The 0.13 and 0.14 updates in 2016 were pivotal for the game's core systems:
A complete overhaul of the multiplayer code allowed for high-player-count games on a large scale, moving away from a lock-step architecture that had previously caused synchronization issues. Factorio (2016)
If your goal is to work with the latest features, the game recently released the expansion (October 2024), which introduced: Factorio (2016)