0.12.0+1.21.3

This is a significant update to Highspeed Rail:

It adds support for the new experimental minecart physics.
The 'minecartMaxSpeed' gamerule can now effectively be set on a per-block basis.
Arbitrary minecartMaxSpeeds can be set (higher than the vanilla maximum of 1000). Use with caution.
Acceleration and deceleration values can also be tweaked (new physics only).
The new physics can be force-enabled in old and non-experimental worlds via a config setting.
The speedometer is supported (and accurate) with the new physics.
A lot of new configuration options have been added and changed, though compatibility has been maintained with older config files. See the new default config file here: https://github.com/pcal43/highspeed-rail/blob/main/src/main/resources/net/pcal/highspeed/default-config.json5

High-Speed Rail