The American Association of Law Libraries' Online Legal Information Resources notes the official status of each state's primary law publications found on government websites, including statutes.
The National Conference of State Legislatures published a list of official state code publications, and their available formats, based upon a 2011 survey of Official Version of the State Statutes/Code.
For current state constitution developments: State Court Reports.
For provision-by-provision commentary on the state's constitution with analysis of the state's current constitution and its evolution: Oxford Commentaries on the State Constitutions of the United States. Editions held by the Law Library will be found in the catalog, including those published under a former series title.