You can find the full list of supported languages, SSH/FTP capabilities, and editor features on the official Textastic website .
Based on the naming convention in your query, this looks like a file hosted on third-party distribution sites rather than the official App Store .
Could you clarify you are trying to use or find within this version? Knowing your goal (e.g., setting up an FTP connection, using a specific syntax theme, or troubleshooting an installation) will help me give you a better answer.
For help with existing features or to request new ones, the best place is the Textastic Support & Feedback forum . The developer is very active there.
If you are looking for a specific within Textastic or need help with the app, here is how you can proceed: