v1.2.0

Schema

• Add always_record definition to Sampler
  (#698)
• Add experimental meter_provider.view_matching_mode/development property
  (#666)
• Deprecate MetricProducer.opencensus and OpenCensusMetricProducer,
  following the deprecation of OpenCensus compatibility in the
  specification
  (#655)
• Add attribute_value_depth_limit to attribute, span, and log record limits
  (#702)
• Add max_request_size and max_response_size to OTLP exporters
  (#700)

Tooling

• Validator: read the file_format a configuration file declares and check it
  against the schema version the binary embeds
  (#739)
• Add schema modeling rule describing the deprecation process
  (#659)
• Add check for non-identifier characters in schema names
  (#691)
• Remove generated schema-docs.md, favoring opentelemetry.io
  (#667,
  #678)
• Add Python implementation support status
  (#668,
  #669)
• Add JavaScript implementation support status
  (#670)
• Update C++ implementation support status
  (#734)
• Add shared OSSF Scorecard, security scanning, and zizmor CI workflows;
  group GitHub Action updates
  (#648,
  #685,
  #720,
  #725,
  #732)