v0.5

• Prometheus endpoint with metrics:
  • Number of entries in blacklist/whitelist cache, partitioned by group
  • Counter for internal errors
  • Number of total queries, partitioned by client and DNS request type (A, AAAA, PTR, etc)
  • Request duration histogram, partitioned by response type (Blocked, cached, etc)
  • Number of responses, partitioned by response type (Blocked, cached, etc), DNS response code, and reason
• small improvements

v0.4

• DNS over HTTPS (DoH) support for upstreams
• Blocking response entries
  • deep CNAME inspection
  • block IPs (A and AAAA)
• Build multi arch docker images with buildx
• Fixed healthcheck for arm image

v0.3.5

• changed to unblocking buffered channel to prevent gorutine leaking
• print additional runtime information
• additional configuration parameters for caching
• Healthcheck in docker container

v0.3

• statistics collection and aggregation
• show stats on SIGUSR2
• configuration for list update interval
• Improved response caching of non-existent domains (NXERROR)

v0.2.1

• Escape special characters in file names (query log)
• Additional tests to improve code quality

first public release

v0.2.0

initial commit