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Merged
taroface merged 4 commits into from
Feb 26, 2026
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add MOLT Feb release notes #22853

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d31e9a4
add MOLT Feb release notes
taroface Feb 25, 2026
4fe37dc
Update src/current/releases/molt.md
taroface Feb 26, 2026
e568037
clarify --dataDir
taroface Feb 26, 2026
55ac2ee
Merge branch 'main' into molt-release-notes-feb
taroface Feb 26, 2026
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19 changes: 19 additions & 0 deletions src/current/releases/molt.md
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Expand Up @@ -23,6 +23,25 @@ Cockroach Labs recommends using the latest available version of each tool. Refer
<button class="filter-button" data-scope="replicator"><code>replicator</code></button>
</div>

### February 26, 2026

<section class="filter-content" markdown="1" data-scope="molt">
`molt` 1.3.6 is [available](#installation):

- Added support for selective data verification on PostgreSQL and MySQL sources, allowing users to compare a subset of data from both source and target databases based on filter predicates.
- Fixed an issue where MOLT Fetch failed to copy data from PostgreSQL when numeric arrays contained negative values.
</section>

<section class="filter-content" markdown="1" data-scope="replicator">
`replicator` 1.3.1 is [available](#installation):

- Added support for Oracle's Large Object (`CLOB`, `NCLOB`, `BLOB`, `LONG`) and binary (`RAW`, `LONG RAW`) datatypes when failing back from CockroachDB to Oracle, within currently supported size limits.
- Added support for failback replication with mismatched time types between CockroachDB and Oracle (for example, `TIMESTAMPTZ` to `TIMESTAMP`/`DATE`), and support for Oracle timestamp replication regardless of NLS format settings.
- Replication from MySQL sources now supports core sequencer and the `--target-apply-queue-size` flag with core sequencer metrics, leading to improved throughput for migrations from MySQL.
- Added support for metrics snapshotting to aid in support investigations. This feature is off by default but can be configured to capture metrics dumps. Included `export-metrics-snapshots.sh` and `import-metrics-snapshots.sh` helper scripts to package metrics snapshots.
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@jhlodin jhlodin Feb 26, 2026

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Should link to relevant docs. Seems like /molt/molt-replicator#metrics would be the right location

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@ryanluu12345 ryanluu12345 Feb 26, 2026

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Agreed, now that we have the metrics snapshotting section (just so customers can explore the feature)

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@taroface taroface Feb 26, 2026

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For maintainability, we stopped linking release notes to docs a year or two ago. I'm inclined to keep that consistent unless there is a strong reason MOLT and CRDB release notes should differ on this.

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@jhlodin jhlodin Feb 26, 2026

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ACK. If it's precedent then no need to break on my count. As long as we don't end up with features only documented in release notes, but that's not the case here.

- Added the `--dataDir` flag to configure the base data directory for metrics snapshotting.
</section>

### January 22, 2026

<section class="filter-content" markdown="1" data-scope="molt">
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