PyPI · pypi:fastjsonschema

fastjsonschema active

Fastest Python implementation of JSON schema

The latest stable version of fastjsonschema is 2.22.3, published on 2026-11-01. Verified by Vigia on 2026-11-13.

Latest stable version	2.22.3
Published	2026-11-01 21:11:29 UTC
Install	`pip install --upgrade fastjsonschema`
Requires	`python >=3.10`
License	BSD-3-Clause
Advisories on latest version	none known
Last verified	2026-11-13 05:43:53 UTC
Sources	pypi.org

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Maintenance

Activity	active
Last stable release	2026-11-01 21:11:29 UTC · 11 days ago
Stable releases in the last 12 months	4
Published versions	49

Heuristic based only on release dates; it does not measure issue or security response times.

Version history

Version	Published
`2.22.3`	2026-11-01 21:11:29 UTC
`2.22.2`	2026-08-15 19:47:04 UTC
`2.22.1`	2026-07-27 13:31:03 UTC
`2.22.0` withdrawn	2026-07-25 20:32:33 UTC
`2.21.2`	2025-08-14 18:49:34 UTC
`2.21.1`	2024-12-02 10:55:07 UTC
`2.21.0`	2024-11-27 20:47:27 UTC
`2.20.0`	2024-06-15 13:27:46 UTC
`2.19.1`	2023-12-28 14:02:04 UTC
`2.19.0`	2023-11-14 20:03:24 UTC
`2.18.1`	2023-10-01 07:59:25 UTC
`2.18.0`	2023-07-22 18:29:50 UTC
`2.17.1`	2023-05-22 05:51:27 UTC
`2.17.0`	2023-05-21 06:11:25 UTC
`2.16.3`	2023-02-25 12:45:04 UTC
`2.16.2`	2022-09-19 16:49:54 UTC
`2.16.1`	2022-07-17 07:51:51 UTC
`2.16.0`	2022-07-17 07:39:27 UTC
`2.15.3`	2022-01-09 08:44:22 UTC
`2.15.2`	2021-12-12 14:35:17 UTC

Showing the 20 most recent of 49 versions. JSON

Version compatibility

Newest stable version that declares support for each runtime version (from the requirements published with each version).

Runtime	Newest compatible version
`python 3.8`	`2.21.2`
`python 3.9`	`2.21.2`
`python 3.10`	`2.22.3`
`python 3.11`	`2.22.3`
`python 3.12`	`2.22.3`
`python 3.13`	`2.22.3`

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Frequently asked questions

What is the latest version of fastjsonschema?

The latest stable version of fastjsonschema is 2.22.3, published on 2026-11-01. Verified by Vigia on 2026-11-13.

How do I install the latest version of fastjsonschema?

Run pip install --upgrade fastjsonschema. The latest stable version is 2.22.3 (verified 2026-11-13).

Is fastjsonschema deprecated?

No. fastjsonschema is not marked as deprecated in the registry.

Which Python version does fastjsonschema require?

fastjsonschema 2.22.3 declares this requirement: python >=3.10.

Does fastjsonschema 2.22.3 have known vulnerabilities?

No known advisories affect fastjsonschema 2.22.3 according to the data Vigia checks.

Is fastjsonschema still maintained?

fastjsonschema published 4 stable releases in the last 12 months; the most recent was 11 days ago. Activity: active.

Observed changes

Sun Nov 01 2026 21:13:04 GM +0000 (Coordinated Universal Time) — released 2.22.2 → 2.22.3

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