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https://issues.apache.org/jira/browse/SLING-9172?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17052006#comment-17052006
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Konrad Windszus commented on SLING-9172:
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My concern is that this feature may break stuff once merged and activated.
Therefore we should also fix the downstream consumers before merging this!
> Allow Sling Installer to install and handle multiple versions of bundles
> instead of updating
> --------------------------------------------------------------------------------------------
>
> Key: SLING-9172
> URL: https://issues.apache.org/jira/browse/SLING-9172
> Project: Sling
> Issue Type: Improvement
> Components: Installer
> Affects Versions: Installer Core 3.10.2
> Reporter: Dominik Süß
> Priority: Major
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> Sling Installer currently always updates bundles when different versions of
> bundles get installed. Since Apache Felix does support multiple versions of
> bundles to exist in parallel it should be possible to change the behavior
> with via property to install and uninstall multiple versions in parallel
> instead of updating them.
> To achieve this two changes are required:
> a) DefaultTransformer should change the EntityID of bundles to include the
> version to make sure the state handling of Installer handles each version as
> own entity
> b) BundleTaskCreator must be adjusted to create install task over update task
> as the detection currently checks for the existence of BSN
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