Published on June 10, 2026, cvs-fast-export 2.1 fixes an “invalid delta” error when processing binary blobs. The tool converts RCS or CVS histories into a fast-import stream.
cvs-fast-export converts RCS or CVS repository histories into a fast-import stream. According to the June 10, 2026 announcement, version 2.1 fixes an “invalid delta” error that occurred while processing binary blobs. Engineers migrating or inspecting legacy CVS histories can use this version to process the affected blobs.
To check the scope of the fix, consult the original announcement and the project’s release notes, verifying the version and error description. If you use AI to study or apply this information, do not submit code histories or internal data without authorization; apply your organization’s privacy policy before processing.