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In Abiquo 4.2, Abiquo released billing version 4.0.1, compatible with Abiquo 4.x. Added "bill_day_of_month" property to define the periods of billing aggregation on a monthly level.
4.7.1
The following new usage options were added in Abiquo 4.7.1
backup_usage with backup_policy_X and the backup_policy_X_code
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