMEPLAY ]

– Defusing C4 will now lower the viewmodel weapon, prevent scoping, and delay firing the weapon by 150ms after exiting the defuse.
– C4 will no longer detonate in the middle of halftime intermission or after the end of the match.
– Fixed a case where 1 tick was incorrectly subtracted from sv_predictable_damage_tag_ticks.

[UI]

– Major Highlight clips are now viewable from the Spectator Loadout.
– Selected player is now more visible in the Team Counter.
– Context menu in the Inventory now opens in a position relative to the cursor.
– HUD weapon mode indicator has been moved to the ammo count.
– Raindrops are now removed from weapons when switching to a dry inspect environment.

[MAP SCRIPTING]

– cs_script enums can now be imported and behave the same as TypeScript enums.
• CSWeaponType.PISTOL == 1
• CSWeaponType[1] == "PISTOL"
– Added enums CSRoundEndReason, CSHitGroup, CSLoadoutSlot, CSDamageTypes, CSDamageFlags and CSWeaponAttackType
– Added BOOSTS value to CSGearSlot. This is the gear slot for healthshots.
– Updated Instance.OnRoundEnd to now receive the reason
– Updated Instance.OnBeforePlayerDamage to now receive damageType and damageFlags and the result can now modify damageType and damageFlags
– Updated Instance.erDamage to now receive damageType and damageFlags
– Updated Instance.OnKnifeAttack to now receive attackType
– Updated Instance.TraceLine, Instance.TraceSphere and Instance.TraceBox
• The trace config now accepts an array of ignore entities or just one
• The trace config can specify to trace against hitboxes
• The trace result will include hitGroup if tracing against hitboxes
– Updated Instance.BulletTrace result to include hitGroup
– Updated Entity.TakeDamage to accept damageType and damageFlags
– Added CSWeaponData.GetGearSlot()

Origin: www.counter-strike.net