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v2.0.0-rc10

0xNyk/council-of-high-intelligencev2.0.0-rc10Dec 22, 2025by qdm12

AI Summary

This release focuses on performance improvements like connection pooling for DNS over TLS, introduces new configuration options for health checks and rebinding protection, and fixes several logging and error handling issues.

Key Highlights

  • DNS over TLS now uses a pool of connections to re-use TCP connections when possible
  • New HEALTH_SERVER_ADDRESS option (defaulting to 127.0.0.1:9999)
  • REBINDING_PROTECTION_EXEMPT_HOSTNAMES configuration option
  • Fix for 'site' and 'network' TLDs being treated as public instead of local

Breaking Changes

  • pkg/nameserver: GetDNSServers does not return localhost IPs if no nameserver is found, returns an eventual error, and returns []netip.Addr instead of []netip.AddrPort

New Features

  • Connection pooling for DNS over TLS
  • Health server address configuration
  • Logging of blocked elements with a reason in the filter middleware
  • Debug level logging for common I/O timeouts

Full Release Notes

## Features

- DNS over TLS now uses a pool of connections to re-use TCP connections when possible (#150)
- `HEALTH_SERVER_ADDRESS` option, defaulting to `127.0.0.1:9999`
- by default log i/o timeout errors are logged at debug level because these are fairly common
- `REBINDING_PROTECTION_EXEMPT_HOSTNAMES` option
- `pkg/middlewares/filter`: log blocked elements with a reason

## Fixes

- `internal/local`: "site" and "network" TLDs are public, not local
- `pkg/middlewares/localdns`:
  - do not log request twice on errors
  - do not debug log NXDOMAIN coded responses since these happen often especially with search domains
- `internal/support/ipv6`: handle Windows error message
- Grafana dashboard plain DNS section updated

## Go API breaking changes

- `pkg/nameserver`: `GetDNSServers`
  - does not return localhost IPs if no nameserver is found 
  - returns an eventual error
  - returns []netip.Addr instead of []netip.AddrPort since it can only be an ip address without port

## Maintenance

- Grafana JSON dashboard upgraded to newer schema version 3
- Fix documentation URLs and CI links check
- bump markdownlint from v11 to v21