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patrickbirch merged 1 commit into from
Sep 17, 2026
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Update release notes for version 8.4.0-7 #508

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2 changes: 1 addition & 1 deletion docs/release-notes/8.4.0-7.md
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Expand Up @@ -12,7 +12,7 @@ We recommend that you download the Percona XtraBackup for the same platform as t

* [PXB-3502](https://perconadev.atlassian.net/browse/PXB-3502): Improves parallel processing performance by processing files in largest-first order instead of discovery order. With `--parallel`, large tables and partitions start processing earlier, reducing the time spent waiting for large files after other parallel tasks complete. The improvement applies to `--backup`, `--prepare --incremental-dir`, `--copy-back`, `--move-back`, and `--decompress`.

* [PXB-3853](https://perconadev.atlassian.net/browse/PXB-3853): Improves incremental backups with page tracking by skipping unchanged page ranges between blocks of changed pages. This reduces unnecessary I/O, especially for large tablespaces, and keeps the amount of data read closer to the amount of changed data.
* [PXB-3853](https://perconadev.atlassian.net/browse/PXB-3853): Improves incremental backups with page tracking by skipping unchanged page ranges between blocks of changed pages. This reduces unnecessary I/O, especially for large tablespaces, and keeps the amount of data read closer to the amount of changed data. (Thank you to Reto Giezendanner for your contribution)

* [PXB-3862](https://perconadev.atlassian.net/browse/PXB-3862): Improves incremental backups with page tracking by reading nearby changed pages together instead of reading each page separately. This improves backup performance when changed pages are scattered. Backup contents and size remain unchanged. Set [`--page-tracking-merge-gap=0`](../xtrabackup-option-reference.md#page-tracking-merge-gap) to read each changed page separately.
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