Update deprecation guidance (#5127)

* Update deprecation guidance

* Update docs/software-and-images-guidelines.md

Co-authored-by: Mikhail Timofeev <48208649+miketimofeev@users.noreply.github.com>

Co-authored-by: Mikhail Timofeev <48208649+miketimofeev@users.noreply.github.com>
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Steve-Glass
2022-02-24 15:36:50 -05:00
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@@ -17,7 +17,7 @@ In general, these are the guidelines we consider when deciding what to pre-insta
## Software and images support policy
These are the guidelines we follow in software and images supporting routine:
- Tools and versions will typically be removed 6 months after they are deprecated or have reached end-of-life.
- We support at least 2 latest OS versions (LTS only for Ubuntu) and initiate deprecation process for the oldest one when image usage drops below 5%.
- We support at least 2 latest OS versions. We begin the deprecation process of the oldest image label once a new OS version has been released.
- The images generally contain the latest versions of packages installed except for Ubuntu LTS where we rely on the Canonical-provided repositories mostly.
- Popular tools can have several versions installed side-by-side with the following strategy: