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Qdrant version upgrade

Skill qdrant/skills/skills/qdrant-version-upgrade

Covers upgrading Qdrant server and SDKs without interrupting availability or losing data integrity. Use when someone asks 'how do I upgrade Qdrant', 'can I jump from 1.15 to 1.18', 'rolling upgrade without downtime', 'do I upgrade the client or the server first', 'which SDK version matches my server', 'what should I check before upgrading', or 'something changed after we upgraded'.From its SKILL.md

Install
npx -y skills add qdrant/skills --skill qdrant-version-upgrade

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

SKILL.md

5.3 KB, as published. Nobody here has run it

Qdrant Version Upgrade

Qdrant has the following guarantees about version compatibility:

  • Major and minor versions of Qdrant and SDK are expected to match. For example, Qdrant 1.17.x is compatible with SDK 1.17.x.

  • Qdrant is tested for backward compatibility between minor versions. For example, Qdrant 1.17.x should be compatible with SDK 1.16.x. Qdrant server 1.16.x is also expected to be compatible with SDK 1.17.x, but only for the subset of features that were available in 1.16.x.

  • For migration to the next minor version, it is recommended to first upgrade the SDK to the next minor version and then upgrade the Qdrant server.

  • Storage compatibility is only guaranteed for one minor version. For example, data stored with Qdrant 1.16.x is expected to be compatible with Qdrant 1.17.x. If you need to migrate more than one minor version, it is required do the upgrade step by step, one minor version at a time. For example, to migrate from 1.15.x to 1.17.x, you need to first upgrade to 1.16.x and then to 1.17.x. Note: Qdrant Cloud automates this process, so you can directly upgrade from 1.15.x to 1.17.x without intermediate steps.

  • A Qdrant cluster with a replication factor of 2 or higher can be upgraded without downtime by performing a rolling upgrade. This means that you can upgrade one node at a time while the other nodes continue to serve requests. This allows you to maintain availability of your application during the upgrade process. More about replication factor: Replication factor

For managing Qdrant version upgrades in Qdrant Cloud, you can use the qcloud CLI tool.

Pre-Upgrade Checklist

  1. Back up first: It's recommended to take a backup or snapshot before updating to allow for rollbacks. If the upgrade fails or you need to revert, you can restore the pre-upgrade snapshot. Qdrant Cloud applies data migrations during upgrades, so there's no live downgrade. Snapshots Cloud backups

  2. Check release notes for default and behavior changes, not just deprecations. Version upgrades may introduce changes to default settings, validation rules, or query behavior that can affect existing workloads even when APIs remain compatible.

  3. Test your client app against the target server version first in a non-prod environment, and check SDK release notes for deprecated/removed methods before switching over.

  4. It's recommended to run at least 2 CPU cores per node. During upgrades, Qdrant may perform background optimization while still handling regular operations. With only 1 core, these tasks can compete for CPU resources and can significantly slow down the upgrade process.

  5. Use a replication factor of 2 or higher if you need a zero-downtime rolling upgrade. With a replication factor of 1, the upgrade requires a downtime window.

Crossing More Then One Minor Versions

Use when: the running version is two or more minor versions behind the target.

  • Self-hosted: step through every intermediate minor version, and land on the latest patch of each before moving on. From 1.15 to 1.17, go to the newest 1.16.x first, then 1.17.x. Upgrading Qdrant
  • Each step is its own rolling restart, so the total is a multiple of a single-version upgrade. This takes longer than a single-version bump, so plan for it and prefer non-peak hours.
  • Qdrant Cloud chains the intermediate updates for you, so 1.15.x to 1.17.x is a single action. Updating Qdrant Cloud clusters
  • Upgrade on a regular cadence to keep future jumps to one minor version. Regular upgrades also reduce the complexity of future migrations by avoiding large version jumps.

Troubleshooting Behavior Changes After an Upgrade

Use when: results, scores, or latency look different once the new version is live.

  • When investigating a bug or unexpected behavior after an upgrade, check the release notes/changelog between the source and target versions for deprecations, default-value changes, and behavior changes that may affect your workload.

  • Compare relative ranking and recall against your pre-upgrade baseline, not absolute score values. Scoring internals can change between versions and still be correct.

What NOT to Do

  • Treat identical absolute scores as an acceptance criterion across versions
  • Read only the target version's notes and skip intermediate minor and patch releases
  • Jump multiple minor versions at once on self-hosted deployments
  • Assume a rolling upgrade finished without confirming that every node reports the target version

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.

Gives 0 of the 12 instructions most rag retrieval skills give

Counted across 199 of the 213 authors here whose files we hold, read 2026-09-06

  • Enable caching for frequent queriesin 14 of 199, across 5 files
  • Enable MMR for diverse resultsin 12 of 199, across 5 files
  • Enable binary quantization to reduce memoryin 11 of 199, across 4 files
  • Initialize the database with dimensions matching the embedding modelin 11 of 199, across 4 files
  • Start the similarity threshold at 0.7in 11 of 199, across 4 files
  • Check database statistics when diagnosing slow searchin 11 of 199, across 4 files
  • Export and import vectors as JSONin 10 of 199, across 3 files
  • Match index dimension to the embedding modelin 10 of 199, across 9 files
  • Order filters cheap before expensivein 9 of 199, across 2 files
  • Generate a runnable scaffold in the user's stackin 9 of 199, across 2 files
  • Recommend multi-action scoring when frequent tuning is expectedin 9 of 199, across 2 files
  • Batch store documents for bulk insertsin 9 of 199, across 2 files

Said here and by no other author read

  • Take a backup or snapshot before upgrading
  • Check release notes for default and behavior changes
  • Test the client app against the target version in non-prod
  • Check SDK release notes for deprecated or removed methods
  • Run at least two CPU cores per node
  • Use replication factor two or higher for zero-downtime upgrades

Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once.

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Skills are one crate of 626,194. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.