- Security Update 2010-001 (Snow Leopard) (21.90 MB, Requires Mac OS X 10.6.2)
- Security Update 2010-001 Client (Leopard) (159.58 MB, Requires Mac OS X 10.5.8)
- Security Update 2010-001 Server (Leopard) (248.11 MB, Requires Mac OS X 10.5.8)
Apple typically rolls security updates into its Mac OS X updates as those are released, including separate security-only updates for earlier OS X versions no longer seeing major changes. The release of a security-only update for Snow Leopard suggests that Apple is not planning to release Mac OS X 10.6.3 in the near future, having only just begun seeding versions of it to developers for testing.