I'll add onto this, putting an announcement out needs to be followed up by checking to see if the announcement has gained any traction.
Announcing breaking changes is not a checklist that can be filled out and then ignored. Put out an announcement, see if any other sites or prominent developers pick up on it, if they haven't picked up on it then the job isn't done and the change needs to be advertised more.
Maybe for some things posting it to the blog might be enough, and the major stakeholders that need to know will pick it up. Then you can move on to the next steps. But if they don't see it, and you don't see any reaction to the blog posts, then don't just move onto stage 2 because "they had their chance, if it breaks now it's their fault." :)
Have some standards of what level of conversation and preparation you expect to see from web developers before you consider the community adequately informed.
Announcing breaking changes is not a checklist that can be filled out and then ignored. Put out an announcement, see if any other sites or prominent developers pick up on it, if they haven't picked up on it then the job isn't done and the change needs to be advertised more.
Maybe for some things posting it to the blog might be enough, and the major stakeholders that need to know will pick it up. Then you can move on to the next steps. But if they don't see it, and you don't see any reaction to the blog posts, then don't just move onto stage 2 because "they had their chance, if it breaks now it's their fault." :)
Have some standards of what level of conversation and preparation you expect to see from web developers before you consider the community adequately informed.