GitHub migrates 99.99999% of code repository copies to Azure

GitHub's engineering blog says it has migrated 99.99999% of repository copies to Azure. The remainder will be migrated via per-reference quorums; object storage also lets reads scale independently rather than being tied to the write path. For developers and ops teams relying on GitHub repository hosting, the key change is how reads scale: reads are served by object storage and can be scaled separately. Teams using GitHub as a code host and CI trigger source should watch consistency under the per-reference quorum mechanism while the remaining repositories migrate. The original post did not disclose the migration timeline, specific performance figures, or the size of the remaining repositories.