This page is still a work-in-progress, incomplete and barely edited, as SourceMod 1.7 has not been released yet

Changelog

Rewrote internal Steam auth ID handling
- admins.cfg now supports Steam2, Steam3, and SteamID 64 formats for the Steam auth provider.
- admins-simple.ini now supports Steam3 auth IDs in addition to Steam2 IDs.
- Command targeting now supports both Steam3 auth IDs in addition to Steam2 IDs.
SDKTools' gamerules gamedata is now less likely to break on updates.
Fixed crash with sm_dump_admcache on Windows.
Fixed SDKHooks causing crash on player join/leave or plugin load/unload if gamedata missing.

Added new SourcePawn Transitional Syntax.
- New work-in-progress API doc page.
SDKHooks - Added Blocked and OnTakeDamage_Alive hook types.
Many more File natives now support Valve FS.
Added SetFilePermissions native.
Added API for iterating StringMaps (formerly "tries").
Added natives for accessing command line parameters.
CloseHandle (or delete) on INVALID_HANDLE is now a no-op, instead of an error.
GetClientAuthString is now deprecated. Use GetClientAuthId instead.
Added OnCoreMapEnd to extension interface.
TFHoliday updates no longer require a plugin recompile.
Added support for (entity) CLASSPTR and EDICT Prop_Data fields with GetEntPropEnt and SetEntPropEnt.
Added support for custom default values with GetEvent* natives, rather than using ""/0 for unset fields.
Removed old profiler, and added new, pluggable profiler (with hooks to VProf).
SourceMod now uses some C++11 and has newer compiler requirements.
Added --disable-auto-versioning option to ambuild configure script.

SourceMod 1.7.0 Release Notes