v5.7.1

5.7.1 / 2025.08.20

• [IMPROVEMENT] Suppress external env if origin detection is configured off. #316 by @StephenWakely

5.7.0 / 2025.07.11

• [FEATURE] Added origin detection via CGroups or DD_EXTERNAL_ENV. Cardinality can be specified
  with a cardinality parameter. [#310] by @StephenWakely

v5.6.6

5.6.6 / 2025.03.19

• [OTHER] Rescue ThreadError when creating SenderThread. #306 by @mperham

v5.6.5

5.6.5 / 2025.02.03

• [OTHER] Include changes meant for dogstatsd-ruby v5.6.4 which should be skipped. #303 by @jasonpenny

v5.6.4

5.6.4 / 2024.12.19

• [BUGFIX] Delete commas when escaping tag content #301 by @mattwd7

v5.6.3

• [BUGFIX] Fixes invalid Symbol#name usage for Ruby versions < 3.0 #297 by @rayz

v5.6.2

• [OTHER] Ruby versions 3.2 and 3.3 are now supported. [#291] by @gdubicki
• [IMPROVEMENT] Reduce memory allocations during tag and metric serialization. [#294] by @schlubbi
• [IMPROVEMENT] Avoid allocations when using delay_serialization. [#295] by @jhawthorn

v5.6.1

5.6.1 / 2023.09.07

• [IMPROVEMENT] Add support for IPv6 UDP connection. #280 by @kazwolfe

v5.6.0

5.6.0 / 2023.07.10

• [FEATURE] Add the delay_serialization option, allowing users to delay expensive serialization until a more convenient time, such as after an HTTP request has completed. In multi-threaded mode, it causes serialization to happen inside the sender thread. #271 by @pudiva and @BlakeWilliams

• [FEATURE] Also, support the sender_queue_size in single_thread mode, so that it can benefit from the new delay_serialization option. Messages are now queued (possibly unserialized) until sender_queue_size is reached or #flush is called. It may be set to Float::INFINITY, so that messages are indefinitely queued until an explicit #flush. #271 by @pudiva and @BlakeWilliams

• [IMPROVEMENT] Add support of DD_DOGSTATSD_URL for configuration through environment variable. Valid formats are: udp://some-host, udp://some-host:port and unix:///path/to/unix.sock. DD_DOGSTATSD_URL has priority on other environment vars (DD_AGENT_HOST, DD_DOGSTATSD_PORT and DD_DOGSTATSD_SOCKET) but does not throw an error if others are set, values are overridden instead. #278 by @remeh

• [BUGFIX] Fix NoMethodError when Datadog::Statsd is initialized without telemetry. #272 by @matthewshafer

v5.5.0

5.5.0 / 2022.06.01

• [FEATURE] Add distribution_time method to facilitate measuring timing of a yielded block. #248 by @jordan-brough

• [BUGFIX] Stop flush timer before closing the queue #257 by @abicky

• [IMPROVEMENT] Various warnings removed #258 by @abicky

• [OTHER] Remove unused rack dependency #260 by @remeh