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The format of the release numbering is as follows:
yyyy.rd.pp
yyyy= the year the development started
rd= the release number 10 to 60, 6 releases per year; single digits are used for development releases. x1 - x9 11,12,...19
pp= Patch number, Number one is the main release, and two or higher are patches containing corrections.
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2019.10, 2019.20 ... 2019.60
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Early Access Releases:
2019.1111, 2019.21 21 ... 2019.61, 2019.62 62
Patch Releases:
2019.10.2.1 .2 (Patch 1 for Release 2019.10.), 2019.20.16.6 1 (Patch 5 for release 2019.20)
Early Access Release:
2019.11.0.1 (Development Release)
Release Planning
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Match hands-on -keyboard time to the total time estimated by developers for the issues in a release.
Finalize the release scope to align available resources and estimations based on issues priorities
Define the list of issues to be delivered within the release
Assign issues that are not getting into the current release to one of the upcoming releases
Release life span
The life span is six releases before the latest product version. During its life span, patches are available, fixing various critical errors. If the life span expires, the version is no longer maintained.