ootoovak/ice_cube — comment on commit 05f8677efe02d1e06868c1cba7f91950b885f823
File: lib/ice_cube/schedule.rb line 299
By seejohnrun:

I think we need to keep the yaml ones backward around or we'll break backward compatibility with the old serialization formats.
I'd say that in to_yaml, we should make the change, but in from_yaml keep both around so the old format still works