# Release History: opentelemetry-instrumentation-rails

## v0.42.0 / 2026-04-28

- BREAKING CHANGE: Min Rails 7.1 (enforced this time) (#2283)
- ADDED: Min Rails 7.1 (enforced this time) (#2283)

## v0.41.0 / 2026-04-14

- BREAKING CHANGE: Min Ruby Version 3.3 (#2125)
- ADDED: Min Ruby Version 3.3 (#2125)
- ADDED: Add release tag into source code url of gem metadata (#1984)
- CHANGED: Update transitive dependencies for Rails instrumentation sub-gems to new versions

## v0.40.0 / 2026-03-17

- BREAKING CHANGE: Default to stable HTTP semantic conventions (#2051)
- ADDED: Default to stable HTTP semantic conventions (#2051)

## v0.39.1 / 2025-10-22

- FIXED: Update opentelemetry-instrumentation-base dependency

## v0.39.0 / 2025-10-21

- BREAKING CHANGE: Min Ruby Version 3.2 and Rails 7.1
- ADDED: Min Ruby Version 3.2 and Rails 7.1

## v0.38.0 / 2025-09-30

- ADDED: Bump minimum API Version to 1.7

## v0.37.0 / 2025-08-19

ADDED: Add action_pack `OTEL_SEMCONV_STABILITY_OPT_IN` environment variable compatibility for Rack integration [#1594](https://github.com/open-telemetry/opentelemetry-ruby-contrib/pull/1594)

## v0.36.0 / 2025-02-04

- ADDED: Add active_storage instrumentation to `rails`
- ADDED: Strip Rails `(.:format)` suffix from `http.route` (action_pack)

## v0.35.1 / 2025-01-28

- DOCS: Required version in Rails README from 0.24 to 0.34.

## v0.35.0 / 2025-01-16

- BREAKING CHANGE: Drop Support for EoL Rails 6.1
- BREAKING CHANGE: Set minimum supported version to Ruby 3.1
- ADDED: Drop Support for EoL Rails 6.1
- ADDED: Set minimum supported version to Ruby 3.1

## v0.34.1 / 2025-01-14

- FIXED: Add Concurrent Ruby dependency to Rails

## v0.34.0 / 2024-12-19

- ADDED: Upgrade ActiveSupport Instrumentation 0.7.0

## v0.33.1 / 2024-11-26

- (No significant changes)

## v0.33.0 / 2024-11-19

- ADDED: Use Semconv Naming For ActionPack

## v0.32.0 / 2024-10-22

- BREAKING CHANGE: Rename Active Record find_by_sql spans to query
- FIXED: Emit Active Record query spans for Rails 7.0+
- ADDED: Subscribe to process.action_mailer notifications

## v0.31.2 / 2024-08-15

- FIXED: Rails instrumentation should load ActiveJob instrumentation

## v0.31.1 / 2024-07-23

- DOCS: Add cspell to CI

## v0.31.0 / 2024-07-02

- DOCS: Fix CHANGELOGs to reflect a past breaking change
- CHANGED: Update ActiveSupport Instrumentation

## v0.30.2 / 2024-06-04

- FIXED: Add action_mailer to rails and all

## v0.30.1 / 2024-04-30

- FIXED: Bundler conflict warnings

## v0.30.0 / 2024-01-09

- BREAKING CHANGE: Use ActiveSupport instead of patches #703

## v0.29.1 / 2023-11-23

- CHANGED: Applied Rubocop Performance Recommendations [#727](https://github.com/open-telemetry/opentelemetry-ruby-contrib/pull/727)

## v0.29.0 / 2023-11-22

- BREAKING CHANGE: Drop Rails 6.0 EOL
- ADDED: Drop Rails 6.0 EOL

## v0.28.1 / 2023-10-16

- FIXED: Add Rails 7.1 compatibility

## v0.28.0 / 2023-09-07

- BREAKING CHANGE: Align messaging instrumentation operation names [#648](https://github.com/open-telemetry/opentelemetry-ruby-contrib/pull/648)

## v0.27.1 / 2023-06-05

- FIXED: Use latest bug fix version for all dependencies

## v0.27.0 / 2023-06-05

- FIXED: Base config options
- FIXED: Upgrade ActionPack and ActionView min versions

## v0.26.0 / 2023-04-17

- BREAKING CHANGE: Drop support for EoL Ruby 2.7
- ADDED: Drop support for EoL Ruby 2.7

## v0.25.0 / 2023-02-08

- BREAKING CHANGE: Update Instrumentations GraphQL, HttpClient, Rails [#303](https://github.com/open-telemetry/opentelemetry-ruby-contrib/pull/303)
- BREAKING CHANGE: Drop Rails 5 Support [#315](https://github.com/open-telemetry/opentelemetry-ruby-contrib/pull/315)
- DOCS: Rails Instrumentation Compatibility

## v0.24.1 / 2023-01-14

- DOCS: Fix gem homepage

## v0.24.0 / 2022-12-06

- BREAKING CHANGE: Remove enable_recognize_route and span_naming options
- FIXED: Remove enable_recognize_route and span_naming options

## v0.23.1 / 2022-11-08

- FIXED: Bump rails instrumentation dependency on action_pack instrumentation

## v0.23.0 / 2022-10-14

- ADDED: Name ActionPack spans with the HTTP method and route

## v0.22.0 / 2022-06-09

- Upgrading Base dependency version
- FIXED: Broken test file requirements

## v0.21.0 / 2022-05-02

- ADDED: OTel Railtie
- FIXED: RubyGems Fallback

## v0.20.0 / 2021-12-01

- ADDED: Move activesupport notification subscriber out of action_view gem
- FIXED: Instrumentation of Rails 7

## v0.19.4 / 2021-10-06

- (No significant changes)

## v0.19.3 / 2021-09-29

- (No significant changes)

## v0.19.2 / 2021-09-29

- (No significant changes)

## v0.19.1 / 2021-09-09

- (No significant changes)

## v0.19.0 / 2021-08-12

- ADDED: Instrument active record
- ADDED: Add ActionView instrumentation via ActiveSupport::Notifications
- FIXED: Rails instrumentation to not explicitly install sub gems
- DOCS: Update docs to rely more on environment variable configuration
- This release adds support for Active Record and Action View.
- The `enable_recognize_route` configuration option has been moved to the ActionPack gem.
- See readme for details on how to configure the sub instrumentation gems.

## v0.18.1 / 2021-06-23

- FIXED: Updated rack middleware position to zero

## v0.18.0 / 2021-05-21

- ADDED: Updated API dependency for 1.0.0.rc1

## v0.17.0 / 2021-04-22

- ADDED: Added http.route in rails instrumentation to match the spec
- FIXED: Rails example by not using `rails` from git
- FIXED: Updated rack middleware position to zero

## v0.16.0 / 2021-03-17

- FIXED: Example scripts now reference local common lib
- DOCS: Replace Gitter with GitHub Discussions

## v0.15.0 / 2021-02-18

- (No significant changes)

## v0.14.0 / 2021-02-03

- (No significant changes)

## v0.13.0 / 2021-01-29

- (No significant changes)

## v0.12.0 / 2020-12-24

- (No significant changes)

## v0.11.0 / 2020-12-11

- FIXED: Rails tests
- FIXED: Copyright comments to not reference year

## v0.10.0 / 2020-12-03

- FIXED: Otel-instrumentation-all not installing all

## v0.9.0 / 2020-11-27

- Initial release.