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lifecycle 0.1.0.9000

  • New is_present() function to test whether the caller has supplied a deprecated() function.

lifecycle 0.1.0

  • Deprecated functions under the control of the developer now warn repeatedly in unit tests.

  • Deprecation warnings now record a backtrace. Call lifecycle::last_warnings() and lifecycle::last_warning() to print the warnings that occurred during the last command, along with their backtraces.

  • The naming scheme of signaller functions has been simplified:

    • signal_soft_deprecated() is now deprecate_soft().
    • warn_deprecated() is now deprecate_warn().
    • stop_defunct() is now deprecate_stop().

  • The signaller functions now take a version and two descriptors for the deprecated feature and its replacement (the latter is optional). The deprecation message is built from these components. You can pass a details argument to append additional information to the generated deprecation message.

  • Helpers from rlang's compat-lifecycle.R drop-in file are now exported in this package.