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CHANGELOG.md

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master / unreleased

BREAKING CHANGES:

  • [CHANGE]
  • [FEATURE]
  • [ENHANCEMENT]
  • [BUGFIX]
  • [BUGFIX] Randomize ICMP Echo ID in probes to avoid SNAT session collisions that could drop replies for some clients.

0.28.0 / 2025-12-04

BREAKING CHANGES:

  • The --log.prober flag behavior has changed. The scrape probe logger is now an independent logger. Please review the README.md and adjust configurations as needed. #1461
  • Log leveling has been improved for several prober modules. Changes include logging errors at ERROR level instead of INFO, and adjusting many prober logs from INFO to DEBUG level. To see more detailed probe logs, set --log.prober=debug. #1461

Changes:

  • [CHANGE] Make default HTTP User-Agent compliant with RFC9110 (now Blackbox-Exporter/<version>) #1446
  • [CHANGE] Config is not reloaded if the file content didn't change when using all reload methods #1464
  • [FEATURE] Support HTTP/3 (QUIC) prober #1425
  • [FEATURE] Add support for configuring gRPC metadata in gRPC prober #956
  • [FEATURE] Implement byte matching in TCP query responses #1441
  • [FEATURE] Add a new type of probe using unix domain sockets #1480
  • [FEATURE] Support config reload automatically - feature flag config.enable-auto-reload, config.auto-reload-interval #1464
  • [BUGFIX] Fix retrieving probe logs by target name when probed by multiple modules #1257
  • [BUGFIX] Fix error handling in auto-reload config case #1478
  • [BUGFIX] Fix debug param log output work regardless of log level #1438

0.27.0 / 2025-06-26

  • [FEATURE] Support matching JSON body with CEL expressions #1255
  • [BUGFIX] Fix condition when local dns lookup should happen #1272
  • [BUGFIX] Stop scrape logger spam #1381

0.26.0 / 2025-02-26

  • [CHANGE] adopt log/slog, drop go-kit/log #1311
  • [FEATURE] Add metric to record tls ciphersuite negotiated during handshake #1203
  • [FEATURE] Add a way to export labels with content matched by the probe #1284
  • [FEATURE] Reports Certificate Serial number #1333
  • [ENHANCEMENT] Enable misspell linter #1248
  • [ENHANCEMENT] Fix incorrect parameters name in documentation #1126
  • [ENHANCEMENT] Add stale workflow to start sync with stale.yaml in prometheus #1170
  • [ENHANCEMENT] Update CONFIGURATION.md to clarify that valid_status_codes expects a list #1335
  • [ENHANCEMENT] Skip failing IPv6 tests in test CI Pipeline #1342
  • [ENHANCEMENT] Add RabbitMQ probe example #1349
  • [BUGFIX] Only register grpc TLS metrics on successful handshake #1338

0.25.0 / 2024-04-09

  • [FEATURE] Allow to get Probe logs by target #1063
  • [FEATURE] Log errors from probe #1091
  • [BUGFIX] Prevent logging confusing error message #1059
  • [BUGFIX] Explicit registration of internal exporter metrics 1060

0.24.0 / 2023-05-16

  • [CHANGE] Make Proxy Connect Headers consistent with Prometheus #1008
  • [FEATURE] Add hostname parameter for TCP probe #981
  • [FEATURE] Add support for HTTP request body as file #987

0.23.0 / 2022-12-02

  • [SECURITY] Update Exporter Toolkit (CVE-2022-46146) #979
  • [FEATURE] Support multiple Listen Addresses and systemd socket activation #979
  • [FEATURE] Add leaf certificate details in a new probe_ssl_last_chain_info metric. #943
  • [FEATURE] DNS: Add Add probe_dns_query_succeeded metric. #990

0.22.0 / 2022-08-02

  • [FEATURE] HTTP: Add skip_resolve_phase_with_proxy option. #944
  • [ENHANCEMENT] OAuth: Use Blackbox Exporter user agent when doing OAuth2 authenticated requests. #948
  • [ENHANCEMENT] Print usage and help to stdout instead of stderr. #928

0.21.1 / 2022-06-17

  • [BUGFIX] Fix a data race in HTTP probes. #929

0.21.0 / 2022-05-30

This Prometheus release is built with go1.18, which contains two noticeable changes related to TLS and HTTP:

  1. TLS 1.0 and 1.1 disabled by default client-side. Blackbox Exporter users can override this with the min_version parameter of tls_config.
  2. Certificates signed with the SHA-1 hash function are rejected. This doesn't apply to self-signed root certificates.
  • [BUGFIX] Prevent setting negative timeouts when using a small scrape interval. #869

0.20.0 / 2022-03-16

  • [FEATURE] Add support for grpc health check. #835
  • [FEATURE] Add hostname parameter. #823
  • [ENHANCEMENT] Add body_size_limit option to http module. #836
  • [ENHANCEMENT] Change default user agent. #557
  • [ENHANCEMENT] Add control of recursion desired flag for DNS probes. #859
  • [ENHANCEMENT] Delay init of http phase values. #865
  • [BUGFIX] Fix IP hash. #863

0.19.0 / 2021-05-10

In the HTTP probe, no_follow_redirects has been changed to follow_redirects. This release accepts both, with a precedence to the no_follow_redirects parameter. In the next release, no_follow_redirects will be removed.

  • [CHANGE] HTTP probe: no_follow_redirects has been renamed to follow_redirects. #784
  • [FEATURE] Add support for decompression of HTTP responses. #764
  • [FEATURE] Enable TLS and basic authentication. #730
  • [FEATURE] HTTP probe: experimental OAuth2 support. #784
  • [ENHANCEMENT] Add a health endpoint. #752
  • [ENHANCEMENT] Add a metric for unknown probes. #716
  • [ENHANCEMENT] Use preferred protocol first when resolving hostname. #728
  • [ENHANCEMENT] Validating the configuration tries to compile regexes. #729
  • [BUGFIX] HTTP probe: Fix error checking. #723
  • [BUGFIX] HTTP probe: Fix how the TLS phase is calculated. #758