Version 1.18.0:

Additions

• Added WorldRendererReloadCallback, an event that gets triggered when e.g. video settings are updated or the player joins a world

Changes

• Shaders' init callbacks now also run during the above event
  • This fixes resource leaks caused by setting a sampler uniform to a vanilla Framebuffer in those callbacks
• Added a warning in the logs for bad framerate when installed together with the Vivecraft mod

see full changelog here