• Important internal refactoring
• New API to initialize margo

• fix potential memory corruption in environment variables

• correct version string

• bug fix to json reference counting

• bug fixes to address string handling

• bug fixes to json configuration handling

• json-based configuration
• API change: convert margo_set_param and margo_get_param to take string arguments
• improved MacOS support (contributed by Tyler Reddy)

• uses synchronous version of HG_Addr_lookup() when available (Mercury 2.0rc1 or newer). Avoids extra context switch for transports that don't do connection-oriented work during lookup.

Minor maintenance / bug fix release

• fix mercury rpath issue for autotools projects that use mercury
• fix failing timeout test in make check target

This release brings the following new functions:

• magro_top_prefinalize_callback
• margo_top_finalize_callback
• margo_provider_top_prefinalize_callback
• margo_provider_top_finalize_callback

Added parallel bulk transfers and margo_wait_any.

Reduces CPU consumption when profiling is enabled

Added the following functions:

• margo_push_prefinalize_callback
• margo_pop_prefinalize_callback
• margo_provider_push_prefinalize_callback
• margo_provider_pop_prefinalize_callback

• Adds RPC breadcrumbs
• Corrects a bug with provider-specific finalize callbacks

• Adds support for provider-specific finalize callbacks
• Adds margo_deregister

• Adds support for provider-based timed forward
• Adds support for asynchronous timed forward
• Replaces definition of margo_request with opaque pointer