The next hurdle is to access your files. If you have used SMath extensively in the past year, then all of those files will be saved in a version later than v99.7822. Smath will probably refuse to open them. This is because all SMath files have XML text-format headers that identify the version.

Fortunately, the differences between recent versions are bug fixes and the licensing module, not wholesale functionality.

I found that we can easily force a roll-back on any SMath *.SM file that’s been saved in a later version. The file headers are readable XML text. Those of you who are ready to roll it back and know what *.SM files you need to fix, can do so with the process below:

Open the *.SM file in Notepad or your favourite text editor.
Replace the version ID’s with the earlier versions.
These are all in the header, and no fields in the body of the file should be changed.

Replace the version with this:

This allows SMath to open the file.

We aren't out of the woods yet. While you have the *.SM file open, you should also pay attention to the dependencies. These are the little modules that you install to improve the functionality of SMath.
There is one more version ID line within the dependencies. Replace that but leave the "guid=" hash alone.
For now I don't recommend changing the other modules. Besides, I think you can't. The Extension Manager inside SMath doesn't seem to let me roll-back versions of plugins. For now it doesn't seem to matter, but keep this information in the back of your mind, because it might matter in the future.



I hope this is helpful. Let me know of any difficulties you have, but I can't promise to know the answer.

Sorry, this statement was not true:

Quote:

Fortunately, the differences between recent versions are bug fixes and the licensing module, not wholesale functionality.

Here are some improvements to SMath in the versions since v99.7822 that will probably break if you roll back a later version *.SM file that has these functions/operations in your worksheets:

• Autodetection of units input implemented in TextRegion.
• Electron-volt (k, M, G, T) unit added;
• Approximately Equal operator implemented (Options dialog extended with an appropriate setting;
• button added to the Boolean toolbox);
• Defined Integral supports units now;
• Approximately not equal operator implemented.

If the product licensing is successful Andrey, then there's reason to expect SMath to improve drastically over the next couple of years. If that happens, then those of us dinosaurs who have rolled back and stay at v99.7822 will be missing out. At some point, the features we are missing may cause some of us to question how long we will refuse to upgrade.

(Or the war could end...)

Thanks very much... printed this thread...

-----*****-----
So strange to see the singularity approaching while the entire planet is rapidly turning into a hellscape. -John Coates

-Dik

Thanks! Another problem I don't think will be fixed on v99.7822 is plugin installation, it just doesn't work anymore. The only solution seems to be if you never upgraded, or if someone were to create a portable version with plugins preinstalled.

You can also copy between versions if everything else fails, but then you'll need a portable version of V1+ to copy from.

Below is a list of the files in my SMAth plugins backup folder.
Note the file dates of these plugins, and that 99.7822 was released in May 2021 and 1.0+ was released in June 2022.



I take backward compatibility rather seriously, it seems.