Hi, I was wondering if there is any information about when a possible patch release will be done for Kotlin Serialization? We're currently facing this bug which prevents us from updating to Kotlin 1.8.20/21, which is a major blocker for us. I see that one of the devs already implemented a fix for it (very quickly!), but I have no idea when that will be released.

FYI: I have changed the issue title to

NullPointerException when obtaining a serializer of a sealed base class with a self-referencing property

Since the fix is in the compiler plugin, it will require a Kotlin release. This usually takes more time than just releasing a library update. (I'm just the issue reporter, I don't have information on the current release schedule.)

Isn't the compiler plugin part of the kotlin serialization dependency?

No, it's an integral part of the Kotlin compiler. Like several other compiler plugins (

allopen

,

atomicfu

, ...).

Ah right, then that explains why it broke with the Kotlin update. That's too bad, I guess we'll have to wait for Kotlin 1.9

Good news: The fix is present in today's 1.9.0-Beta release, though not mentioned in the Changelog. I have created a tracking issue for that (KT-58841).

Nice!