# 2.7.0 Beta 1
- Detect Kubernetes containers as containers for `running_in_container`
  config option. Commit 60822aac24ccc394df073091c64f05096455942d.
- Fix in memory logger initialization. PR #416
- Organize classes in their own files. PR #417
- Move tag value limit handling to extension. PR #418
- Add working_directory_path config option. PR #421
- Use doubles values in custom metrics functions. PR #422
- Bump agent to e41c3c0. Commit 8056af037f82eda156c5946911012e5c742b5664

# 2.6.1
- Remove request_headers warning and use sane default. PR #410
- Fix metrics format for internal agent metrics. PR #411

# 2.6.0
- Enable frozen strings by default. PR #384
- Add `revision` config option. PR #388
- Avoid generating unique action names for Padrino. PR #393
- Add `request_headers` filter configuration. PR #395
- Support tags for custom metrics. PR #398
- Add filter_session_data config option. PR #402 & #409
- Move default hostname behavior to extension. PR #404
- Add `request_headers` config to installation step. PR #406
- Rename ParamsSanitizer to HashSanitizer. PR #408
- Fix empty action name issue. Commit b292c2c93c8935ab54fc4d16598fa534c9cc9c90

# 2.5.3
- Fix Sidekiq action names containing arguments. PR #401

# 2.5.2
- Support Sidekiq delay extension for ActiveRecord instances. If using this
  feature in your app, an update is strongly recommended! PR #387
- Improve custom event formatter registration. An event formatter can now be
  registered in a Rails initializer after AppSignal has been loaded/started.
  PR #397

# 2.5.1
- Improve internal sample storage in agent.
  Commit 2c8eae26685c7a1517cf2e57b44edd1557a502f2
- No longer set _APPSIGNAL_AGENT_VERSION environment variable. PR #385

# 2.5.0
* Fix Capistrano config overrides. PR #375
* Add JRuby beta support. PR #376
* Fix locking issue on diagnose mode run.
  Commit e6c6de811f8115a73050fc865e89dd4945ddec57
* Increase stored length of error messages.
  Commit e6c6de811f8115a73050fc865e89dd4945ddec57

# 2.4.3
* Store more details for Redis events. PR #374

# 2.4.2
* Store agent architecture rather than platform. PR #367
* Improve documentation for `Appsignal.monitor_transaction` better.
  Commit e53987ba36a79fc8883f2e59322946297ddee773
* Change log level from info to debug for value comparing failures.
  Commit ecef28b28edaff46b95f53a916c93021dc763160
* Collect free memory host metric.
  Commit ecef28b28edaff46b95f53a916c93021dc763160
* Fix crashes when Set wasn't required before AppSignal, such as in the CLI.
  PR #373

# 2.4.1
* Add Que integration. PR #361
* Support Sidekiq delayed extension job action names better. Now action names
  are reported as their class and class method name (`MyClass.method`), rather
  than `Sidekiq::Extensions::DelayedClass#perform` for all jobs through that
  extension. PR #362
* Support Sidekiq Enterprise encrypted values. PR #365
* Use musl build for older libc systems. PR #366

# 2.4.0
- Add separate GNU linux build. PR #351 and
  Commit d1763f4dcb685608468a73f3192226f60f66b217
- Add separate FreeBSD build
  Commit d1763f4dcb685608468a73f3192226f60f66b217
- Fix crashes when using a transaction from multiple processes in an
  unsupported way.
  Commit d1763f4dcb685608468a73f3192226f60f66b217
- Auto restart agent when none is running
  Commit d1763f4dcb685608468a73f3192226f60f66b217
- Add `appsignal_user` Capistrano config option. PR #355
- Track Exception-level exceptions. PR #356
- Add tags and namespace arguments to `Appsignal.listen_for_error`. PR #357
- Revert Sidekiq delayed extension job action names fix.
  Commit 9b84a098604de5ef5e52645ba7fcb09d84f66eaa

# 2.3.7
* Support Sidekiq delayed extension job action names better. Now action names
  are reported as their class and class method name (`MyClass.method`), rather
  than `Sidekiq::Extensions::DelayedClass#perform` for all jobs through that
  extension. PR #348

# 2.3.6
* Allow configuration of permissions of working directory. PR #336
* Fix locking bug that delayed extension shutdown.
  Commit 51d90bb1207affc2c88f7cff5035a2c36acf9784
* Log extension start with app revision if present
  Commit 51d90bb1207affc2c88f7cff5035a2c36acf9784

# 2.3.5

Yanked

# 2.3.4
* Fix naming for ActiveJob integration with DelayedJob. PR #345

# 2.3.3
* Accept mixed case env variable values for the `true` value. PR #333
* Don't record sensitive HTTP_X_AUTH_TOKEN header. PR #334
* Support dry run option for Capistrano 3.5.0 and higher. PR #339
* Agent and extension update. Improve agent connection handling. Commit
  e75d2f9b520d46f6cd0266b484b2c26c3bdc8882

# 2.3.2
* Improve Rake argument handling. Allow for more detailed view of which
  arguments a tasks receives. PR #328

# 2.3.1
* Fix ActiveSupport::Notifications hook not supporting non-string names for
  events. PR #324

# 2.3.0
* Fix Shoryuken instrumentation when body is a string. PR #266
* Enable ActiveSupport instrumentation at all times. PR #274
* Add parameter filtering for background jobs. Automatically uses the AppSignal
  parameter filtering. PR #280
* Improve log messages for transactions. PR #293
* Remove thread_safe dependency. PR #294
* Add `Transaction#params` attribute for custom parameters. PR #295
* Fix queue time on DelayedJob integration. PR #297
* Add ActionCable support. PR #309
* Finish ActiveSupport notifications events when they would encounter a `raise`
  or a `throw`. PR #310
* Add `ignore_namespaces` option. PR #312
* Truncate lengthy parameter values to 2000 characters.
  Commit 65de1382f5f453b624781cde6e0544c89fdf89ef and
  d3ca2a545fb22949f3369692dd57d49b4936c739.
* Disable gracefully on Microsoft Windows. PR #313
* Add tags and namespace arguments to `Appsignal.set_error`. PR #317

# 2.2.1
* Fix support for Rails 5.1. PR #286
* Fix instrumentation that would report a duration of `0ms` for all DataMapper
  queries. PR #290
* Finish events when `Appsignal.instrument` encounters a `raise` or a `throw`.
  PR #292

# 2.2.0
* Support Ruby 2.4 better. PR #234
* Initial setup for documenting the Ruby gem's code. PR #243
* Move `running_in_container` auto detection to extension for easy reuse.
  PR #249
* Allow overriding of action and namespace for a transaction. PR #254
* Prefix all agent configuration environment variables with an underscore to
  separate the two usages. PR #258
* Force agent to run in diagnostic mode even when the user config is set to
  `active: false`. PR #260
* Stub JS error catching endpoint when not active. PR #263
* Use better event names for Padrino integration. PR #265
* No longer gzip payloads send by the Ruby gem transmitter. PR #269
* Send diagnostics data report to AppSignal on request. PR #270
* When JS exception endpoint payload is empty return 400 code. PR #271
* Remove hardcoded DNS servers from agent and add config option. PR #278

# 2.1.2
* Fix error with Grape request methods defined with symbols. PR #259

# 2.1.1
* Fix DNS issue related to the musl build.
  Commit 732c877de8faceabe8a977bf80a82a6a89065c4d and
  84e521d20d4438f7b1dda82d5e9f1f533ae27c4b
* Update benchmark and add load test. PR #248
* Fix configuring instrument Redis and Sequel from env. PR #257

# 2.1.0
* Add support for musl based libc (Alpine Linux). PR #229
* Implement `Appsignal.is_ignored_error?` and `Appsignal.is_ignored_action?`
  logic in the AppSignal extension. PR #224
* Deprecate `Appsignal.is_ignored_error?`. PR #224
* Deprecate `Appsignal.is_ignored_action?`. PR #224
* Enforce a coding styleguide with RuboCop. PR #226
* Remove unused `Appsignal.agent` attribute. PR #244
* Deprecate unused `Appsignal::AuthCheck` logger argument. PR #245

# 2.0.6
* Fix `Appsignal::Transaction#record_event` method call. PR #240

# 2.0.5
* Improved logging for agent connection issues.
  Commit cdf9d3286d704e22473eb901c839cab4fab45a6f
* Handle nil request/environments in transactions. PR #231

# 2.0.4
* Use consistent log format for both file and STDOUT logs. PR #203
* Fix log path in `appsignal diagnose` for Rails applications. PR #218, #222
* Change default log path to `./log` rather than project root for all non-Rails
  applications. PR #222
* Load the `APPSIGNAL_APP_ENV` environment configuration option consistently
  for all integrations. PR #204
* Support the `--environment` option on the `appsignal diagnose` command. PR
  #214
* Use the real system `/tmp` directory, not a symlink. PR #219
* Run the AppSignal agent in diagnose mode in the `appsignal diagnose` command.
  PR #221
* Test for directory and file ownership and permissions in the
  `appsignal diagnose` command. PR #216
* Test if current user is `root` in the `appsignal diagnose` command. PR #215
* Output last couple of lines from `appsignal.log` on agent connection
  failures.
* Agent will no longer fail to start if no writable log path is found.
  Commit 8920865f6158229a46ed4bd1cc98d99a849884c0, change in agent.
* Internal refactoring of the test suite and the `appsignal install` command.
  PR #200, #205

# 2.0.3
* Fix JavaScript exception catcher throwing an error on finishing a
  transaction. PR #210

# 2.0.2
* Fix Sequel instrumentation overriding existing logic from extensions. PR #209

# 2.0.1
* Fix configuration load order regression for the `APPSIGNAL_PUSH_API_KEY`
  environment variable's activation behavior. PR #208

# 2.0.0
* Add `Appsignal.instrument_sql` convenience methods. PR #136
* Use `Appsignal.instrument` internally instead of ActiveSupport
  instrumentation. PR #142
* Override ActiveSupport instrument instead of subscribing. PR #150
* Remove required dependency on ActiveSupport. Recommended you use
  `Appsignal.instrument` if you don't need `ActiveSupport`. PR #150 #142
* Use have_library to link the AppSignal extension `libappsignal`. PR #148
* Rename `appsignal_extension.h` to `appsignal.h`.
  Commit 9ed7c8d83f622d5a79c5c21d352b3360fd7e8113
* Refactor rescuing of Exception. PR #173
* Use GC::Profiler to track garbage collection time. PR #134
* Detect if AppSignal is running in a container or Heroku. PR #177 #178
* Change configuration load order to load environment settings after
  `appsignal.yml`. PR #178
* Speed up payload generation by letting the extension handle it. PR #175
* Improve `appsignal diagnose` formatting and output more data. PR #187
* Remove outdated `appsignal:diagnose` rake tasks. Use `appsignal diagnose`
  instead. PR #193
* Fix JavaScript exception without names resulting in errors themselves. PR #188
* Support namespaces in Grape routes. PR #189
* Change STDOUT output to always mention "AppSignal", not "Appsignal". PR #192
* `appsignal notify_of_deploy` refactor. `--name` will override any
  other `name` config. `--environment` is only required if it's not set in the
  environment. PR #194
* Allow logging to STDOUT. Available for the Ruby gem and C extension. The
  `appsignal-agent` process will continue log to file. PR #190
* Remove deprecated methods. PR #191
* Send "ruby" implementation name with version number for better identifying
  different language implementations. PR #198
* Send demonstration samples to AppSignal using the `appsignal install`
  command instead of asking the user to start their app. PR #196
* Add `appsignal demo` command to test the AppSignal demonstration samples
  instrumentation manually and not just during the installation. PR #199

# 1.3.6
* Support blocks arguments on method instrumentation. PR #163
* Support `APPSIGNAL_APP_ENV` for Sinatra. PR #164
* Remove Sinatra install step from "appsignal install". PR #165
* Install Capistrano integration in `Capfile` instead of `deploy.rb`. #166
* More robust handing of non-writable log files. PR #160 #158
* Cleaner internal exception handling. PR #169 #170 #171 #172 #173
* Support for mixed case keywords in sql lexing. appsignal/sql_lexer#8
* Support for inserting multiple rows in sql lexing. appsignal/sql_lexer#9
* Add session_overview to JS transaction data.
  Commit af2d365bc124c01d7e9363e8d825404027835765

# 1.3.5

* Fix SSL certificate config in appsignal-agent. PR #151
* Remove mounted_at Sinatra middleware option. Now detected by default. PR #146
* Sinatra applications with middleware loading before AppSignal's middleware
  would crash a request. Fixed in PR #156

# 1.3.4

* Fix argument order for `record_event` in the AppSignal extension

# 1.3.3

* Output AppSignal environment on `appsignal diagnose`
* Prevent transaction crashes on Sinatra routes with optional parameters
* Listen to `stage` option to Capistrano 2 for automatic environment detection
* Add `appsignal_env` option to Capistrano 2 to set a custom environment

# 1.3.2
* Add method to discard a transaction
* Run spec suite with warnings, fixes for warnings

# 1.3.1
* Bugfix for problem when requiring config from installer

# 1.3.0
* Host metrics is now enabled by default
* Beta of minutely probes including GC metrics
* Refactor of param sanitization
* Param filtering for non-Rails frameworks
* Support for modular Sinatra applications
* Add Sinatra middleware to `Sinatra::Base` by default
* Allow a new transaction to be forced by sinatra instrumentation
* Allow hostname to be set with environment variable
* Helpers for easy method instrumentation
* `Appsignal.instrument` helper to easily instrument blocks of code
* `record_event` method to instrument events without a start hook
* `send_params` is now configurable via the environment
* Add DataMapper integration
* Add webmachine integration
* Allow overriding Padrino environment with APPSIGNAL_APP_ENV
* Add mkmf.log to diagnose command
* Allow for local install with bundler `bundle exec rake install`
* Listen to `stage` option to Capistrano 3 for automatic environment detection
* Add `appsignal_env` option to Capistrano 3 to set a custom environment

# 1.2.5
* Bugfix in CPU utilization calculation for host metrics

# 1.2.4
* Support for adding a namespace when mounting Sinatra apps in Rails
* Support for negative numbers and ILIKE in the sql lexer

# 1.2.3
* Catch nil config for installer and diag
* Minor performance improvements
* Support for arrays, literal value types and function arguments in sql lexer

# 1.2.2
* Handle out of range numbers in queue lenght and metrics api

# 1.2.1
* Use Dir.pwd in CLI install wizard
* Support bignums when setting queue length
* Support for Sequel 4.35
* Add env option to skip errors in Sinatra
* Fix for queue time calculation in Sidekiq (by lucasmazza)

# 1.2.0
* Restart background thread when FD's are closed
* Beta version of collecting host metrics (disabled by default)
* Hooks for Shuryoken
* Don't add errors from env if raise_errors is off for Sinatra

# 1.1.9
* Fix for race condition when creating working dir exactly at the same time
* Make diag Rake task resilient to missing config

# 1.1.8
* Require json to fix problem with using from Capistrano

# 1.1.7
* Make logging resilient for closing FD's (daemons gem does this)
* Add support for using Resque through ActiveJob
* Rescue more expections in json generation

# 1.1.6
* Generic Rack instrumentation middleware
* Event formatter for Faraday
* Rescue and log errors in transaction complete and fetching params

# 1.1.5
* Support for null in sql sanitization
* Add require to deploy.rb if present on installation
* Warn when overwriting already existing transaction
* Support for x86-linux
* Some improvements in debug logging
* Check of log file path is writable
* Use bundled CA certs when installing agent

# 1.1.4
* Better debug logging for agent issues
* Fix for exception with nil messages
* Fix for using structs as job params in Delayed Job

# 1.1.3
* Fix for issue where Appsignal.send_exception clears the current
  transaction if it is present
* Rails 3.0 compatibility fix

# 1.1.2
* Bug fix in notify of deploy cli
* Better support for nil, true and false in sanitization

# 1.1.1
* Collect global metrics for GC durations (in beta, disabled by default)
* Collect params from Delayed Job in a reliable way
* Collect perams for Delayed Job and Sidekiq when using ActiveJob
* Official Grape support
* Easier installation using `bundle exec appsignal install`

# 1.1.0
Yanked

# 1.0.7
* Another multibyte bugfix in sql sanizitation

# 1.0.6
* Bugfix in sql sanitization when using multibyte utf-8 characters

# 1.0.5
* Improved sql sanitization
* Improved mongoid/mongodb sanitization
* Minor performance improvements
* Better handling for non-utf8 convertable strings
* Make gem installable (but not functional) on JRuby

# 1.0.4
* Make working dir configurable using `APPSIGNAL_WORKING_DIR_PATH` or `:working_dir_path`

# 1.0.3
* Fix bug in completing JS transactions
* Make Resque integration robust for bigger payloads
* Message in logs if agent logging cannot initialize
* Call `to_s` on DJ id to see the id when using MongoDB

# 1.0.2
* Bug fix in format of process memory measurements
* Event formatter for `instantiation.active_record`
* Rake integration file for backwards compatibility
* Don't instrument mongo-ruby-driver when transaction is not present
* Accept method calls on extension if it's not loaded
* Fix for duplicate notifications subscriptions when forking

# 1.0.1
* Fix for bug in gem initialization when using `safe_yaml` gem

# 1.0.0
* New version of event formatting and collection
* Use native library and agent
* Use API V2
* Support for Mongoid 5
* Integration into other gems with a hooks system
* Lots of minor bug fixes and improvements

# 0.11.15
* Improve Sinatra support

# 0.11.14
* Support ActiveJob wrapped jobs
* Improve proxy support
* Improve rake support

# 0.11.13
* Add Padrino support
* Add Rake task monitoring
* Add http proxy support
* Configure Net::HTTP to only use TLS
* Don't send queue if there is no content
* Don't retry transmission when response code is 400 (no content)
* Don't start Resque IPC server when AppSignal is not active
* Display warning message when attempting to send a non-exception to `send_exception`
* Fix capistrano 2 detection
* Fix issue with Sinatra integration attempting to attach an exception to a transaction that doesn't exist.

# 0.11.12
* Sanitizer will no longer inspect unknown objects, since implementations of inspect sometimes trigger unexpected behavior.

# 0.11.11
* Reliably get errors in production for Sinatra

# 0.11.10
* Fix for binding bug in exceptions in Resque
* Handle invalidly encoded characters in payload

# 0.11.9
* Fix for infinite attempts to transmit if there is no valid api key

# 0.11.8
* Add frontend error catcher
* Add background job metadata (queue, priority etc.) to transaction overview
* Add APPSIGNAL_APP_ENV variable to Rails config, so you can override the environment
* Handle http queue times in microseconds too

# 0.11.7
* Add option to override Job name in Delayed Job

# 0.11.6
* Use `APPSIGNAL_APP_NAME` and `APPSIGNAL_ACTIVE` env vars in config
* Better Sinatra support: Use route as action and set session data for Sinatra

# 0.11.5
* Add Sequel gem support (https://github.com/jeremyevans/sequel)

# 0.11.4
* Make `without_instrumentation` thread safe

# 0.11.3
* Support Ruby 1.9 and up instead of 1.9.3 and up

# 0.11.2
* If APP_REVISION environment variable is set, send it with the log entry.

# 0.11.1
* Allow a custom request_class and params_method on  Rack instrumentation
* Loop through env methods instead of env
* Add HTTP_CLIENT_IP to env methods

# 0.11.0
* Improved inter process communication
* Retry sending data when the push api is not reachable
* Our own event handling to allow for more flexibility and reliability
  when using a threaded environment
* Resque officially supported!

# 0.10.6
* Add config option to skip session data

# 0.10.5
* Don't shutdown in `at_exit`
* Debug log about missing name in config

# 0.10.4
* Add REQUEST_URI and PATH_INFO to env params whitelist

# 0.10.3
* Shut down all operations when agent is not active
* Separately rescue OpenSSL::SSL::SSLError

# 0.10.2
* Bugfix in event payload sanitization

# 0.10.1
* Bugfix in event payload sanitization

# 0.10.0
* Remove ActiveSupport dependency
* Use vendored notifications if ActiveSupport is not present
* Update bundled CA certificates
* Fix issue where backtrace can be nil
* Use Appsignal.monitor_transaction to instrument and log errors for
  custom actions
* Add option to ignore a specific action

# 0.9.6
* Convert to primitives before sending through pipe

# 0.9.5
Yanked

# 0.9.4
* Log Rails and Sinatra version
* Resubscribe to notifications after fork

# 0.9.3
* Log if appsignal is not active for an environment

# 0.9.2
* Log Ruby version and platform on startup
* Log reason of shutting down agent

# 0.9.1
* Some debug logging tweaks

# 0.9.0
* Add option to override Capistrano revision
* Expanded deploy message in Capistrano
* Refactor of usage of Thread.local
* Net::HTTP instrumentation
* Capistrano 3 support

# 0.8.15
* Exception logging in agent thread

# 0.8.14
* Few tweaks in logging
* Clarify Appsignal::Transaction.complete! code

# 0.8.13
* Random sleep time before first transmission of queue

# 0.8.12
* Workaround for frozen string in Notification events
* Require ActiveSupport::Notifications to be sure it's available

# 0.8.11
* Skip enqueue, send_exception and add_exception if not active

# 0.8.10
* Bugfix: Don't pause agent when it's not active

# 0.8.9
Yanked

# 0.8.8
* Explicitely require securerandom

# 0.8.7
* Dup process action event to avoid threading issue
* Rescue failing inspects in param sanitizer
* Add option to pause instrumentation

# 0.8.6
* Resque support (beta)
* Support tags in Appsignal.send_exception
* Alias tag_request to tag_job, for background jobs
* Skip sanitization of env if env is nil
* Small bugfix in forking logic
* Don't send params if send_params is off in config
* Remove --repository option in CLI
* Name option in appsignal notify_of_deploy CLI
* Don't call to_hash on ENV
* Get error message in CLI when config is not active

# 0.8.5
* Don't require revision in CLI notify_of_deploy

# 0.8.4
* Skip session sanitize if not a http request
* Use appsignal_config in Capistrano as initial config

# 0.8.3
* Restart thread when we've been forked
* Only notify of deploy when active in capistrano
* Make sure env is a string in config

# 0.8.2
* Bugfix in Delayed Job integration
* appsignal prefix when logging to stdout
* Log to stdout on Shelly Cloud

# 0.8.1
* Fix in monitoring of queue times

# 0.8.0
* Support for background processors (Delayed Job and Sidekiq)

# 0.7.1
* Better support for forking webservers

# 0.7.0
* Mayor refactor and cleanup
* New easier onboarding process
* Support for Rack apps, including experimental Sinatra integration
* Monitor HTTP queue times
* Always log to stdout on Heroku

# 0.6.7
* Send HTTP_X_FORWARDED_FOR env var

# 0.6.6
* Add Appsignal.add_exception

# 0.6.5
* Fix bug where fast requests are tracked with wrong action

# 0.6.4
* More comprehensive debug logging

# 0.6.3
* Use a mutex around access to the aggregator
* Bugfix for accessing connection config in Rails 3.0
* Add Appsignal.tag_request
* Only warn if there are duplicate push keys

# 0.6.2
* Bugfix in backtrace cleaner usage for Rails 4

# 0.6.1
* Bugfix in Capistrano integration

# 0.6.0
* Support for Rails 4
* Data that's posted to AppSignal is now gzipped
* Add Appsignal.send_exception and Appsignal.listen_for_exception
* We now us the Rails backtrace cleaner

# 0.5.5
* Fix minor bug

# 0.5.4
* Debug option in config to get detailed logging

# 0.5.3
* Fix minor bug

# 0.5.2
* General improvements to the Rails generator
* Log to STDOUT if writing to log/appsignal.log is not possible (Heroku)
* Handle the last transactions before the rails process shuts down
* Require 'erb' to enable dynamic config