# Release History: opentelemetry-instrumentation-rack

### v0.19.2 / 2021-08-18

* FIXED: Rack middleware assuming script_name presence 

### v0.19.1 / 2021-08-12

* DOCS: Update docs to rely more on environment variable configuration 

### v0.19.0 / 2021-06-23

* BREAKING CHANGE: Total order constraint on span.status= 

* ADDED: Add Tracer.non_recording_span to API 
* FIXED: Total order constraint on span.status= 

### v0.18.0 / 2021-05-21

* ADDED: Updated API depedency for 1.0.0.rc1
* FIXED: Removed http.status_text attribute #750

### v0.17.0 / 2021-04-22

* (No significant changes)

### v0.16.0 / 2021-03-17

* BREAKING CHANGE: Pass env to url quantization rack config to allow more flexibility

* ADDED: Pass env to url quantization rack config to allow more flexibility
* ADDED: Add rack instrumentation config option to accept callable to filter requests to trace
* FIXED: Example scripts now reference local common lib
* DOCS: Replace Gitter with GitHub Discussions

### v0.15.0 / 2021-02-18

* ADDED: Add instrumentation config validation

### v0.14.0 / 2021-02-03

* BREAKING CHANGE: Replace getter and setter callables and remove rack specific propagators

* ADDED: Replace getter and setter callables and remove rack specific propagators
* ADDED: Add untraced endpoints config to rack middleware

### v0.13.0 / 2021-01-29

* FIXED: Only include user agent when present

### v0.12.0 / 2020-12-24

* (No significant changes)

### v0.11.0 / 2020-12-11

* FIXED: Copyright comments to not reference year

### v0.10.1 / 2020-12-09

* FIXED: Rack current_span

### v0.10.0 / 2020-12-03

* (No significant changes)

### v0.9.0 / 2020-11-27

* BREAKING CHANGE: Add timeout for force_flush and shutdown

* ADDED: Instrument rails
* ADDED: Add timeout for force_flush and shutdown

### v0.8.0 / 2020-10-27

* BREAKING CHANGE: Move context/span methods to Trace module
* BREAKING CHANGE: Remove 'canonical' from status codes

* FIXED: Move context/span methods to Trace module
* FIXED: Remove 'canonical' from status codes

### v0.7.0 / 2020-10-07

* FIXED: Remove superfluous file from Rack gem
* DOCS: Added README for Rack Instrumentation
* DOCS: Standardize toplevel docs structure and readme

### v0.6.0 / 2020-09-10

* (No significant changes)