Major SPEC rewrite;
Compiler flags conformed to the guideline;
Patches refreshed;
Remove obsoleted syslog.target in systemd units;
Add ExecStartPre to units to ensure tmpdirs are available before start;
Add new systemd+sysv files for redis-sentinel;
Use jemalloc instead of tcmalloc as memory allocator;
Tests enabled(not verified in Koji yet);
More stricted directory permissions;
Move back %_sbindir binaries;
Use redis-prefix for some files;
