Availability and exact names vary by version/build.
Meteor Client offers various settings to customize your experience: Meteor Client 1.21.1- 1.20.6 -- 1.16.5
While the newer versions are flashy, Meteor Client for 1.16.5 remains the most downloaded legacy version. Why? Because many of the oldest and most popular anarchy servers (like 2b2t.org, 9b9t, and Constantiam) are frozen on 1.16.5 or 1.12.2; however, Meteor does not support 1.12.2 directly, so 1.16.5 is the go-to for "modern legacy" play. Availability and exact names vary by version/build
Key Differences in 1.16.5: