See http://lists.opensuse.org/opensuse-factory/2013-09/msg00022.html
with references to the upstream release schedule of Samba 4.1.0

4.1.0 RC 3 is scheduled for September 11 and GA for September 27.

- Define the source URL differently in the case of a release candidate.

- Update to 4.1.0rc2.
+ Add vfs_btrfs module.
+ Add support for server-side copy operations via the
SMB2 FSCTL_SRV_COPYCHUNK request.
+ Fix replication with --domain-crictical-only to fill in backlinks;
(bso#9029).
+ Windows 8 Roaming profiles fail; (bso#9678).
+ Fix crash of winbind after "ls -l /usr/local/samba/var/locks/sysvol";
(bso#9820).
+ Windows error 0x800700FE when copying files with xattr names containing
":"; (bso#9992).
+ Do not delete an existing valid credential cache (s3-winbind); (bso#9994).
+ Fix segfault while reading incomplete session info; (bso#10003).
+ Missing integer wrap protection in EA list reading can cause server to
loop with DOS (CVE-2013-4124); (bso#10010).
+ Fix a 100% loop at shutdown time (smbd); (bso#10013).
+ Fix/improve debug options; (bso#10015).
+ Rename regedit to samba-regedit; (bso#10040).
+ Remove obsolete swat manpage and references; (bso#10041).
+ Fix crashes in socket_get_local_addr(); (bso#10042).
+ Allow to change the default location for Kerberos credential caches;
(bso#10043).
+ Remove a redundant inlined substitution of ACLs; (bso#10045).
+ nsswitch: Add OPT_KRB5CCNAME to avoid an error message; (bso#10048).
+ dsdb improvements; (bso#10056).
+ Linux kernel oplock breaks can miss signals; (bso#10064).