v1.6.0 Linux & Windows

New features

• HWID (Unique Machine Identifier). Reliably obtain a client's hardware id on the server.
  New natives ncl_get_client_hwid(id, hwid[], len) and ncl_is_hwid_received(id), and a new
  forward ncl_hwid_received(id, const hwid[]). HWID is delivered by NextClient 2.5.0 and above;
  NCL_HWID_LENGTH is 64.
• Mouse inversion. New native ncl_invert_mouse(id, bool:invert_pitch, bool:invert_yaw) to
  invert the pitch and/or yaw mouse axes of the client.
• Weapon sound override. New natives ncl_override_weapon_sound(weapon_id, const original[], const replacement[])
  and ncl_override_weapon_sound_clear(weapon_id) to replace the sound of a specific weapon entity.
• New sandboxed cvars: viewmodel_fov, cl_bob_camera, hud_deathnotice_max.
• Connection logging. Each NextClient connection is now logged with name, SteamID, HWID,
  address, version and its verified/compatible state.

Removed / deprecated

• Removed legacy _ncl client detection. ncl_is_next_client is deprecated: it is no longer
  declared in the include and always returns NOT_NEXT_CLIENT. Already-compiled plugins keep working.

v1.5.1 Linux & Windows

Fixed the error "Error! In Not Valid Auth (3)" that occurred when ReAuthCheck was installed

v1.5.0 Linux & Windows

NextClient 2.4.0 support

v1.5.0-beta.3 Linux & Windows

NextClient 2.4.0 support

UPD:
Please be careful, there are critical issues found in this version, it is highly not recommended to use this version for production.

• Commands /say and /say_team are not accepted
• v1.5.0-beta.3 Linux server crashes when restarting

v1.4.0 Linux & Windows

This version introduces support for NextClient 2.3.0 with brand new features:

• Added reliable cryptographic verification of NextClient from the module which provides a high level of guarantees. Now it is safe to trust and grant privileges to players with NextClient 2.3.0 and higher.
• Added ncl_is_using_nextclient native instead of ncl_is_next_client which allows you to check the verification status of the player. This is an example of how you can grant a vip flag for a player who has verified with NextClient:

#include <amxmodx>
#include <next_client_api>

new const VIP_FLAGS[] = "f"; // the vip flags we are providing

public ncl_client_api_ready(id) {
	// Check that the player has verified nextclient
	if(ncl_is_using_nextclient(id) == NCL_USING_VERIFICATED)
		set_user_flags(id, read_flags(VIP_FLAGS));
}

• ncl_is_next_client is deprecated in favor of ncl_is_using_nextclient and will be removed in v2
• Added ncl_get_nextclient_version native to obtain each version part in a granular manner
• Added ncl_get_supported_features native to check the client for support of a particular feature abstracting from the client version
• Added ncl_set_wpn_icon_for_next_deathmsg native to override weapon icons in killfeed lines with custom sprites (since NextClient 2.3.0)
• Added support for rendering of HP values more than 999 (since NextClient 2.3.0)
• Added nclapi_version public cvar

Requirements for linux:

• GLIBC 2.19