# Oplog Format

**URL:** https://forums.percona.com/t/oplog-format/7085
**Category:** Percona Server for MongoDB
**Created:** [June 29, 2019, 2:24pm UTC](https://forums.percona.com/t/oplog-format/7085 "2019-06-29T14:24:37Z")
**Posts on this page:** 1
**Page:** 1

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### Author: ![hklohar](https://avatars.discourse-cdn.com/v4/letter/h/e5b9ba/32.png) [@hklohar](https://forums.percona.com/u/hklohar)
#### Post date: [June 29, 2019, 2:24pm UTC](https://forums.percona.com/t/oplog-format/7085/1 "2019-06-29T14:24:37Z")

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I remember Mongo Oplog used to show $set/$unser for update operations.  
With recent percona mongodb image 4.0/3.6 i see the whole updated document shows up in oplog.  
Is there a configuration to change this or which release still has support for old format.