Revised editions as doctrine's revised (10)

I believe the answer is:

redactions

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'revised editions' is the definition.
The definition and answer can be both related to communication as well as being plural nouns.
Perhaps there's an association between them I don't understand?

'as doctrine's revised' is the wordplay.
'revised' is an anagram indicator.
'as'+'doctrine'='asdoctrine'
'asdoctrine' anagrammed gives 'REDACTIONS'.

Can you help me to learn more?

(Another definition for redactions that I've seen is " Changes".)

I've seen this clue in the Sydney Morning Herald.

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