doc(readme): add "old state directories aren't deleted" to known issues
@@ -203,13 +203,15 @@ So Zebra's state should always be valid, unless your OS or disk hardware is corr
## Known Issues
There are a few bugs in Zebra that we're still working on fixing:
+- [Old state versions are not deleted](https://github.com/ZcashFoundation/zebra/issues/1213)
+ - When Zebra changes its state format, it does not delete the old state directory. You can delete old state directories if you need the space.
+- [No Windows support #3801](https://github.com/ZcashFoundation/zebra/issues/3801)
+ - We used to test with Windows Server 2019, but not anymore; see issue for details
- [In rare cases, Zebra panics on shutdown #1678](https://github.com/ZcashFoundation/zebra/issues/1678)
- See [#2209](https://github.com/ZcashFoundation/zebra/issues/2209) for an example.
- These panics can be ignored, unless they happen frequently.
- [Interrupt handler does not work when a blocking task is running #1351](https://github.com/ZcashFoundation/zebra/issues/1351)
- Zebra should eventually exit once the task finishes. Or you can forcibly terminate the process.
-- [No Windows support #3801](https://github.com/ZcashFoundation/zebra/issues/3801)
- - We used to test with Windows Server 2019, but not anymore; see issue for details
## Future Work
