Often the same item needs to be updated by different users at the same time in the same project. CA Harvest SCM supports concurrent development by letting users make changes on branches off the project trunk. Branches are independent version chains that extend from trunk versions; a new version on the trunk does not affect branches. The check-out process concurrent update mode creates a reserved version on a package branch for each item. Branch versions can be checked out for update or concurrent update; both modes of check-out create a reserved version on the same branch.
Multiple branches can be created off the same trunk version and any trunk version, not only the latest, can be checked out to a branch. Using either the update or concurrent update mode of check-out, branch versions can be checked out and modified. Both modes create a reserved branch version that is replaced when the file is checked in. The package specified for the check-out must be the same as the package that created the branch.
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