Upgrade unbound library

These files were pulled from the 1.6.3 release tarball.

This new version builds against OpenSSL version 1.1 which will be
the default in the new Debian Stable which is due to be released
RealSoonNow (tm).

1 files changed, 907 insertions, 0 deletions

diff --git a/external/unbound/doc/Changelog b/external/unbound/doc/Changelog
index 3b9d50653..8f8d6daea 100644
--- a/external/unbound/doc/Changelog
+++ b/external/unbound/doc/Changelog
@@ -1,3 +1,910 @@
+13 June 2017: Wouter
+	- Fix #1280: Unbound fails assert when response from authoritative
+	  contains malformed qname.  When 0x20 caps-for-id is enabled, when
+	  assertions are not enabled the malformed qname is handled correctly.
+	- tag for 1.6.3
+
+13 April 2017: Wouter
+	- Fix #1250: inconsistent indentation in services/listen_dnsport.c.
+	- tag for 1.6.2rc1
+
+12 April 2017: Wouter
+	- subnet mem value is available in shm, also when not enabled,
+	  to make the struct easier to memmap by other applications,
+	  independent of the configuration of unbound.
+
+12 April 2017: Ralph
+	- Fix #1247: unbound does not shorten source prefix length when
+	  forwarding ECS.
+	- Properly check for allocation failure in local_data_find_tag_datas.
+	- Fix #1249: unbound doesn't return FORMERR to bogus ECS.
+	- Set SHM ECS memory usage to 0 when module not loaded.
+
+11 April 2017: Ralph
+	- Display ECS module memory usage.
+
+10 April 2017: Wouter
+	- harden-algo-downgrade: no also makes unbound more lenient about
+	  digest algorithms in DS records.
+
+10 April 2017: Ralph
+	- Remove ECS option after REFUSED answer.
+	- Fix small memory leak in edns_opt_copy_alloc.
+	- Respip dereference after NULL check.
+	- Zero initialize addrtree allocation.
+	- Use correct identifier for SHM destroy.
+
+7 April 2017: George
+	- Fix pythonmod for cb changes.
+	- Some whitespace fixup.
+
+7 April 2017: Ralph
+	- Unlock view in respip unit test
+
+6 April 2017: Ralph
+	- Generalise inplace callback (de)registration
+	- (de)register inplace callbacks for module id
+	- No unbound-control set_option for ECS options
+	- Deprecated client-subnet-opcode config option
+	- Introduced client-subnet-always-forward config option
+	- Changed max-client-subnet-ipv6 default to 56 (as in RFC)
+	- Removed extern ECS config options
+	- module_restart_next now calls clear on all following modules
+	- Also create ECS module qstate on module_event_pass event
+	- remove malloc from inplace_cb_register
+
+6 April 2017: Wouter
+	- Small fixup for documentation.
+	- iana portlist update
+	- Fix respip for braces when locks arent used.
+	- Fix pythonmod for cb changes.
+
+4 April 2017: Wouter
+	- Fix #1244: document that use of chroot requires trust anchor file to
+	  be under chroot.
+	- iana portlist update
+
+3 April 2017: Ralph
+	- Do not add current time twice to TTL before ECS cache store.
+	- Do not touch rrset cache after ECS cache message generation.
+	- Use LDNS_EDNS_CLIENT_SUBNET as default ECS opcode.
+
+3 April 2017: Wouter
+	- Fix #1217: Add metrics to unbound-control interface showing
+	  crypted, cert request, plaintext and malformed queries (from
+	  Manu Bretelle).
+	- iana portlist update
+
+27 March 2017: Wouter
+	- Remove (now unused) event2 include from dnscrypt code.
+
+24 March 2017: George
+	- Fix to prevent non-referal query from being cached as referal when the
+	  no_cache_store flag was set.
+
+23 March 2017: Wouter
+	- Fix #1239: configure fails to find python distutils if python
+	  prints warning.
+
+22 March 2017: Wouter
+	- Fix #1238: segmentation fault when adding through the remote
+	  interface a per-view local zone to a view with no previous
+	  (configured) local zones.
+	- Fix #1229: Systemd service sandboxing, options in wrong sections.
+
+21 March 2017: Ralph
+	- Merge EDNS Client subnet implementation from feature branch into main
+	  branch, using new EDNS processing framework. 
+
+21 March 2017: Wouter
+	- Fix doxygen for dnscrypt files.
+
+20 March 2017: Wouter
+	- #1217. DNSCrypt support, with --enable-dnscrypt, libsodium and then
+	  enabled in the config file from Manu Bretelle.
+	- make depend, autoconf, remove warnings about statement before var.
+	- lru_demote and lruhash_insert_or_retrieve functions for getdns.
+	- fixup for lruhash (whitespace and header file comment).
+	- dnscrypt tests.
+
+17 March 2017: Wouter
+	- Patch for view functionality for local-data-ptr from Björn Ketelaars.
+	- Fix #1237 - Wrong resolving in chain, for norec queries that get
+	  SERVFAIL returned.
+
+16 March 2017: Wouter
+	- Fix that SHM is not inited if not enabled.
+	- Add trustanchor.unbound CH TXT that gets a response with a number
+	  of TXT RRs with a string like "example.com. 2345 1234" with
+	  the trust anchors and their keytags.
+	- Fix that looped DNAMEs do not cause unbound to spend effort.
+	- trustanchor tags are sorted.  reusable routine to fetch taglist.
+
+13 March 2017: Wouter
+	- testbound understands Deckard MATCH rcode question answer commands.
+	- Fix #1235: Fix too long DNAME expansion produces SERVFAIL instead
+	  of YXDOMAIN + query loop, reported by Petr Spacek.
+
+10 March 2017: Wouter
+	- Fix #1234: shortening DNAME loop produces duplicate DNAME records
+	  in ANSWER section.
+
+9 March 2017: Wouter
+	- --disable-sha1 disables SHA1 support in RRSIG, so from DNSKEY and
+	  DS records.  NSEC3 is not disabled.
+	- fake-sha1 test option; print warning if used.  To make unit tests.
+	- unbound-control list local zone and data commands listed in the
+	  help output.
+
+8 March 2017: Wouter
+	- make depend for build dependencies.
+	- swig version 2.0.1 required.
+	- fix enum conversion warnings
+
+7 March 2017: Wouter
+	- Fix #1230: swig version 2.0.0 is required for pythonmod, with
+	  1.3.40 it crashes when running repeatly unbound-control reload.
+	- Response actions based on IP address from Jinmei Tatuya (Infoblox).
+
+6 March 2017: Wouter
+	- Fix #1229: Systemd service sandboxing in contrib/unbound.service.
+	- iana portlist update
+
+28 February 2017: Ralph
+	- Fix testpkts.c, check if DO bit is set, not only if there is an OPT
+	  record.
+
+28 February 2017: Wouter
+	- For #1227: if we have sha256, set the cipher list to have no
+	  known vulns.
+
+27 February 2017: Wouter
+	- Fix #1227: Fix that Unbound control allows weak ciphersuits.
+	- Fix #1226: provide official 32bit binary for windows.
+
+24 February 2017: Wouter
+	- include sys/time.h for new shm code on NetBSD.
+
+23 February 2017: Wouter
+	- Fix doc/CNAME-basedRedirectionDesignNotes.pdf zone static to
+	  redirect.
+	- Patch from Luiz Fernando Softov for Stats Shared Memory.
+	- unbound-control stats_shm command prints stats using shared memory,
+	  which uses less cpu.
+	- make depend, autoconf, doxygen and lint fixed up.
+
+22 February 2017: Wouter
+	- Fix #1224: Fix that defaults should not fall back to "Program Files
+	  (x86) if Unbound is 64bit by default on windows.
+
+21 February 2017: Wouter
+	- iana portlist update
+
+16 February 2017: Wouter
+	- sldns updated for vfixed and buffer resize indication from getdns.
+
+15 February 2017: Wouter
+	- sldns has ED25519 and ED448 algorithm number and name for display.
+
+14 February 2017: Wouter
+	- tag 1.6.1rc3. -- which became 1.6.1 on 21feb, trunk has 1.6.2
+
+13 February 2017: Wouter
+	- Fix autoconf of systemd check for lack of pkg-config.
+
+10 February 2017: Wouter
+	- Fix pythonmod for typedef changes.
+	- Fix dnstap for warning of set but not used.
+	- tag 1.6.1rc2.
+
+9 February 2017: Wouter
+	- tag 1.6.1rc1.
+
+8 February 2017: Wouter
+	- Fix for type name change and fix warning on windows compile.
+
+7 February 2017: Wouter
+	- Include root trust anchor id 20326 in unbound-anchor.
+
+6 February 2017: Wouter
+	- Fix compile on solaris of the fix to use $host detect.
+
+4 February 2017: Wouter
+	- fix root_anchor test for updated icannbundle.pem lower certificates.
+
+26 January 2017: Wouter
+	- Fix 1211: Fix can't enable interface-automatic if no IPv6 with
+	  more helpful error message.
+
+20 January 2017: Wouter
+	- Increase MAX_MODULE to 16.
+
+19 January 2017: Wouter
+	- Fix to Rename ub_callback_t to ub_callback_type, because POSIX
+	  reserves _t typedefs.
+	- Fix to rename internally used types from _t to _type, because _t
+	  type names are reserved by POSIX.
+	- iana portlist update
+
+12 January 2017: Wouter
+	- Fix to also block meta types 128 through to 248 with formerr. 
+	- Fix #1206: Some view-related commands are missing from 'unbound-control -h'
+
+9 January 2017: Wouter
+	- Fix #1202: Fix code comment that packed_rrset_data is not always
+	  'packed'.
+
+6 January 2017: Wouter
+	- Fix #1201: Fix missing unlock in answer_from_cache error condition.
+
+5 January 2017: Wouter
+	- Fix to return formerr for queries for meta-types, to avoid
+	  packet amplification if this meta-type is sent on to upstream.
+	- Fix #1184: Log DNS replies. This includes the same logging
+	  information that DNS queries and response code and response size,
+	  patch from Larissa Feng.
+	- Fix #1185: Source IP rate limiting, patch from Larissa Feng.
+
+3 January 2017: Wouter
+	- configure --enable-systemd and lets unbound use systemd sockets if
+	  you enable use-systemd: yes in unbound.conf.
+	  Also there are contrib/unbound.socket and contrib/unbound.service:
+	  systemd files for unbound, install them in /usr/lib/systemd/system.
+	  Contributed by Sami Kerola and Pavel Odintsov.
+	- Fix reload chdir failure when also chrooted to that directory.
+
+2 January 2017: Wouter
+	- Fix #1194: Cross build fails when $host isn't `uname` for getentropy.
+
+23 December 2016: Ralph
+	- Fix #1190: Do not echo back EDNS options in local-zone error response.
+	- iana portlist update
+
+21 December 2016: Ralph
+	- Fix #1188: Unresolved symbol 'fake_dsa' in libunbound.so when built
+	  with Nettle
+
+19 December 2016: Ralph
+	- Fix #1191: remove comment about view deletion.
+
+15 December 2016: Wouter
+	- iana portlist update
+	- 64bit is default for windows builds.
+	- Fix inet_ntop and inet_pton warnings in windows compile.
+
+14 December 2016: Wouter
+	- Fix #1178: attempt to fix setup error at end, pop result values
+	  at end of install.
+
+13 December 2016: Wouter
+	- Fix #1182: Fix Resource leak (socket), at startup.
+	- Fix unbound-control and ipv6 only.
+
+9 December 2016: Wouter
+	- Fix #1176: stack size too small for Alpine Linux.
+
+8 December 2016: Wouter
+	- Fix downcast warnings from visual studio in sldns code.
+	- tag 1.6.0rc1 which became 1.6.0 on 15 dec, and trunk is 1.6.1.
+
+7 December 2016: Ralph
+	- Add DSA support for OpenSSL 1.1.0
+	- Fix remote control without cert for LibreSSL
+
+6 December 2016: George
+	- Added generic EDNS code for registering known EDNS option codes,
+	  bypassing the cache response stage and uniquifying mesh states. Four EDNS
+	  option lists were added to module_qstate (module_qstate.edns_opts_*) to
+	  store EDNS options from/to front/back side.
+	- Added two flags to module_qstate (no_cache_lookup, no_cache_store) that
+	  control the modules' cache interactions.
+	- Added code for registering inplace callback functions. The registered
+	  functions can be called just before replying with local data or Chaos,
+	  replying from cache, replying with SERVFAIL, replying with a resolved
+	  query, sending a query to a nameserver. The functions can inspect the
+	  available data and maybe change response/query related data (i.e. append
+	  EDNS options).
+	- Updated Python module for the above.
+	- Updated Python documentation.
+
+5 December 2016: Ralph
+	- Fix #1173: differ local-zone type deny from unset
+	  tag_actions element.
+
+5 December 2016: Wouter
+	- Fix #1170: document that 'inform' local-zone uses local-data.
+
+1 December 2016: Ralph
+	- hyphen as minus fix, by Andreas Schulze
+
+30 November 2016: Ralph
+	- Added local-zones and local-data bulk addition and removal
+	  functionality in unbound-control (local_zones, local_zones_remove,
+	  local_datas and local_datas_remove).
+	- iana portlist update
+
+29 November 2016: Wouter
+	- version 1.6.0 is in the development branch.
+	- braces in view.c around lock statements.
+
+28 November 2016: Wouter
+	- new install-sh.
+
+25 November 2016: Wouter
+	- Fix that with openssl 1.1 control-use-cert: no uses less cpu, by
+	  using no encryption over the unix socket.
+
+22 Novenber 2016: Ralph
+	- Make access-control-tag-data RDATA absolute. This makes the RDATA
+	  origin consistent between local-data and access-control-tag-data.
+	- Fix NSEC ENT wildcard check. Matching wildcard does not have to be a
+	  subdomain of the NSEC owner.
+	- QNAME minimisation uses QTYPE=A, therefore always check cache for
+	  this type in harden-below-nxdomain functionality.
+	- Added unit test for QNAME minimisation + harden below nxdomain
+	  synergy.
+
+22 November 2016: Wouter
+	- iana portlist update.
+	- Fix unit tests for DS hash processing for fake-dsa test option.
+	- patch from Dag-Erling Smorgrav that removes code that relies
+	  on sbrk().
+
+21 November 2016: Wouter
+	- Fix #1158: reference RFC 8020 "NXDOMAIN: There Really Is Nothing
+	  Underneath" for the harden-below-nxdomain option.
+
+10 November 2016: Ralph
+	- Fix #1155: test status code of unbound-control in 04-checkconf,
+	  not the status code from the tee command.
+
+4 November 2016: Ralph
+	- Added stub-ssl-upstream and forward-ssl-upstream options.
+
+4 November 2016: Wouter
+	- configure detects ssl security level API function in the autoconf
+	  manner.  Every function on its own, so that other libraries (eg.
+	  LibreSSL) can develop their API without hindrance.
+	- Fix #1154: segfault when reading config with duplicate zones.
+	- Note that for harden-below-nxdomain the nxdomain must be secure,
+	  this means nsec3 with optout is insufficient.
+
+3 November 2016: Ralph
+	- Set OpenSSL security level to 0 when using aNULL ciphers.
+
+3 November 2016: Wouter
+	- .gitattributes line for githubs code language display.
+	- log-identity: config option to set sys log identity, patch from
+	  "Robin H. Johnson" <robbat2@gentoo.org>
+
+2 November 2016: Wouter
+	- iana portlist update.
+
+31 October 2016: Wouter
+	- Fix failure to build on arm64 with no sbrk.
+	- iana portlist update.
+
+28 October 2016: Wouter
+	- Patch for server.num.zero_ttl stats for count of expired replies,
+	  from Pavel Odintsov.
+
+26 October 2016: Wouter
+	- Fix unit tests for openssl 1.1, with no DSA, by faking DSA, enabled
+	  with the undocumented switch 'fake-dsa'.  It logs a warning.
+
+25 October 2016: Wouter
+	- Fix #1134: unbound-control set_option -- val-override-date: -1 works
+	  immediately to ignore datetime, or back to 0 to enable it again.
+	  The -- is to ignore the '-1' as an option flag.
+
+24 October 2016: Wouter
+	- serve-expired config option: serve expired responses with TTL 0.
+	- g.root-servers.net has AAAA address.
+
+21 October 2016: Wouter
+	- Ported tests for local_cname unit test to testbound framework.
+
+20 October 2016: Wouter
+	- suppress compile warning in lex files.
+	- init lzt variable, for older gcc compiler warnings.
+	- fix --enable-dsa to work, instead of copying ecdsa enable.
+	- Fix DNSSEC validation of query type ANY with DNAME answers.
+	- Fixup query_info local_alias init.
+
+19 October 2016: Wouter
+	- Fix #1130: whitespace in example.conf.in more consistent.
+
+18 October 2016: Wouter
+	- Patch that resolves CNAMEs entered in local-data conf statements that
+	  point to data on the internet, from Jinmei Tatuya (Infoblox).
+	- Removed patch comments from acllist.c and msgencode.c
+	- Added documentation doc/CNAME-basedRedirectionDesignNotes.pdf,
+	  from Jinmei Tatuya (Infoblox).
+	- Fix #1125: unbound could reuse an answer packet incorrectly for
+	  clients with different EDNS parameters, from Jinmei Tatuya.
+	- Fix #1118: libunbound.pc sets strange Libs, Libs.private values.
+	- Added Requires line to libunbound.pc
+	- Please doxygen by modifying mesh.h
+
+17 October 2016: Wouter
+	- Re-fix #839 from view commit overwrite.
+	- Fixup const void cast warning.
+
+12 October 2016: Ralph
+	- Free view config elements.
+
+11 October 2016: Ralph
+	- Added qname-minimisation-strict config option.
+	- iana portlist update.
+	- fix memoryleak logfile when in debug mode.
+
+5 October 2016: Ralph
+	- Added views functionality.
+	- Fix #1117: spelling errors, from Robert Edmonds.
+
+30 September 2016: Wouter
+	- Fix Nits for 1.5.10 reported by Dag-Erling Smorgrav.
+
+29 September 2016: Wouter
+	- Fix #838: 1.5.10 cannot be built on Solaris, undefined PATH_MAX.
+	- Fix #839: Memory grows unexpectedly with large RPZ files.
+	- Fix #840: infinite loop in unbound_munin_ plugin on unowned lockfile.
+	- Fix #841: big local-zone's make it consume large amounts of memory.
+
+27 September 2016: Wouter
+	- tag for 1.5.10 release
+	- trunk contains 1.5.11 in development.
+	- Fix dnstap relaying "random" messages instead of resolver/forwarder
+	  responses, from Nikolay Edigaryev.
+	- Fix #836: unbound could echo back EDNS options in an error response.
+
+20 September 2016: Wouter
+	- iana portlist update.
+	- Fix #835: fix --disable-dsa with nettle verify.
+	- tag for 1.5.10rc1 release.
+
+15 September 2016: Wouter
+	- Fix 883: error for duplicate local zone entry.
+	- Test for openssl init_crypto and init_ssl functions.
+
+15 September 2016: Ralph
+	- fix potential memory leak in daemon/remote.c and nullpointer
+	  dereference in validator/autotrust.
+	- iana portlist update.
+
+13 September 2016: Wouter
+	- Silenced flex-generated sign-unsigned warning print with gcc
+	  diagnostic pragma.
+	- Fix for new splint on FreeBSD.  Fix cast for sockaddr_un.sun_len.
+
+9 September 2016: Wouter
+	- Fix #831: workaround for spurious fread_chk warning against petal.c
+
+5 September 2016: Ralph
+	- Take configured minimum TTL into consideration when reducing TTL
+	  to original TTL from RRSIG.
+
+5 September 2016: Wouter
+	- Fix #829: 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.
+	- Fix #828: missing type in access-control-tag-action redirect results
+	  in NXDOMAIN.
+
+2 September 2016: Wouter
+	- Fix compile with openssl 1.1.0 with api=1.1.0.
+
+1 September 2016: Wouter
+	- RFC 7958 is now out, updated docs for unbound-anchor.
+	- Fix for compile without warnings with openssl 1.1.0.
+	- Fix #826: Fix refuse_non_local could result in a broken response.
+	- iana portlist update.
+
+29 August 2016: Wouter
+	- Fix #777: OpenSSL 1.1.0 compatibility, patch from Sebastian A.
+	  Siewior.
+	- Add default root hints for IPv6 E.ROOT-SERVERS.NET, 2001:500:a8::e.
+
+25 August 2016: Ralph
+	- Clarify local-zone-override entry in unbound.conf.5 
+	
+25 August 2016: Wouter
+	- 64bit build option for makedist windows compile, -w64.
+
+24 August 2016: Ralph
+	- Fix #820: set sldns_str2wire_rr_buf() dual meaning len parameter
+	  in each iteration in find_tag_datas().
+	- unbound.conf.5 entries for define-tag, access-control-tag,
+	  access-control-tag-action, access-control-tag-data, local-zone-tag,
+	  and local-zone-override.
+	  
+23 August 2016: Wouter
+	- Fix #804: unbound stops responding after outage.  Fixes queries
+	  that attempt to wait for an empty list of subqueries.
+	- Fix #804: lower num_target_queries for iterator also for failed
+	  lookups.
+
+8 August 2016: Wouter
+	- Note that OPENPGPKEY type is RFC 7929.
+
+4 August 2016: Wouter
+	- Fix #807: workaround for possible some "unused" function parameters
+	  in test code, from Jinmei Tatuya.
+
+3 August 2016: Wouter
+	- use sendmsg instead of sendto for TFO.
+
+28 July 2016: Wouter
+	- Fix #806: wrong comment removed.
+
+26 July 2016: Wouter
+	- nicer ratelimit-below-domain explanation.
+
+22 July 2016: Wouter
+	- Fix #801: missing error condition handling in
+	  daemon_create_workers().
+	- Fix #802: workaround for function parameters that are "unused"
+	  without log_assert.
+	- Fix #803: confusing (and incorrect) code comment in daemon_cleanup().
+
+20 July 2016: Wouter
+	- Fix typo in unbound.conf.
+
+18 July 2016: Wouter
+	- Fix #798: Client-side TCP fast open fails (Linux).
+
+14 July 2016: Wouter
+	- TCP Fast open patch from Sara Dickinson.
+	- Fixed unbound.doxygen for 1.8.11.
+
+7 July 2016: Wouter
+	- access-control-tag-data implemented. verbose(4) prints tag debug.
+
+5 July 2016: Wouter
+	- Fix dynamic link of anchor-update.exe on windows.
+	- Fix detect of mingw for MXE package build.
+	- Fixes for 64bit windows compile.
+	- Fix #788 for nettle 3.0: Failed to build with Nettle >= 3.0 and
+	  --with-libunbound-only --with-nettle.
+
+4 July 2016: Wouter
+	- For #787: prefer-ip6 option for unbound.conf prefers to send
+	  upstream queries to ipv6 servers.
+	- Fix #787: outgoing-interface netblock/64 ipv6 option to use linux
+	  freebind to use 64bits of entropy for every query with random local
+	  part.
+
+30 June 2016: Wouter
+	- Document always_transparent, always_refuse, always_nxdomain types.
+
+29 June 2016: Wouter
+	- Fix static compile on windows missing gdi32.
+
+28 June 2016: Wouter
+	- Create a pkg-config file for libunbound in contrib.
+
+27 June 2016: Wouter
+	- Fix #784: Build configure assumess that having getpwnam means there
+	  is endpwent function available.
+	- Updated repository with newer flex and bison output.
+
+24 June 2016: Ralph
+	- Possibility to specify local-zone type for an acl/tag pair
+	- Possibility to specify (override) local-zone type for a source address
+	  block
+16 June 2016: Ralph
+	- Decrease dp attempts at each QNAME minimisation iteration
+
+16 June 2016: Wouter
+	- Fix tcp timeouts in tv.usec.
+
+15 June 2016: Wouter
+	- TCP_TIMEOUT is specified in milliseconds.
+	- 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.
+
+14 June 2016: Ralph
+	- QNAME minimisation unit test for dropped QTYPE=A queries.
+
+14 June 2016: Wouter
+	- Fix 775: 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.
+	- Fix 779: Union casting is non-portable.
+	- Fix 780: MAP_ANON not defined in HP-UX 11.31.
+	- Fix 781: prealloc() is an HP-UX system library call.
+
+13 June 2016: Ralph
+	- 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.
+
+13 June 2016: Wouter
+	- Fix #778: unbound 1.5.9: -h segfault (null deref).
+	- Fix directory: fix for unbound-checkconf, it restores cwd.
+
+10 June 2016: Wouter
+	- 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.
+	- keep debug symbols in windows build.
+	- do not delete service.conf on windows uninstall.
+	- document directory immediate fix and allow EXECUTABLE syntax in it
+	  on windows.
+
+9 June 2016: Wouter
+	- Trunk is called 1.5.10 (with previous fixes already in there to 2
+	  june).
+	- 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).
+
+7 June 2016: Ralph
+	- Lookup localzones by taglist from acl.
+	- Possibility to lookup local_zone, regardless the taglist.
+	- Added local_zone/taglist/acl unit test.
+
+7 June 2016: Wouter
+	- Fix #773: Non-standard Python location build failure with pyunbound.
+	- Improve threadsafety for openssl 0.9.8 ecdsa dnssec signatures.
+
+6 June 2016: Wouter
+	- Better help text from -h (from Ray Griffith).
+	- access-control-tag config directive.
+	- local-zone-override config directive.
+	- access-control-tag-action and access-control-tag-data config
+	  directives.
+	- free acl-tags, acltag-action and acltag-data config lists during
+	  initialisation to free up memory for more entries.
+
+3 June 2016: Wouter
+	- Fix to not ignore return value of chown() in daemon startup.
+
+2 June 2016: Wouter
+	- Fix libubound for edns optlist feature.
+	- Fix distinction between free and CRYPTO_free in dsa and ecdsa alloc.
+	- Fix #752: retry resource temporarily unavailable on control pipe.
+	- un-document localzone tags.
+	- tag for release 1.5.9rc1.
+	  And this also became release 1.5.9.
+	- Fix (for 1.5.10): Fix unbound-anchor.exe file location defaults to
+	  Program Files with (x86) appended.
+	- re-documented localzone tags in example.conf.
+
+31 May 2016: Wouter
+	- Fix windows service to be created run with limited rights, as a
+	  network service account, from Mario Turschmann.
+	- compat strsep implementation.
+	- generic edns option parse and store code.
+	- and also generic edns options for upstream messages (and replies).
+	  after parse use edns_opt_find(edns.opt_list, LDNS_EDNS_NSID),
+	  to insert use edns_opt_append(edns, region, code, len, bindata) on
+	  the opt_list passed to send_query, or in edns_opt_inplace_reply.
+
+30 May 2016: Wouter
+	- Fix time in case answer comes from cache in ub_resolve_event().
+	- Attempted fix for #765: _unboundmodule missing for python3.
+
+27 May 2016: Wouter
+	- Fix #770: Small subgroup attack on DH used in unix pipe on localhost
+	  if unbound control uses a unix local named pipe.
+	- Document write permission to directory of trust anchor needed.
+	- Fix #768:  Unbound Service Sometimes Can Not Shutdown
+	  Completely, WER Report Shown Up.  Close handle before closing WSA.
+
+26 May 2016: Wouter
+	- Updated patch from Charles Walker.
+
+24 May 2016: Wouter
+	- disable-dnssec-lame-check config option from Charles Walker.
+	- remove memory leak from lame-check patch.
+	- iana portlist update.
+
+23 May 2016: Wouter
+	- Fix #767:  Reference to an expired Internet-Draft in
+	  harden-below-nxdomain documentation.
+
+20 May 2016: Ralph
+	- No QNAME minimisation fall-back for NXDOMAIN answers from DNSSEC 
+	  signed zones.
+	- iana portlist update.
+
+19 May 2016: Wouter
+	- Fix #766: dns64 should synthesize results on timeout/errors.
+
+18 May 2016: Wouter
+	- Fix #761: DNSSEC LAME false positive resolving nic.club.
+
+17 May 2016: Wouter
+	- trunk updated with output of flex 2.6.0.
+
+6 May 2016: Wouter
+	- Fix memory leak in out-of-memory conditions of local zone add.
+
+29 April 2016: Wouter
+	- Fix sldns with static checking fixes copied from getdns.
+
+28 April 2016: Wouter
+	- Fix #759: 0x20 capsforid no longer checks type PTR, for
+	  compatibility with cisco dns guard.  This lowers false positives.
+
+18 April 2016: Wouter
+	- Fix some malformed reponses to edns queries get fallback to nonedns.
+
+15 April 2016: Wouter
+	- cachedb module event handling design.
+
+14 April 2016: Wouter
+	- cachedb module framework (empty).
+	- iana portlist update.
+
+12 April 2016: Wouter
+	- Fix #753: document dump_requestlist is for first thread.
+
+24 March 2016: Wouter
+	- Document permit-small-holddown for 5011 debug.
+	- Fix #749: unbound-checkconf gets SIGSEGV when use against a
+	  malformatted conf file.
+
+23 March 2016: Wouter
+	- OpenSSL 1.1.0 portability, --disable-dsa configure option.
+
+21 March 2016: Wouter
+	- Fix compile of getentropy_linux for SLES11 servicepack 4.
+	- Fix dnstap-log-resolver-response-messages, from Nikolay Edigaryev.
+	- Fix test for openssl to use HMAC_Update for 1.1.0.
+	- acx_nlnetlabs.m4 to v33, with HMAC_Update.
+	- acx_nlnetlabs.m4 to v34, with -ldl -pthread test for libcrypto.
+	- ERR_remove_state deprecated since openssl 1.0.0.
+	- OPENSSL_config is deprecated, removing.
+
+18 March 2016: Ralph
+	- Validate QNAME minimised NXDOMAIN responses.
+	- If QNAME minimisation is enabled, do cache lookup for QTYPE NS in
+	  harden-below-nxdomain.
+
+17 March 2016: Ralph
+	- Limit number of QNAME minimisation iterations.
+
+17 March 2016: Wouter
+	- Fix #746: Fix unbound sets CD bit on all forwards.
+	  If no trust anchors, it'll not set CD bit when forwarding to another
+	  server.  If a trust anchor, no CD bit on the first attempt to a
+	  forwarder, but CD bit thereafter on repeated attempts to get DNSSEC.
+	- iana portlist update.
+
+16 March 2016: Wouter
+	- Fix ip-transparent for ipv6 on FreeBSD, thanks to Nick Hibma.
+	- Fix ip-transparent for tcp on freebsd.
+
+15 March 2016: Wouter
+	- ip_freebind: yesno option in unbound.conf sets IP_FREEBIND for
+	  binding to an IP address while the interface or address is down.
+
+14 March 2016: Wouter
+	- Fix warnings in ifdef corner case, older or unknown libevent.
+	- Fix compile for ub_event code with older libev.
+
+11 March 2016: Wouter
+	- Remove warning about unused parameter in event_pluggable.c.
+	- Fix libev usage of dispatch return value.
+	- No side effects in tolower() call, in case it is a macro.
+	- For test put free in pluggable api in parenthesis.
+
+10 March 2016: Wouter
+	- Fixup backend2str for libev.
+
+09 March 2016: Willem
+	- User defined pluggable event API for libunbound
+	- Fixup of compile fix for pluggable event API from P.Y. Adi
+	  Prasaja.
+
+09 March 2016: Wouter
+	- Updated configure and ltmain.sh.
+	- Updated L root IPv6 address.
+
+07 March 2016: Wouter
+	- Fix #747: assert in outnet_serviced_query_stop.
+	- iana ports fetched via https.
+	- iana portlist update.
+
+03 March 2016: Wouter
+	- configure tests for the weak attribute support by the compiler.
+
+02 March 2016: Wouter
+	- 1.5.8 release tag
+	- trunk contains 1.5.9 in development.
+	- iana portlist update.
+	- Fix #745: unbound.py - idn2dname throws UnicodeError when idnname
+	  contains trailing dot.
+
+24 February 2016: Wouter
+	- Fix OpenBSD asynclook lock free that gets used later (fix test code).
+	- Fix that NSEC3 negative cache is used when there is no salt.
+
+23 February 2016: Wouter
+	- ub_ctx_set_stub() function for libunbound to config stub zones.
+	- sorted ubsyms.def file with exported libunbound functions.
+
+19 February 2016: Wouter
+	- Print understandable debug log when unusable DS record is seen.
+	- load gost algorithm if digest is seen before key algorithm.
+	- iana portlist update.
+
+17 February 2016: Wouter
+	- Fix that "make install" fails due to "text file busy" error.
+
+16 February 2016: Wouter
+	- Set IPPROTO_IP6 for ipv6 sockets otherwise invalid argument error.
+
+15 February 2016: Wouter
+	- ip-transparent option for FreeBSD with IP_BINDANY socket option.
+	- wait for sendto to drain socket buffers when they are full.
+
+9 February 2016: Wouter
+	- Test for type OPENPGPKEY.
+	- insecure-lan-zones: yesno config option, patch from Dag-Erling
+	  Smørgrav.
+
+8 February 2016: Wouter
+	- Fix patch typo in prevuous commit for 734 from Adi Prasaja.
+	- RR Type CSYNC support RFC 7477, in debug printout and config input.
+	- RR Type OPENPGPKEY support (draft-ietf-dane-openpgpkey-07).
+
+29 January 2016: Wouter
+	- Neater cmdline_verbose increment patch from Edgar Pettijohn.
+
+27 January 2016: Wouter
+	- Made netbsd sendmsg test nonfatal, in case of false positives.
+	- Fix #741: log message for dnstap socket connection is more clear.
+
+26 January 2016: Wouter
+	- Fix #734: chown the pidfile if it resides inside the chroot.
+	- Use arc4random instead of random in tests (because it is
+	  available, possibly as compat, anyway).
+	- Fix cmsg alignment for argument to sendmsg on NetBSD.
+	- Fix that unbound complains about unimplemented IP_PKTINFO for
+	  sendmsg on NetBSD (for interface-automatic).
+
+25 January 2016: Wouter
+	- Fix #738: Swig should not be invoked with CPPFLAGS.
+
+19 January 2016: Wouter
+	- Squelch 'cannot assign requested address' log messages unless
+	  verbosity is high, it was spammed after network down.
+
+14 January 2016: Wouter
+	- Fix to simplify empty string checking from Michael McConville.
+	- iana portlist update.
+
+12 January 2016: Wouter
+	- Fix #734: Do not log an error when the PID file cannot be chown'ed.
+	  Patch from Simon Deziel.
+
+11 January 2016: Wouter
+	- Fix test if -pthreads unused to use better grep for portability.
+
+06 January 2016: Wouter
+	- Fix mingw crosscompile for recent mingw.
+	- Update aclocal, autoconf output with new versions (1.15, 2.4.6).
+
+05 January 2016: Wouter
+	- #731: tcp-mss, outgoing-tcp-mss options for unbound.conf, patch
+	  from Daisuke Higashi.
+	- Support RFC7686: handle ".onion" Special-Use Domain. It is blocked
+	  by default, and can be unblocked with "nodefault" localzone config.
+
+04 January 2016: Wouter
+	- Define DEFAULT_SOURCE together with BSD_SOURCE when that is defined,
+	  for Linux glibc 2.20.
+	- Fixup contrib/aaaa-filter-iterator.patch for moved contents in the
+	  source code, so it applies cleanly again.  Removed unused variable
+	  warnings.
+
 15 December 2015: Ralph
 	- Fix #729: omit use of escape sequences in echo since they are not 
 	  portable (unbound-control-setup).