Project Branch API v2 Response

Attributes	Type	Description
nextVersionName	string	The version name that the next Build of this project branch will receive
versionNumber	long	The version of the project branch
attribute1-3	String or null	Different SCM Types have different attributes on their branches
branchName	string	The name of the branch
lastDiscoveredOn	Timestamp or null	for partial deploy projects only The time that the project branch was last discovered
projectBranchId	long	The unique identifier of the project branch
mainBranchFlag	boolean	true if this branch is the main branch for the project. Not related to the name of the SCM branch
nextSequenceNumber	long	the next sequence that will be assigned to the next build
versionSyntax	string	The groovy script that makes the nextVersionName from the next SequenceNumber
description	string or null	Describes the project branch
isActive	boolean	true if the project branch is active
projectId	long	the ID of the project the branch is associated to