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It is not clear if we want to remove seen flags because it will break some flows with using delta chat as a reader for classic emails, so the issue...

Another reason to send MDNs to self is that it will trigger push notification so your other devices will know that you have read the message and dismiss the notification:...

We cannot use system certificate store by default because on Android this certificate store is often outdated and may not have Let's Encrypt root. We can probably make another third...

I am still not sure we want to use platform certificates by default even as a fallback. Using system certificate store will not interact nicely with "add second device" feature:...

This is literally what the message says inside when I look in Thunderbird: Same for "You changed the group image.". So it is not rewritten by the core for some...

`acpeerstates` table is not used anymore in 2.x releases. We can drop it in a migration. Keys, even unused ones, are now stored in `public_keys` table. It is likely safe...

While we are dropping old tables, can as well drop `jobs`, `old_keypairs` and `sending_domains` table.

> I didn't re-format/indent the code to make it easier to review what lines where actually changed Can also be reformatted, there is this option for review:

We have `try_many_times` workaround that we tried to remove at some point and then restored in https://github.com/deltachat/deltachat-core-rust/pull/4873 again because Windows CI failed due to the database not being closed. Now...

I made a fix for the core: https://github.com/deltachat/deltachat-core-rust/pull/5814 Probably best thing to do now is to update the core to include this fix.