Created attachment 175225 [details]
patch to update

In this release there is a fix for long downtime after connectivity
loss, which was a longstanding unsolved issue.  Features for tcp, TCP
Fast Open and timeout pressure to close connections when the tcp
connections are getting full.  Option to use ipv6 /64 for extra entropy.


Features
- Create a pkg-config file for libunbound in contrib.
- TCP Fast open patch from Sara Dickinson.
- Finegrained localzone control with define-tag, access-control-tag,
  access-control-tag-action, access-control-tag-data, local-zone-tag, and
  local-zone-override. And added types always_transparent, always_refuse,
  always_nxdomain with that.
- If more than half of tcp connections are in use, a shorter timeout
  is used (200 msec, vs 2 minutes) to pressure tcp for new connects.
- [bugzilla: 787 ] Fix #787: outgoing-interface netblock/64 ipv6
  option to use linux freebind to use 64bits of entropy for every query
  with random local part.
- For #787: prefer-ip6 option for unbound.conf prefers to send
  upstream queries to ipv6 servers.
- Add default root hints for IPv6 E.ROOT-SERVERS.NET, 2001:500:a8::e.
- keep debug symbols in windows build.

Bug Fixes
- [bugzilla: 778 ] Fix unbound 1.5.9: -h segfault (null deref).
- Fix unbound-anchor.exe file location defaults to Program Files with (x86) appended.
- Fix to not ignore return value of chown() in daemon startup.
- Better help text from -h (from Ray Griffith).
- [bugzilla: 773 ] Fix Non-standard Python location build failure with pyunbound.
- Improve threadsafety for openssl 0.9.8 ecdsa dnssec signatures.
- Revert fix for NetworkService account on windows due to breakage it causes.
- Fix that windows install will not overwrite existing service.conf
  file (and ignore gui config choices if it exists).
- And delete service.conf.shipped on uninstall.
- In unbound.conf directory: dir immediately changes to that
  directory, so that include: file below that is relative to that
  directory. With chroot, make the directory an absolute path inside chroot
- do not delete service.conf on windows uninstall.
- document directory immediate fix and allow EXECUTABLE syntax in it
  on windows.
- Fix directory: fix for unbound-checkconf, it restores cwd.
- Use QTYPE=A for QNAME minimisation.
- Keep track of number of time-outs when performing QNAME
  minimisation. Stop minimising when number of time-outs for a QNAME/QTYPE
  pair is more than three.
- [bugzilla: 775 ] Fix unbound-host and unbound-anchor crash on
  windows, ignore null delete for wsaevent.
- Fix spelling in freebind option man page text.
- Fix windows link of ssl with crypt32.
- [bugzilla: 779 ] Fix Union casting is non-portable.
- [bugzilla: 780 ] Fix MAP_ANON not defined in HP-UX 11.31.
- [bugzilla: 781 ] Fix prealloc() is an HP-UX system library call.
- Decrease dp attempts at each QNAME minimisation iteration
- [bugzilla: 784 ] Fix Build configure assumess that having getpwnam
  means there is endpwent function available.
- Updated repository with newer flex and bison output.
- Fix static compile on windows missing gdi32.
- Fix dynamic link of anchor-update.exe on windows.
- Fix detect of mingw for MXE package build.
- Fixes for 64bit windows compile.
- [bugzilla: 788 ] Fix for nettle 3.0: Failed to build with Nettle > 3.0
  and --with-libunbound-only --with-nettle.
- Fixed unbound.doxygen for 1.8.11.
- [bugzilla: 798 ] Fix Client-side TCP fast open fails (Linux).
- [bugzilla: 801 ] Fix missing error condition handling in daemon_create_workers().
- [bugzilla: 802 ] Fix workaround for function parameters that are "unused" without log_assert.
- [bugzilla: 803 ] Fix confusing (and incorrect) code comment in daemon_cleanup().
- [bugzilla: 806 ] Fix wrong comment removed.
- use sendmsg instead of sendto for TFO.
- [bugzilla: 807 ] Fix workaround for possible some "unused" function
  parameters in test code, from Jinmei Tatuya.
- Note that OPENPGPKEY type is RFC 7929.
- [bugzilla: 804 ] Fix #804: unbound stops responding after outage.
  Fixes queries that attempt to wait for an empty list of subqueries.
- Fix for #804: lower num_target_queries for iterator also for failed lookups.
- [bugzilla: 820 ] Fix set sldns_str2wire_rr_buf() dual meaning len
  parameter in each iteration in find_tag_datas().
- [bugzilla: 777 ] Fix OpenSSL 1.1.0 compatibility, patch from Sebastian A. Siewior.
- RFC 7958 is now out, updated docs for unbound-anchor.
- Fix for compile without warnings with openssl 1.1.0.
- [bugzilla: 826 ] Fix refuse_non_local could result in a broken response.
- iana portlist update.
- Fix compile with openssl 1.1.0 with api=1.1.0.
- [bugzilla: 829 ] Fix doc of sldns_wire2str_rdata_buf() return value
  has an off-by-one typo, from Jinmei Tatuya (Infoblox).
- Fix incomplete prototypes reported by Dag-Erling Smørgrav.
- [bugzilla: 828 ] Fix missing type in access-control-tag-action
  redirect results in NXDOMAIN.
- Take configured minimum TTL into consideration when reducing TTL to
  original TTL from RRSIG.
- [bugzilla: 831 ] Fix workaround for spurious fread_chk warning
  against petal.c
- Silenced flex-generated sign-unsigned warning print with gcc
  diagnostic pragma.
- Fix for new splint on FreeBSD. Fix cast for sockaddr_un.sun_len.
- fix potential memory leak in daemon/remote.c and nullpointer
  dereference in validator/autotrust.
- [bugzilla: 883 ] Fix error for duplicate local zone entry.
- [bugzilla: 835 ] Fix --disable-dsa with nettle verify.