A development archive is a preserved collection of material from a software project. It may include source code, design documents, technical notes, or other records. The term describes the collection, not necessarily its completeness or official status.
In cybersecurity, archives can help teams investigate how software was built, understand legacy systems, and preserve records for future analysis. They may also contain sensitive data, credentials, or outdated code, so access controls and careful handling matter. When archives are recovered from personal backups, documenting their provenance and checking integrity helps establish what they contain and how reliable the records are.