I use json readers extensively in an app I'm updating from extjs 3.
When I create a store using a json reader, if there was an object metaData in the root of the json, it would automatically update the model.
It doesn't seem to do that anymore, although, when I look at the code, in readRecords it still is there, but it's somehow bypassing readRecords and read in the json reader.
Also, I detected when the meta data changed using the metachange event on the store, which is also gone. Any ideas of how I can effectively grab some meta data from a server response and get it in before the data tries to be read?