Release 0.47.0

[morrisonlevi]

Release 0.47.0.

Deprecation notice:

• Setting service name via DD_SERVICE_NAME is now deprecated and will be removed in a future release. Use DD_SERVICE instead for consistency with other Datadog tracers and services.
• Setting global tags via DD_TRACE_GLOBAL_TAGS is now deprecated and will be removed in a future release. Use DD_TAGS instead (with the same format) for consistency with other Datadog tracers and services.
• DD_TRACE_RESOURCE_URI_MAPPING is deprecated now that it has been split into DD_TRACE_RESOURCE_URI_MAPPING_INCOMING and DD_TRACE_RESOURCE_URI_MAPPING_OUTGOING.
• The functions dd_trace and dd_trace_forward_call are deprecated and will be made a no-op in the next release. See [Deprecation Notice] Custom instrumentation with dd_trace() #924 for how to migrate.

Added

• Apply new uri to resource normalization rules Apply new uri to resource normalization rules #928
• Add DDTrace namespace for internal functions Add DDTrace namespace for internal functions #930
• Startup logging (can be disabled by setting DD_TRACE_STARTUP_LOGS=0) Add startup logging #935

Changed

• Sandboxed cURL (PHP 5) Sandbox cURL (PHP 5) #911, Add a separate PHP 5 only file #938
• Sandbox Lumen (PHP 5) Sandbox Lumen on PHP 5 #945
• Sandboxed Symfony (PHP 5) Enable sandboxed integration for Symfony on PHP 5 #946
• Add support for service name configuration via DD_SERVICE Add support for service name configuration via DD_SERVICE #919
• Add support for DD_TAGS, fallback to DD_TRACE_GLOBAL_TAGS Add support for DD_TAGS, fallback to DD_TRACE_GLOBAL_TAGS #920
• Add support for DD_VERSION and DD_ENV variables Add support for DD_VERSION and DD_ENV variables #803 - thanks @brettlangdon
• Enable OpenTracing test suite in CI Enable OpenTracing test suite in CI #921
• Defaults for name and resource on SpanData Defaults for name and resource on SpanData #923
• Refactor dispatch.{c,h} Refactor dispatch.{c,h} #932
• Extract ddtrace_sandbox_begin/ddtrace_sandbox_end helpers Extract ddtrace_sandbox_begin/ddtrace_sandbox_end helpers #940
• Warn on dd_trace usage if DD_TRACE_WARN_LEGACY_DD_TRACE Warn on dd_trace usage if DD_TRACE_WARN_LEGACY_DD_TRACE #941

Fixed

• Only build on 64-bit platforms Only build on 64-bit platforms #929 (thanks for the report @remicollet)
• (PHP 5.4) Make compilation to single file compatible with include __DIR__ . '...' in files Make compilation to single file compatible with include __DIR__ . '...' in files #943

[SammyK]

LGTM! Big release. :)