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nvchecker (short for new version checker) is for checking if a new version of some software has been released.

This is the version 2.0 branch that is in beta. Things may still change without backward-compatibility.

For the old version 1.x, please switch to the v1.x branch.

Build Status PyPI version Documentation Status

Packaging status


  • Python 3.7+
  • Python library: structlog, toml, appdirs
  • One of these Python library combinations (ordered by preference):
    • tornado + pycurl
    • aiohttp
    • httpx with http2 support (experimental; only latest version is supported)
    • tornado
  • All commands used in your software version configuration files

Install and Run

To install:

pip3 install nvchecker

To use the latest code, you can also clone this repository and run:

python3 install

To see available options:

nvchecker --help

Run with one or more software version files:

nvchecker -c config_file

You normally will like to specify some "version record files"; see below.


For detailed documentation, see

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