Number — Illustrator 2021 Version

The exact version number for is v25.0 (initial release). The full version string is typically 25.0.0 (or later updates like 25.1, 25.2, 25.3, 25.4, etc., depending on the patch).

Note: Some people also refer to the release as part of Adobe’s “year/tag” naming convention, which shifted from version numbers (CC 2019 = v23, 2020 = v24, 2021 = v25, 2022 = v26, etc.). illustrator 2021 version number