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Update wire version feature list in markdown #1857

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Update wire version feature list in markdown
alexbevi Nov 19, 2025
621dcdb
format
baileympearson Nov 19, 2025
4744b95
fix format
baileympearson Nov 19, 2025
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46 changes: 23 additions & 23 deletions source/wireversion-featurelist/wireversion-featurelist.md
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# Server Wire version and Feature List

| Server version | Wire version | Feature List |
| -------------- | ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 2.6 | 1 | <p>Aggregation cursor</p> <p>Auth commands</p> |
| 2.6 | 2 | <p>Write commands (insert/update/delete)</p> <p>Aggregation $out pipeline operator</p> |
| 3.0 | 3 | <p>listCollections</p> <p>listIndexes</p> <p>SCRAM-SHA-1</p> <p>explain command</p> |
| 3.2 | 4 | <p>(find/getMore/killCursors) commands</p> <p>currentOp command</p> <p>fsyncUnlock command</p> <p>findAndModify take write concern</p> <p>Commands take read concern</p> <p>Document-level validation</p> <p>explain command supports distinct and findAndModify</p> |
| 3.4 | 5 | <p>Commands take write concern</p> <p>Commands take collation</p> |
| 3.6 | 6 | <p>Supports OP_MSG</p> <p>Collection-level ChangeStream support</p> <p>Retryable Writes</p> <p>Causally Consistent Reads</p> <p>Logical Sessions</p> <p>update "arrayFilters" option</p> |
| 4.0 | 7 | <p>ReplicaSet transactions</p> <p>Database and cluster-level change streams and startAtOperationTime option</p> |
| 4.2 | 8 | <p>Sharded transactions</p> <p>Aggregation $merge pipeline operator</p> <p>update "hint" option</p> |
| 4.4 | 9 | <p>Streaming protocol for SDAM</p> <p>ResumableChangeStreamError error label</p> <p>delete "hint" option</p> <p>findAndModify "hint" option</p> <p>createIndexes "commitQuorum" option</p> |
| 5.0 | 13 | $out and $merge on secondaries (technically FCV 4.4+) |
| 5.1 | 14 | |
| 5.2 | 15 | |
| 5.3 | 16 | |
| 6.0 | 17 | <p>Support for Partial Indexes</p><p>Sharded Time Series Collections</p><p>FCV set to 5.0</p> |
| 6.1 | 18 | <p>Update Perl Compatible Regular Expressions version to PCRE2</p><p>Add `*UCP` option for regex queries</p> |
| 6.2 | 19 | <p>Collection validation ensures BSON documents conform to BSON spec</p><p>Collection validation checks time series collections for internal consistency</p> |
| 7.0 | 21 | <p>Atlas Search Index Management</p><p>`$currentOp` aggregation Metrics</p><p>Compound Wildcard Indexes</p><p>Support large change stream events via `$changeStreamSplitLargeEvent` stage</p><p>`serverStatus` output gets new fields</p> <p>Slot Based Query Execution</p> |
| 7.1 | 22 | <p>Improved Index Builds</p><p>Exhaust Cursors Enabled for Sharded Clusters</p><p>New Sharding Statistics for Chunk Migrations</p><p>Self-Managed Backups of Sharded Clusters |
| 7.2 | 23 | <p>Database Validation on `mongos` Aggregation Queries</p><p>`serverStatus` Metrics</p><p>Default Chunks Per Shard</p> |
| 7.3 | 24 | <p>Compaction Improvements</p><p>New `serverStatus` metrics</p> |
| 8.0 | 25 | <p>Range Encryption GA</p><p>OIDC authentication mechanism</p><p>New `bulkWrite` command</p><p>`snapshot` read concern on capped collections</p> |
| Server version | Wire version | Feature List |
| -------------- | ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| 2.6 | 1 | <p>Aggregation cursor</p> <p>Auth commands</p> |
| 2.6 | 2 | <p>Write commands (insert/update/delete)</p> <p>Aggregation $out pipeline operator</p> |
| 3.0 | 3 | <p>listCollections</p> <p>listIndexes</p> <p>SCRAM-SHA-1</p> <p>explain command</p> |
| 3.2 | 4 | <p>(find/getMore/killCursors) commands</p> <p>currentOp command</p> <p>fsyncUnlock command</p> <p>findAndModify take write concern</p> <p>Commands take read concern</p> <p>Document-level validation</p> <p>explain command supports distinct and findAndModify</p> |
| 3.4 | 5 | <p>Commands take write concern</p> <p>Commands take collation</p> |
| 3.6 | 6 | <p>Supports OP_MSG</p> <p>Collection-level ChangeStream support</p> <p>Retryable Writes</p> <p>Causally Consistent Reads</p> <p>Logical Sessions</p> <p>update "arrayFilters" option</p> |
| 4.0 | 7 | <p>ReplicaSet transactions</p> <p>Database and cluster-level change streams and startAtOperationTime option</p> |
| 4.2 | 8 | <p>Sharded transactions</p> <p>Aggregation $merge pipeline operator</p> <p>update "hint" option</p> |
| 4.4 | 9 | <p>Streaming protocol for SDAM</p> <p>ResumableChangeStreamError error label</p> <p>delete "hint" option</p> <p>findAndModify "hint" option</p> <p>createIndexes "commitQuorum" option</p> |
| 5.0 | 13 | $out and $merge on secondaries (technically FCV 4.4+) |
| 5.1 | 14 | |
| 5.2 | 15 | |
| 5.3 | 16 | |
| 6.0 | 17 | <p>Support for Partial Indexes</p> <p>Sharded Time Series Collections</p> <p>FCV set to 5.0</p> |
| 6.1 | 18 | <p>Update Perl Compatible Regular Expressions version to PCRE2</p> <p>Add `*UCP` option for regex queries</p> |
| 6.2 | 19 | <p>Collection validation ensures BSON documents conform to BSON spec</p> <p>Collection validation checks time series collections for internal consistency</p> |
| 7.0 | 21 | <p>Atlas Search Index Management</p> <p>`$currentOp` aggregation Metrics</p> <p>Compound Wildcard Indexes</p> <p>Support large change stream events via `$changeStreamSplitLargeEvent` stage</p> <p>`serverStatus` output gets new fields</p> <p>Slot Based Query Execution</p> |
| 7.1 | 22 | <p>Improved Index Builds</p> <p>Exhaust Cursors Enabled for Sharded Clusters</p> <p>New Sharding Statistics for Chunk Migrations</p> <p>Self-Managed Backups of Sharded Clusters</p> |
| 7.2 | 23 | <p>Database Validation on `mongos` Aggregation Queries</p> <p>`serverStatus` Metrics</p> <p>Default Chunks Per Shard</p> |
| 7.3 | 24 | <p>Compaction Improvements</p> <p>New `serverStatus` metrics</p> |
| 8.0 | 25 | <p>Range Encryption GA</p> <p>OIDC authentication mechanism</p> <p>New `bulkWrite` command</p> <p>`snapshot` read concern on capped collections</p> |

In server versions 5.0 and earlier, the wire version was defined as a numeric literal in
[src/mongo/db/wire_version.h](https://github.com/mongodb/mongo/blob/master/src/mongo/db/wire_version.h). Since server
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