Just a quick note to spread the word... A new rule updates tarball (1083703) for all 3.3.x versions has been pushed manually by Daryl, about 16 hours ago.
The new rules tarball includes the fix of meta-ing out, zeroing the affected sub-rules (see bug 6558 comment 3 [1]) causing an issue with re2c when compiled under some very specific and still obscure circumstances. [1] https://issues.apache.org/SpamAssassin/show_bug.cgi?id=6558 -- char *t="\10pse\0r\0dtu\0.@ghno\x4e\xc8\x79\xf4\xab\x51\x8a\x10\xf4\xf4\xc4"; main(){ char h,m=h=*t++,*x=t+2*h,c,i,l=*x,s=0; for (i=0;i<l;i++){ i%8? c<<=1: (c=*++x); c&128 && (s+=h); if (!(h>>=1)||!t[s+h]){ putchar(t[s]);h=m;s=0; }}}