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CHANGELOG.md

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4.0.0

  • Support for scalajs 1.0.0 and swapping out log4s with scalajs-logging

3.0.0

  • Support for scala 2.13 and updated libraries (notably using scalatest for property testing, and rev cats/cats-effect from 1.x to 2.x). Note that we can now move (most) tests into shared and use AsyncFreeSpec, with the exception of that which we inherit from cats-effect, which is still using scalacheck. This will be done in a subsequent point release as its an implementation detail which does not affect the library API. This version requires and depends on cedi-build 1.2.0. 2.0.2 =====
  • Fix Stack Overflow for parTraverse. Issue #79. 2.0.1 =====
  • Fix issue where TraceSystem timer type gets misconfigured in F ~> G. Results in nonsensical Span times when using Parallel typeclasses. Issue #75. 2.0.0 =====
  • Added the ability to set a sampled indicator in the TraceContext[F] and to encode/decode the sampled indicator to/from XB3 headers. If sampled is set to false in the TraceContext, the actual emission of Spans for that trace are skipped.
  • Added an Elastic Common Search (ECS) compliant emitter within the logstash module which encodes the spans in a manner consistent with the ECS specification (1.0.0-beta2 revision). The top-level metadata map in the TraceSystem has been replaced with a data structure, which separates out identity and metadata components of system-wide common data so that the logstash module's EcsLogstashLogbackEmitter can encode identity fields directly rather than combining them all into a metadata group. This isn't specific to ECS but allows for more re-use of common ECS fields at the top-level.
  • The core, logging, xb3, and money modules are now built for both the JVM and JavaScript environments. The logging module uses io.chrisdavenport.log4cats to abstract over JVM and JavaScript-specific logging frameworks, with the JVM environment continuing to use org.slf4j over ch.qos.logback while the JavaScript environment uses org.log4s.log4s.
  • Updated typeclasses to use cats-effect 1.0, which includes a number of changes, including the Bracket typeclass for handling finalization and resource cleanup. This typeclass and the TraceT.bracket and TraceT.bracketCase convenience methods take the place of the cedi-dtrace 1.x bestEffortOnFinish function. Also added ContextShift typeclass to handle shifting to a new thread pool with shift and to temporarily evaluate an effect on a thread pool and then shift back to the current one via evalOn (the use case for the latter is primarily to evalute a blocking effect on a dedicated thread pool to avoid possible deadlocks).
  • Removed requirement for a TraceContext[F] in implicit scope for Concurrent typeclass.
  • Fixed stack safety issues with TraceT instances. Previously, it was possible to get stack overflow exceptions with deeply nested flatMap, map and attempt invocations.
  • Added law testing of typeclass instances. 1.4.0 =====
  • Guard marker creation if debug is disabled in LogstashLogbackEmitter. 1.3.0 =====
  • Implement ConcurrentEffect and Timer typeclass
  • Fixed issue with Effect typeclass runAsync function implementation causing loss of trace context.
  • Added money, xb3, and http4s modules, with support for Money,
  • and X-B3 headers and generation and extraction of trace information to/from
  • headers for the http4s library.

1.1.0

  • Upgraded to Circe 0.7.0

1.0.0

  • Initial revision