CS2 Update October 13, 2025

[p align="start"]A new pre-release build (“1.41.1.3-rc1”) is now available in the CS2 beta depot. This build is not compatible with public matchmaking.

[p align="start"]For instructions on how to opt into a CS2 beta depot build, visit the following page:

https://support.steampowered.com/kb_article.php?ref=9847-WHXC-7326

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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.

• 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.

MAP SCRIPTING

• cs_script enums can now be imported and behave the same as TypeScript enums.

  • CSWeaponType.PISTOL == 1

  • CSWeaponType\ == "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.OnPlayerDamage 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()