Enhancements

• Every test spec will have its own xctest bundle.
  Dimitris Koutsogiorgas
  Jenn Kaplan
  #7908

• Generate a separate app host per pod.
  Samuel Giddins
  Dimitris Koutsogiorgas
  #8005

• Add default launch screen storyboard to test app hosts.
  Dimitris Koutsogiorgas
  #7971

• Always display downloader error message.
  Dimitris Koutsogiorgas
  #7625

• Warn instead of error when linting if public_header_files or
  private_header_files do not match any files.
  Eric Amorde
  #7427

• Add --platforms parameter to pod spec lint and pod lib lint to specify
  which platforms to lint.
  Eric Amorde
  #7783

• Warn if the git:// protocol is used as the source of a pod.
  Dimitris Koutsogiorgas
  #7705

• Remove all xcode project state from target objects,
  improving project generation performance.
  Dimitris Koutsogiorgas
  #7610

• Improve performance of Pods project generation by skipping native targets
  for which dependent targets have already been added.
  Jacek Suliga

• Refactor build settings generation to perform much better on large projects.
  Samuel Giddins

• Make sure the temporary directory used to download a pod is removed,
  even if an error is raised.
  augustorsouza

• Avoid unlocking sources on every pod install when there are no
  plugin post-install hooks for performance reasons.
  Samuel Giddins

• Change shell script relative paths to use ${PODS_ROOT} instead of
  ${SRCROOT}/Pods.
  Whirlwind
  #7878

• Set the path of the Pods group in the user project.
  Whirlwind
  #7886
  #6194

• Add a --deployment flag to pod install that errors if there are any
  changes to the Podfile or Lockfile.
  Samuel Giddins

• Add --use-modular-headers flag to the pod spec lint, pod lib lint,
  and pod repo push commands.
  Eric Amorde
  #7683

Bug Fixes

• Scope embedded pods to their host targets by their configuration.
  Dimitris Koutsogiorgas
  #8011

• Set the SWIFT_VERSION on resource bundle targets that contain compiled
  sources and use Swift.
  Dimitris Koutsogiorgas
  #7950

• Do not ignore --no-overwrite parameter if a commit message is specified.
  Dimitris Koutsogiorgas
  #7926

• Generate -ObjC in OTHER_LDFLAGS for apps with static frameworks.
  Paul Beusterien
  #7946

• Do not display that a source was changed if it uses different casing.
  Dimitris Koutsogiorgas
  #7883

• Set CURRENT_PROJECT_VERSION for generated app host targets.
  Dimitris Koutsogiorgas
  #7825

• Properly follow symlinks within macOS universal frameworks.
  Dimitris Koutsogiorgas
  #7587

• Validator adds a Swift file if any of the pod targets use Swift.
  Dimitris Koutsogiorgas
  #7738

• Fix INFOPLIST_FILE being overridden when set in a podspec's pod_target_xcconfig.
  Eric Amorde
  #7530

• Raise an error if user target SWIFT_VERSION is missing.
  Dimitris Koutsogiorgas
  #7770

• Fix the umbrella header import path when header_dir is specified in the
  podspec and building a static library with modular headers enabled.
  chuganzy
  #7724

• Do not symlink headers that belong to test specs.
  Dimitris Koutsogiorgas
  #7762

• Do not build pod target if it only contains script phases.
  Dimitris Koutsogiorgas
  #7746

• Do not try to integrate uncreated test native targets.
  Dimitris Koutsogiorgas
  #7394

• Attempt to parse SWIFT_VERSION from xcconfig during target inspection.
  Dimitris Koutsogiorgas
  #7731

• Do not crash when creating build settings for a missing user build configuration.
  Dimitris Koutsogiorgas
  #7698

• Do not overwrite App host info plist when using multiple test specs.
  Dimitris Koutsogiorgas
  #7695

• Do not include test dependencies' input and output paths.
  Dimitris Koutsogiorgas
  #7688

• Skip test file accessors for uses_swift? and should_build? methods.
  Dimitris Koutsogiorgas
  #7671

• When integrating a vendored framework while building pods as static
  libraries, public headers will be found via FRAMEWORK_SEARCH_PATHS
  instead of via the sandbox headers store.
  Samuel Giddins

• Improve performance of grouping pods by configuration.
  Samuel Giddins

• Stop linking frameworks to static libraries to avoid warnings with the new build system.
  Samuel Giddins
  #7570

• Allow EXPANDED_CODE_SIGN_IDENTITY to be unset.
  Keith Smiley
  #7708

• Running pod install with static library modules no longer causes pods to
  be recompiled.
  Samuel Giddins

• A pod built as a static library linked into multiple targets will only build
  as a module when all of the targets it is linked into have opted into it.
  Samuel Giddins

• Use CP_HOME_DIR as the base for all default directories.
  mcfedr
  #7917

• Exclude 32-bit architectures from Pod targets when the deployment target is
  iOS 11.0 or higher.
  Eric Amorde
  #7148

• Fail gracefully when the analyzer has dependencies to fetch, but has been
  told not to fetch them.
  Samuel Giddins

• Don't generate framework or resource scripts if they will not be used.
  Eric Amorde

• Fix a crash when loading the macho gem in certain environments.
  Eric Amorde
  #7867