Autodesk Maya 2018.5 -
Why? Because it was the last version that ran reliably on older hardware (pre-AVX2 processors) and the last version that didn't require an enterprise subscription for basic scripting tools. Consequently, it became the pirated version of choice for students in developing nations for nearly three years (2019–2022).
In the pantheon of VFX and game development lore, certain software versions become legendary: Maya 8.5 (the introduction of Nucleus), Maya 2011 (the rebirth of the UI), or Maya 2016 (the year of Bifrost). Ask a veteran artist about Maya 2018.5 , however, and you’ll likely get a shrug. "Wasn't that just a service pack?" Autodesk Maya 2018.5
If you are a studio still using Maya 2018.5 today (and yes, many mid-sized game studios are), you aren't behind the times. You are riding the peak of stability before the modern telemetry-laden, cloud-dependent versions took over. In the pantheon of VFX and game development