v0.11.6

Fix: pass disable flag by patching new singleton method (#303)

v0.11.5

Feature: Add disable flag to http adapter (#301)

v0.11.4

Fix: Add extern to global variable declarations for gcc 10 (#288)

v0.11.3

Feature: Log last error message on circuit breaker state transition (#285)
Fix: Update README and docs to resolve common misconception about error_threshold (#283)

v0.11.2

Fix: Remove MySQL client is not connected error from mysql2 adapter

v0.11.1

Feature: Add Semian.namespace to globally prefix all the semaphore names. (#280)

v0.11.0

Feature: Add Semian.default_permissions to globally change the default semaphore permissions. (#279)

v0.10.6

Fix: Match whitelisted SQL queries when Marginalia is prepended (#276)

v0.10.5

Fix: Compatibility with GC.compact

v0.10.4

Fix: Revert the changes in v0.10.3. (#270)

v0.10.3

Fix: Positional/Keyword arguments deprecations warning for Ruby 2.7 in the grpc adapter. (#269)

v0.10.2

Fix: Positional/Keyword arguments deprecations warning for Ruby 2.7.

v0.10.1

Fix: thread safety bug on Ruby 2.7. (#263)

v0.10.0

Feature: Support half open resource timeout for redis.

v0.9.1

Fix: Compatibility with MRI 2.3

v0.9.0

Feature: Add a LRU to garbage collect old resources. (#193)

v0.8.9

Fix: Recursion issue in MySQL2 adapter causing circuits breakers to stay open much longer than they should. (#250)
Fix: Better handle DNS resolutions exceptions in Redis adapter. (#230)

v0.8.8

Feature: Introduce the GRPC adapter (#200)

v0.8.7

Fix: Instrument success for acquire_circuit_breaker (#209)

v0.8.6

Feature: If an error instance responds to #marks_semian_circuits? don't mark the circuit if it returns false (#210)

v0.8.5

Fix: Redis adapter using hiredis is resilient to DNS resolution failures (#205)

v0.8.4

Feature: Introduce half_open_resource_timeout which changes the resource timeout when the circuit is in a half-open state for the Net::HTTP adapter. (#198)
Feature: Add the cause of the last error when a circuit opens (#197)
Fix: Reset successes when transitioning to the half open state (#192)

v0.8.1

Fix: Expose half_open? when the circuit state has not transitioned but will. This allows consumers further up the stack to know if the circuit is half open.

v0.8.0

Feature: Introduce half_open_resource_timeout which changes the resource timeout when the circuit is in a half-open state (#188)

v0.7.8

Feature: More informative error messages when initializing Semian with missing arguments (#182)
Fix: Redis adapter is now resilient to DNS resolution failures (#184)

v0.7.5

Fix: Repaired compatibility with dependent Redis library

v0.7.4

Fix: Protect internal semaphore when adjusting resource count (#164)
Feature: Use prepend when monkey-patching Net::HTTP. (#157)
Feature: Include time spend waiting for bulkhead in notification (#154)

v0.7.1

Feature: Add the behaviour to enable open circuiting on 5xxs conditionally (#149)
Refactor: Configurable hosts for Semian's development dependencies (#152)

v0.7.0

Thread-safety for circuit breakers by default (#150)
Fix bug where calling name on a protected resource without a semaphore would fail (#151)

v0.6.2

Refactor: Refactor semian ticket management into its own files (#116)
Refactor: Create sem_meta_lock and sem_meta_unlock (#115)
Refactor: Refactor semaphore operations (#114)

v0.6.1

Refactor: Generate a unique semaphore key by including size of semaphore set
Refactor: Refactor semian_resource related C functions
Fix: Don't require sudo for travis (#110)
Refactor: Refactor semian.c includes and types into header files
Fix: Use glob instead of git for gemspec file list
Fix: Fix travis CI for ruby 2.3.0 installing rainbows
Refactor: Switch to enumerated type for tracking semaphore indices
Docs: readme: explain co-operation between cbs and bulkheads
Docs: readme: add section about server limits

v0.6.0

Feature: Load semian/rails automatically if necessary
Feature: Implement AR::AbstractAdapter#semian_resource

v0.5.4

Fix: Also let "Too many connections" be a first class conn error

v0.5.3

Fix: mysql: protect pings
Fix: mysql: match more lost conn queries

v0.5.2

Fix: Make request_allowed? thread safe
Fix: Fix CI connect errors on HTTP requests by using 127.0.0.1 for host

v0.5.1

Fix: Assert Resource#initialize_semaphore contract on Resource init
Fix: Lock on older thin version for pre MRI 2.2 compatibility

v0.5.0

Fix: Only issue unsupported or disabled semaphores warnings when the first resource is instanciated
Refactor: Cleanup requires
Maintenance: Use published version of the toxiproxy gem
Fix: Fix minitest deprecation warnings
Maintenance: Update bundler on travis
Maintenance: Update supported MRI versions on travis

v0.4.3

Fix: Fix lazy aliasing of Redis#semian_resource
Fix: Workaround rubocop parser limitations

v0.4.2

Fix: Fix for TimeoutError is deprecated in Ruby 2.3.0
Feature: Include Ruby 2.3 in Travis builds

v0.4.1

Fix: resource: cast float ticket count to fixnum #75

v0.4.0

Feature: net/http: add adapter for net/http #58
Refactor: circuit_breaker: split circuit breaker into three data structures to allow for alternative implementations in the future #62
Fix: mysql: don't prevent rollbacks on transactions #60
Fix: core: fix initialization bug when the resource is accessed before the options are set #65