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open book Versioning

How Nuclos version numbers are composed – scheme, examples and the 2022 change.

REFERENCE EVERYONE UPDATED: JUL 2026 APPLIES TO NUCLOS 4.2026.X

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Since 2022 the Nuclos version contains the release year. A version is structured as follows:

MAJOR.YEAR.COUNTER[.BUGFIX]

PartMeaningExample
MAJORMajor version (rare)4
YEARRelease year2026
COUNTERSequential, reset to 1 each year31
BUGFIXOnly for bugfix releases1

Examples

Release typeVersionGit branch/tag
Minor release4.2026.14.2026.1
Bugfix release4.2026.1.14.2026.1

Change in 2022

Changes compared to the old scheme (until 2021, e.g. 4.53.0): the year is also part of the minor segment, the counter restarts at 1 every year and the bugfix segment only appears for bugfix releases.

Related pages

gear Version upgrade notes


Upgrade notes per version.

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gear Backup


Back up before updating.

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