So this compiles with 26 warnings, and it wasn't updated for the new syntax.
Code:
SourcePawn Compiler 1.10.0.6490
Copyright (c) 1997-2006 ITB CompuPhase
Copyright (c) 2004-2018 AlliedModders LLC
updater/plugins.sp(41) : warning 213: tag mismatch
updater/plugins.sp(55) : warning 213: tag mismatch
updater/plugins.sp(84) : warning 213: tag mismatch
updater/plugins.sp(87) : warning 213: tag mismatch
updater/plugins.sp(90) : warning 213: tag mismatch
updater/plugins.sp(93) : warning 213: tag mismatch
updater/plugins.sp(128) : warning 213: tag mismatch
updater/plugins.sp(135) : warning 213: tag mismatch
updater/plugins.sp(142) : warning 213: tag mismatch
updater/plugins.sp(149) : warning 213: tag mismatch
updater/plugins.sp(156) : warning 213: tag mismatch
updater/download_socket.sp(41) : warning 213: tag mismatch
updater/download_socket.sp(44) : warning 213: tag mismatch
updater/download_socket.sp(47) : warning 213: tag mismatch
updater/download_socket.sp(50) : warning 213: tag mismatch
updater/download_socket.sp(62) : warning 213: tag mismatch
updater/download_socket.sp(73) : warning 213: tag mismatch
updater/download_socket.sp(104) : warning 213: tag mismatch
updater/download_socket.sp(134) : warning 213: tag mismatch
updater/download_socket.sp(161) : warning 213: tag mismatch
updater/download_socket.sp(166) : warning 213: tag mismatch
updater/download_socket.sp(193) : warning 213: tag mismatch
updater/download.sp(64) : warning 213: tag mismatch
updater/download.sp(127) : warning 213: tag mismatch
updater.sp(110) : warning 234: symbol "FCVAR_PLUGIN" is marked as deprecated: No logic using this flag ever existed in a released game. It only ever appeared in the first hl2sdk.
updater.sp(114) : warning 234: symbol "FCVAR_PLUGIN" is marked as deprecated: No logic using this flag ever existed in a released game. It only ever appeared in the first hl2sdk.
Code size: 31300 bytes
Data size: 8928 bytes
Stack/heap size: 16384 bytes
Total requirements: 56612 bytes
26 Warnings.
Updated syntax. Fixed all the warnings so it compiles with no warnings. No error in my sourcemod logs.