PyPI · pypi:pycapnp

pycapnp active

A cython wrapping of the C++ Cap'n Proto library

The latest stable version of pycapnp is 2.2.4, published on 2026-07-03. Verified by Vigia on 2026-11-13.

Latest stable version	2.2.4
Published	2026-07-03 22:44:45 UTC
Install	`pip install --upgrade pycapnp`
Requires	`python >=3.9`
License	BSD-2-Clause
Advisories on latest version	none known
Last verified	2026-11-13 17:37:15 UTC
Sources	pypi.org

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Maintenance

Activity	active
Last stable release	2026-07-03 22:44:45 UTC · 132 days ago
Stable releases in the last 12 months	3
Published versions	50

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

Version history

Version	Published
`2.2.4`	2026-07-03 22:44:45 UTC
`2.2.3`	2026-05-31 00:19:04 UTC
`2.2.2`	2026-01-21 01:19:35 UTC
`2.2.1`	2025-10-23 14:37:05 UTC
`2.2.0`	2025-09-13 16:39:02 UTC
`2.1.0`	2025-09-05 03:48:02 UTC
`2.0.0`	2024-04-12 15:32:57 UTC
`1.3.0`	2023-01-27 18:30:24 UTC
`1.2.2`	2022-12-02 17:49:17 UTC
`1.2.1`	2022-09-13 20:59:49 UTC
`1.2.0`	2022-08-29 16:33:33 UTC
`1.1.1`	2022-05-24 06:10:35 UTC
`1.1.0`	2021-06-08 04:56:45 UTC
`1.0.0`	2020-11-20 21:00:38 UTC
`0.6.4`	2019-01-31 09:21:24 UTC
`0.6.3`	2018-01-14 19:54:41 UTC
`0.6.2`	2017-12-01 06:07:40 UTC
`0.6.1`	2017-07-28 03:10:07 UTC
`0.5.12`	2017-04-19 04:43:31 UTC
`0.5.11`	2017-04-11 03:37:11 UTC

Showing the 20 most recent of 46 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`	`2.2.3`
`python 3.9`	`2.2.4`
`python 3.10`	`2.2.4`
`python 3.11`	`2.2.4`
`python 3.12`	`2.2.4`
`python 3.13`	`2.2.4`

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Frequently asked questions

What is the latest version of pycapnp?

The latest stable version of pycapnp is 2.2.4, published on 2026-07-03. Verified by Vigia on 2026-11-13.

How do I install the latest version of pycapnp?

Run pip install --upgrade pycapnp. The latest stable version is 2.2.4 (verified 2026-11-13).

Is pycapnp deprecated?

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

Which Python version does pycapnp require?

pycapnp 2.2.4 declares this requirement: python >=3.9.

Does pycapnp 2.2.4 have known vulnerabilities?

No known advisories affect pycapnp 2.2.4 according to the data Vigia checks.

Is pycapnp still maintained?

pycapnp published 3 stable releases in the last 12 months; the most recent was 132 days ago. Activity: active.

Observed changes

No changes observed yet since Vigia started tracking this package.

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