tortoiseplink ssh variant still needed?

Hi,

Git differentiates between different variants of SSH tools.

One variant is the tortoiseplink variant. When this is configured Git passes passes a special "--batch" parameter and passes the port using "-P" (capitalized P) t the SSH tool.

IIRC tortoiseplink was initially created by TortoiseCVS which is nowadays not maintained any more (<http://www.tortoisecvs.org/download.shtml>). In TortoiseSVN and TortoiseGit tortoiseplink was modified six years ago (around 2015-03-07) to ignore the "--batch" parameter and also accept "-p" additionally to "-P" (cf. <https://osdn.net/projects/tortoisesvn/scm/svn/commits/26348>).

Therefore, my first question: Does Git still want to support very old versions of tortoiseplink or should I provide a patch which drops support for it?

Second question: TortoiseGit comes with an even more improved version of TortoisePLink (named TortoiseGitPLink, but also ships the same binary as tortoiseplink) that also accepts "-o SetEnv=..." parameters in order to support the Git protocol version 2. At the moment TortoiseGit automatically sets the environment variable "GIT_SSH_VARIANT=ssh". This works, but is not perfect if other parameter of OpenSSH are used. Would it make sense to add a new ssh variant tortoisegitplink? If yes, how to handle new versions that might also support even more OpenSSH command line parameters?