The Hidden Costs of Supporting Multiple Versions in Production

TL;DR

Supporting multiple versions in production drains engineering resources through increased context-switching, merge conflicts, and bug risks. Back-porting fixes and maintaining separate branches for each customer make things worse, leading to instability and technical debt. To avoid these problems, teams should simplify and standardise their branching strategy.

6 February 2025
Written by Martin Hinshelwood
1 minute read
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Supporting multiple versions in production is a hidden tax on engineering teams.

Every version adds:

  • More context-switching
  • More merge conflicts
  • More chances for bugs to slip through

Reverse integration, back-porting fixes to older versions, is even worse. It creates instability, increases the risk of unintended regressions, and wastes engineering time.

And then there’s branch by customer, the absolute worst-case scenario. Maintaining separate branches for each client is a scaling disaster, guaranteeing technical debt and a painful development experience.

If a team is struggling to keep track of where changes are applied, it’s already a sign that the branching strategy is broken. Standardise, simplify, and move forward, not backward.

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