A multi-year deal creates long-running branches. Code diverges. Merge commits pile up. Conflicts multiply. Debugging slows. Git rebase rewrites history so the branch looks like it was built in a straight line. The code becomes easier to review. Bisect runs faster. Release risk drops.
When using Git rebase for a multi-year deal, start by syncing with the target branch. Run git fetch and git rebase origin/main from the feature branch. Resolve conflicts one commit at a time instead of in bulk. Keep commits small and self-contained. Test after every conflict fix.
If the deal spans multiple repositories, rebase each separately. Align dependencies before final integration. Use git rebase --interactive to reorder or edit commits for clarity. Remove noise commits. Document every significant change in the commit message. This makes future audits faster.