igraph 2.1.4.9032

## vendor

- Update vendored sources to igraph/igraph@0a22a85 (igraph#1791).

igraph 2.1.4.9031

## vendor

- Update vendored sources to igraph/igraph@e5de49c (igraph#1789).

- Update vendored sources to igraph/igraph@7d63419 (igraph#1788).

- Update vendored sources to igraph/igraph@bc19dd7 (igraph#1787).

igraph 2.1.4.9030

## Documentation

- `make_graph()` now supports `Groetzsch` as an alias of `Grotzsch`.
  This change was implemented in the C core.

## vendor

- Update vendored sources to igraph/igraph@ead8aea (igraph#1785).

igraph 2.1.4.9029

## vendor

- Update vendored sources to igraph/igraph@65cf9a2 (igraph#1783).

igraph 2.1.4.9028

## vendor

- Update vendored sources to igraph/igraph@fc6860b (igraph#1776).

- Update vendored sources to igraph/igraph@dcdad62 (igraph#1775).

- Update vendored sources to igraph/igraph@1636677 (igraph#1774).

- Update vendored sources to igraph/igraph@6d85a48 (igraph#1773).

- Update vendored sources to igraph/igraph@fe6bdb7 (igraph#1772).

- Update vendored sources to igraph/igraph@e5e5374 (igraph/igraph#2473, igraph#1771).

igraph 2.1.4.9027

## vendor

- Update vendored sources to igraph/igraph@9107701 (igraph/igraph#2473, igraph#1769).

- Update vendored sources to igraph/igraph@10d4fc7 (igraph#1768).

- Update vendored sources to igraph/igraph@92ec35b (igraph#1767).

igraph 2.1.4.9026

## vendor

- Update vendored sources to igraph/igraph@dd20820 (igraph#1765).

- Update vendored sources to igraph/igraph@64e4649 (igraph#1764).

- Update vendored sources to igraph/igraph@aec39d0 (igraph#1763).

igraph 2.1.4.9025

## Features

- Expose `find_cycle()` (igraph#1471, igraph#1571).

- Split `sample_bipartite()` into two functions for the G(n, m) a… (igraph#630, igraph#1692).

## Chore

- Results from revdepcheck.

- Update generated documentation.

- Install build dependencies.

## Documentation

- Update decription of `order` parameter of `ego()` and related functions (igraph#1746).

## Testing

- Snapshot updates for rcc-smoke (null) (igraph#1738).

igraph 2.1.4.9024

## Bug fixes

- Integer vectors are validated before transferring them to the C library (igraph#1434, igraph#1582).

igraph 2.1.4.9023

## vendor

- Update vendored sources to igraph/igraph@b42d010 (igraph#1758).

- Update vendored sources to igraph/igraph@627f71a (igraph/igraph#2710, igraph#1757).

- Update vendored sources to igraph/igraph@a7d2286 (igraph#1756).