Apache Subversion公式のofficial project documentation ('the Subversion Book') — explicitly linked from and called 'the official Subversion documentation' by subversion.apache.org's own docs index page, though hosted on the community book site svnbook.red-bean.com（https://svnbook.red-bean.com/en/1.7/svn.advanced.locking.html）は、Apache Subversionの差別化要因に関する一次情報である。The existing P-06 recommendation cites Subversion's suitability for large binary assets in general terms (access control, track record) but never explains the concrete mechanism (locking / lock-modify-unlock) that actually solves the binary-merge-conflict problem, so this is a genuinely new, more technical angle on the same underlying capability, and also directly confirms the official 'File locking' feature bullet listed on subversion.apache.org/features.html.具体的には「Apache Subversion provides an optional exclusive file-locking (lock-modify-unlock) mechanism specifically to prevent wasted work on unmergeable file types such as binary images: a user can claim an exclusive lock on a file before editing it, guaranteeing their eventual commit will succeed instead of being blocked by an unresolvable merge conflict.」といった記載がある。ただし、この差別化要因の記述は当該Sourceの時点の位置づけであり、競合状況の変化を反映しない可能性があります。 This documentation dates from the Subversion 1.7-era edition of the book; while file locking remains a supported core feature in current Subversion releases, this specific page was not re-verified against the very latest version's release notes, so exact UI/command details could have minor updates since this edition was written.2026年08月23日に同Sourceを取得し、この内容を確認した。検証待ちApache Subversion差別化要因に関する公開情報