V21.2¶
| Node | Protocol | Database | Release Date | Release Notes | GitHub Links |
|---|---|---|---|---|---|
| 21.2 | 18 | 18 | 2020-09-03 | V21.2 | Release - Milestone - Changelog |
Known Issue V19+: 'Too many open files'
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Issue: The following error, or a similar one, can be seen when attempting to run a full node on some versions of macOS, Linux and possibly other operating systems. This is most common when using the built-in Qt wallet or other GUI-based wallets: "Exception while running wallet: open: Too many open files" or other errors containing "Too many open files". This is due to some systems having a very low default file descriptor limit and V19.0+ uses more of them after the move to TCP.
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Solution: Increasing the file limits is needed to resolve this. See this known issue for more details on resolution.
No special upgrade considerations
V21.2 is a service release which doesn't require any special upgrade considerations when upgrading from V21.0.