See Upgrade and Downgrade for upgrade considerations
New Gateway source and destination
Add force_flush_period and max_log_size parameters to file log source
Upgrade and Downgrade
Downgrades from 1.52.0 to previous versions of BindPlane are not supported if you make use of the new OTTL condition builder feature. BindPlane 1.52.0 introduces a new parameter type that will not render.
Condition Builder
The new condition builder allows the user to easily create OTTL.