How to migrate from Mark Jaquith’s Subscribe to Comments plugin to Gurken’s new version?

Yes, it’s possible (and quite easy) to migrate from Mark Jaquith’s Subscribe to Comments plugin to Gurken Subscribe to Comments plugin.

The steps:

  1. Install Gurken Subscribe to Comments (using either FTP or WordPress’s plugin manager)
  2. Don’t activate Gurken StC yet. First deactivate Mark Jaquith’s version.
    • Activating the new plugin too soon will fail because both plugins define functions with the same names.
  3. Activate Gurken StC.
  4. Go in via FTP and delete the /wp-content/plugins/subscribe-to-comments/ folder.
    • Don’t use WordPress to delete Mark’s version! It might erase your subscription data from the database!

(Question and answer inspired by this WordPress Support thread.)

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