For details, see the [release history](https://awkward-array.readthedocs.io/en/latest/_auto/changelog.html).
Built on pybind 2.4.3.
0.2.20
Dropped support for Python 3.4, added badges to README, and all the collaborators (a long list of PRs).
Also added trickarcher's `ak.to_arrow` and `ak.from_arrow` functions: PRs 224 and 263. These functions are known to work for Arrow 0.17+.
Built on pybind 2.4.3.
0.2.19
PRs 232 and 234 are bug-fixes, 229, 236, and 237 are documentation. Documentation is now fully stubbed out, though it could take a long time to fill it all in. I've put in notifications telling users that it will be written on demand: they can bump up certain articles in priority.
Awkward continues to be built on pybind 2.4.3.
0.2.18
PRs 227 and 228 built on pybind 2.4.3.
0.2.17
PRs 216, 217, 220, and fixed 222, built on pybind 2.4.3.