Many modders intentionally roll back to v1.58 (or earlier) because newer versions (1.59, 1.60, 1.63, 1.67) have stricter anti-tamper and online checks. v1.0.2545 is considered a for:

: Brought over from Story Mode into GTA Online for the first time, allowing you to taze players and NPCs.

For the single-player modding community, is a controversial but beloved version. Here is the state of affairs:

The update introduced the Buffalo STX (the first car in the game with an active missile lock-on jammer) and the Benefactor Terrorbyte-adjacent capabilities. It continued the trend of GTA Online transforming from a crime simulator into a pseudo-military shooter.