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Please read VoipNow Deprecating Notice before going further.
Before Upgrade
MySQL and Elasticsearch database
The new version contains significant MySQL and Elasticsearch database optimizations. Unfortunately, due to the schema changes the update these improvements, a reindex is necessary, which might take hours time on a large databasedatabases. However, we made available a script that updates the database databases prior to the actual VoipNow 5.2.5 upgrade, without downtime.
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