在「Let's Encrypt’s subscriber agreement changes on Sept 21 (letsencrypt.org)」這邊看到的，Let's Encrypt 有提供 diff 的內容，在「LE-SA-v1.2-v1.3-diff.docx」這邊，你也可以用 Google Docs Viewer 看：「LE-SA-v1.2-v1.3-diff.docx」。
看起來主要是用語上的改變 (可能是律師的建議？)，除了 revoke 的章節外看起來沒什麼大變化。而 revoke 的章節部份增加了這兩段文字：
You warrant to ISRG and the public-at-large, and You agree, that before providing a reason for revoking Your Certificate, you will have reviewed the revocation guidelines found in the “Revoking Certificates” section of the Let’s Encrypt documentation available at https://letsencrypt.org/docs/ , and that you will provide Your corresponding revocation reason code with awareness of such guidelines.
You acknowledge and accept that ISRG may modify any revocation reason code provided by You if ISRG determines, in its sole discretion, that a different reason code for revocation is more appropriate or is required by industry standards.
不確定自動化的 client 需不需要重新再 accept 一次？
