do you have an example of error you getting?

And feel free to post you issue in the repo

I see that the best solution would be if InterSystems would make this package available as an open source, with an option to upgrade any existing instance with the open-source version by using IPM for instance

In this case, any team that keeps using ZEN may provide their thoughts on how the modern ZEN should look in the form of PullRequests. There would be a place to post bugs and feature requests, which some community members may help to solve for everyone.

ObjectScript does not support undescore sign in the names, and requires using double quotes to override this

$$$ThrowOnError(mymodule."validate_header"())

instead of using nc, which will not be able to send a full header, you could use my tool iscctl, which will connect, only if the server is available, and it will be logged in correctly. let me know if you would need some updates in the tool

That's not a schema, this part is database
and IRIS does not support switching databases or schemas during connection

With these changes, to have just latest, latest-preview, it's hard to get how old the the image on InterSystems Containers Registry

It would be nice to see the date of the image is uploaded and have somewhere sorting by date

GZIP format itself does not support files, it's just a compress, usually it can be used with TAR format, which helps to merge multiple files, which can be compressed by GZIP

Look at my project isc-tar, which implements an internal way of creating cross-platform archives without calling external archivers.

https://openexchange.intersystems.com/package/isc-tar

CloudSQL for quite some time switched to using only SSL encrypted connection, can you expand your article on how to use SSL Certificate to be able to connect?

For me it took a few days to solve a bit different issue, but only with InterSystems, that had to fix something on their site. I’d recommend contacting them through iservice, probably they can help 

with IKO, tls for wegateway does not work at all, only loginSecret works

I expected that just define webgateway even without tls, will work, but still no

So, you still store JSON as a text, and not some binary form, then all SQL queries will do JSON parse If I need to extract some property from it, and if I have millions of records, I have to forget about this feature?

The best and most correct solution would be to use parameters in SQL and pass a value as a parameter

INSERT INTO MyText
    (text)
VALUES
    (?)

While you have Oracle somewhere behind, Oracle should support parameters as well, but I don't know how it will work in this case

The increase may appear due to passing this query to the next database, and it escaped again. Passing as parameters may solve this issue.

But still even without this apostrophe the string is too long