I started using WordPress when I launched this blog back in 2011 and a couple of years later started writing plugins to add missing functionality. At the end of last year I switched over to ClassicPress, a hard-fork of WordPress.
As part of my transition to ClassicPress I created new versions of my plugins which added new functionality and improved security. I had already done some work to internationalize my plugins, but took the opportunity to improve this aspect as well.
Having done so, I thought that a series on how to internationalize and localize plugins might be a useful thing to write; while the series is targeted at plugins, as I am a plugin author, the principles are the same for themes.
This series will include a couple of sub-series as well as the core series; the index for all are below and will automatically grow as the posts go live.