Developer Notes for 
		P4API, the Helix Application Programming Interface for C/C++
		P4, the Helix Command line client 
		P4P, the Helix Proxy 
		P4Broker, the Helix Broker 

                            Version 2018.2

Introduction

	This document is contains developer notes for:
		* Helix C/C++ API and other derived APIs and
		* Helix Client (P4)
		* Helix Proxy (P4P) and
		* Helix Broker (P4Broker)

	For details about installing and using the Helix C/C++ API,
	refer to the API User's Guide, posted on the Perforce Web site at:

	http://www.perforce.com/perforce/technical.html

Supported Platforms for p4api

	Linux kernel 2.6+ for Intel(x86,x86_64)
	Windows for Intel(ntx86, ntx64)
	Apple OS X 10.10+ for Intel(x86_64)

Important Platform End-of-Life Notice
	This notice identifies the platforms that will be placed in
	End-of-Life (EOL) status on  October 2020. This applies to the
	p4api component of the server release.

	The following platforms have entered the Obsolescent phase
	in this release:

	Mac OS X 10.5, 10.6, 10.7, 10.8, 10.9(x86, x86_64)

	OBSOLESCENT Phase:
	Starting with this release,these platforms will no longer be
	supported.  Customers will receive full support and patches
	for the deprecated platforms during this phase for older
	releases. The platforms will remain in this phase until
	October 2020 after which they will transition into the
	discontinued phase.

	DISCONTINUED (EOL) Phase:
	Patches will no longer be issued for these platforms. We will
	no longer provide technical support to customers with servers
	on these platforms

SSL Support

	Beginning with the 2017.1 release of the Helix C/C++ API,
	the dependency on OpenSSL is now enforced and the SSL
	stub library has been removed.  Executables linked against
	the P4API libraries must also be linked against real
	OpenSSL libraries: the latest 1.0.2 patch is recommended. 

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   See marks in the notes below:

	* -- requires new p4 client program
	     including all client applications and derived APIs

	** -- requires new p4d server program

	*** -- requires new p4p proxy program

	**** -- requires new p4broker  program

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Minor new functionality in 2018.2

	#1711178 (Bug #95847) *
	    'P4INT64' and 'long' data types for the 'value' argument
	    of StrDict::SetVar() are now supported.

	#1663100 (Bug #95231) *
	    A new ClientSSO class has been added so that clients may implement
	    alternative login when P4LOGINSSO would normally be called.

	#1707917,1684188 *
	    The FileSys/PathSys classes now have some Create* functions that
	    return std::unique_ptr instead of a bare pointer.

Bugs fixed in 2018.2

	#1697165 **
	    The second factor authentication functionality has been renamed to
	    multi factor authentication. This only affects documentation and
	    messages sent to the client; configuration and tagged output have
	    not been changed.

	#1671476 (Bug #95082) *
	    The Rpc::Close() P4API function no longer does a blocking
	    select(). Use the 'net.maxclosewait' configurable to control
	    the timeout (defaults to 1 second).