Counter - Strike 1.4

: Added a significant stamina penalty for jumping. Landing from a jump slowed player movement temporarily to prevent excessive hopping.

Interestingly, version 1.4 had a very short lifespan. It was released in late April 2002, and by June 12, 2002, version 1.5 had already arrived to fix major bugs. Because of this rapid succession, many players remember the 1.4/1.5 era as a single, blurry memory of pre-Steam gaming. Why It Still Matters counter strike 1.4

, version 1.4 introduced features that redefined the game's competitive landscape and technical integrity. The Technical Evolution Counter-Strike 1.4 was the first version to integrate Valve Anti-Cheat (VAC) : Added a significant stamina penalty for jumping