The whole thing started with this topic. Due to lack of possibilities, I wrote my own update mechanism which noes not rely on any advanced stuff but still should be versatile enough.   Since the initial version TAEUpdater got some improvements and things are looking great. Some more stuff was implemented like hash-based verification, messages, E-tag caching, separate internal, development and production channels, ability to downgrade to a previous version, etc. I'm running it in my main application for a while and it seems to do the job correctly.
Since not all of us might update from an unauthenticated web server, now 3 different file providers are shipped: HTTP, flatfile and custom. HTTP uses Delphi's TNetHTTPClient, flatfile reads the files from a local disk and custom has all necessary events exposed via events. I also got rid of some personal dependencies (like compressing the update file or using System.Zip2) and now everything is handed to the user for the solution to be more... generic. I still use my own version discovery and comparison method to be able to determine which published one is "newer" but that is going to be my next step. As a workaround, you can call .LoadUpdateFile, check the new version in each ActualProduct.Files and call .Update manually.   What it needs: - An update file containing the product, all its files and versions. You can build this with TAEUpdateFile.SaveToStream in AE.Updater.UpdateFile.pas - Update packages, which can be zipped or encrypted, on FTP, HTTP, custom protocol - doesn't matter as events should be in place for performing all these actions   Plans for the future: - Getting rid of more dependencies, maybe it'll become a standalone updater package with no extras - By accomplishing the above the code will get closer and closer to be truly cross-platform (atm it's WIndows only) - Get rid of modern stuff (like generics) and implement proper versioning conditionals so the package can be compiled and installed on anything other than D11.2 - Really, really basic documentation on how to use...   Disclaimer: further changes are on their way. I'll possibly add / remove events / splitting the component in multiple subcomponents which might make existing .DFMs failing to be streamed. Also, publish your new versions on the Internal channel if I might break the core functionality 😞   All words as one - I just wanted to give the existing Delphi community a chance to implement auto-updating feature to their applications without having to pay for the component or the backend. Feel free to check it out. And suggest ways of improvement of course 🙂