Problem Statement
What considerations should you take into account when migrating a large Swift code-base to Swift 6 and how would you plan the migration?
Explanation
When migrating a large Swift code-base to Swift 6, you need to analyse compatibility, deprecation and the new language rules (especially around concurrency and strict data-race checking). /n/n You should start by auditing modules, enabling Swift 6 language mode in build settings, fixing warnings and migration issues incrementally. Use the compiler migration tools and migration flags, refactor unsafe concurrent code to conform to new actor and Sendable rules, adopt macros and new library features gradually. /n/n Planning should include testing (ensuring behaviour remains same), version control branches, dependency updates (packages and pods), and training for the team. Being ready for language evolution demonstrates maturity in interviewer discussions.
Practice Sets
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