--html      - Write report.html
--json      - Write report.json
--filename  - Filename (& directory) where the report should be saved (needs --html or --json)
--from      - Begin at git-ref
--to        - Stop at git-ref
--repo      - change directory

CLI table output

bin/php vendor/bin/composer-diff

Writes report.html

php vendor/bin/composer-diff --html

Writes report.json

php vendor/bin/composer-diff --json

Compare Tags

php vendor/bin/composer-diff --from=v12.4.2 --to=v12.4.3 --html

Compare Tag to current

php vendor/bin/composer-diff --from=1.0.0 --html

Compare Branch to Branch

php vendor/bin/composer-diff --from=develop --to=main --html

php vendor/bin/composer-diff --filename=report/report.html