HAProxy 1.6.15 was released on 2019/10/25. It added 109 new commits
after version 1.6.14.

These are essentially the same fixes that went into 1.7.12 (as I said in
the other thread, 1.6 and 1.7 were very similar). The last 1.6 was even
3 months older than the latest 1.7, so it's about time to turn it to
"critical fixes only" status.

I've seen a bunch of 1.6 in field, I know that some are still running at
various places (this version is rock solid by now), no need to worry, we
can keep it in this state for one or two extra years if needed. Having
less fixes to deal with also means easier releases when required.

If you're running on 1.6.14 and never faced an issue I'm not even sure
it's worth upgrading. The major issues there concern acl/map managements,
or traffic patterns that are either easily met or irrelevant to your use
case. However if you deploy new instances or maintain packages, better
stay on the safe side and deploy the last one. Similarly if you're running
on a snapshot, at least you can update to a release now. Please have a look
at the changelog below for more details.

Please find the usual URLs below :
   Site index       : http://www.haproxy.org/
   Discourse        : http://discourse.haproxy.org/
   Slack channel    : https://slack.haproxy.org/
   Issue tracker    : https://github.com/haproxy/haproxy/issues
   Sources          : http://www.haproxy.org/download/1.6/src/
   Git repository   : http://git.haproxy.org/git/haproxy-1.6.git/
   Git Web browsing : http://git.haproxy.org/?p=haproxy-1.6.git
   Changelog        : http://www.haproxy.org/download/1.6/src/CHANGELOG
   Cyril's HTML doc : http://cbonte.github.io/haproxy-dconv/

Complete changelog :
Aurélien Nephtali (1):
      CLEANUP: ssl: Remove a duplicated #include

Baptiste Assmann (1):
      BUG/MEDIUM: tcp-check: single connect rule can't detect DOWN servers

Christopher Faulet (19):
      BUG/MEDIUM: buffer: Fix the wrapping case in bo_putblk
      BUG/MINOR: http: Return an error in proxy mode when url2sa fails
      BUG/MINOR: checks: Fix check->health computation for flapping servers
      BUG/MINOR: config: Copy default error messages when parsing of a backend 
      BUG/MAJOR: stream-int: Update the stream expiration date in 
      BUG/MINOR: check: Wake the check task if the check is finished in 
      BUG/MAJOR: stats: Fix how huge POST data are read from the channel
      BUG/MINOR: http: Call stream_inc_be_http_req_ctr() only one time per 
      BUG/MEDIUM: proto-http: Always start the parsing if there is no outgoing 
      BUG/MINOR: acl: Fix memory leaks when an ACL expression is parsed
      MINOR: config: Test validity of tune.maxaccept during the config parsing
      CLEANUP: config: Don't alter listener->maxaccept when nbproc is set to 1
      BUG/MEDIUM: hlua: Check the calling direction in lua functions of the 
HTTP class
      MINOR: hlua: Don't set request analyzers on response channel for lua 
      MINOR: hlua: Add a flag on the lua txn to know in which context it can be 
      BUG/MINOR: hlua: Only execute functions of HTTP class if the txn is HTTP 
      BUG/MINOR: lua: Set right direction and flags on new HTTP objects
      BUG/MEDIUM: lb-chash: Fix the realloc() when the number of nodes is 
      BUG/MEDIUM: lb-chash: Ensure the tree integrity when server weight is 

Cyril Bonté (3):
      BUG/MINOR: force-persist and ignore-persist only apply to backends
      DOC: log: more than 2 log servers are allowed
      BUG/MEDIUM: lua: socket timeouts are not applied

David Carlier (1):
      BUG/MEDIUM: da: cast the chunk to string.

Dragan Dosen (2):
      BUG/MINOR: map: correctly track reference to the last ref_elt being dumped
      BUG/MEDIUM: 51d: fix possible segfault on deinit_51degrees()

Frédéric Lécaille (2):
      BUG/MINOR: lua: Segfaults with wrong usage of types.
      BUG/MINOR: lua: Bad HTTP client request duration.

Jérôme Magnin (3):
      DOC: clarify the scope of ssl_fc_is_resumed
      DOC: Describe routing impact of using interface keyword on bind lines
      BUG/MINOR: server: don't always trust srv_check_health when loading a 
server state

Kevin Zhu (1):
      BUG/MINOR: deinit: tcp_rep.inspect_rules not deinit, add to deinit

Krisztian Kovacs (1):
      BUG/MEDIUM: namespace: close open namespaces during soft shutdown

Lukas Tribus (3):
      DOC: don't suggest using http-server-close
      DOC: fix reference to map files in MAINTAINERS
      DOC: restore note about "independant" typo

Moemen MHEDHBI (1):
      DOC: Update configuration doc about the maximum number of stick counters.

Olivier Houchard (6):
      BUG/MEDIUM: hlua: Make sure we drain the output buffer when done.
      BUG/MEDIUM: buffers: Make sure we don't wrap in 
      MINOR: server: Use memcpy() instead of strncpy().
      MINOR: cfgparse: Write 130 as 128 as 0x82 and 0x80.
      BUG/MEDIUM: sample: Don't treat SMP_T_METH as SMP_T_STR.
      BUG/MEDIUM: stream: Don't forget to free s->unique_id in stream_free().

Patrick Hemmer (1):
      BUG/MEDIUM: lua: reset lua transaction between http requests

Ricardo Nabinger Sanchez (1):
      BUG/MAJOR: checks: segfault during tcpcheck_main

Thierry FOURNIER (9):
      BUG/MINOR: lua: return bad error messages
      BUG/MEDIUM: lua/socket: Length required read doesn't work
      MINOR: task/notification: Is notifications registered ?
      BUG/MEDIUM: lua/socket: wrong scheduling for sockets
      BUG/MAJOR: lua: Dead lock with sockets
      BUG/MEDIUM: lua/socket: Notification error
      BUG/MEDIUM: lua/socket: Sheduling error on write: may dead-lock
      BUG/MEDIUM: lua/socket: Buffer error, may segfault
      BUG/MEDIUM: lua: possible CLOSE-WAIT state with '\n' headers

Thierry Fournier (3):
      MINOR/BUILD: fix Lua build on Mac OS X
      BUG/MINOR: lua: the function returns anything
      BUG/MINOR: lua funtion hlua_socket_settimeout don't check negative values

Tim Duesterhus (13):
      BUG/MINOR: lua: Fix default value for pattern in Socket.receive
      DOC: lua: Fix typos in comments of hlua_socket_receive
      BUG/MINOR: lua: Fix return value of Socket.settimeout
      CLEANUP: sample: Fix comment encoding of sample.c
      CLEANUP: sample: Fix outdated comment about sample casts functions
      BUG/MINOR: sample: Fix output type of c_ipv62ip
      CLEANUP: Fix typo in ARGT_MSK6 comment
      BUG/MEDIUM: standard: Fix memory leak in str2ip2()
      BUG/MAJOR: channel: Fix crash when trying to read from a closed socket
      BUG/MINOR: stick_table: Prevent conn_cur from underflowing
      BUG/MEDIUM: compression: Set Vary: Accept-Encoding for compressed 
      BUG/MINOR: lua: Properly initialize the buffer's fields for string 
samples in hlua_lua2(smp|arg)
      BUG/MINOR: sample: Make the `field` converter compatible with `-m found`

William Lallemand (2):
      BUG/MAJOR: map: fix a segfault when using http-request set-map
      BUG/MINOR: ssl: abort on sni allocation failure

Willy Tarreau (35):
      BUG/MEDIUM: stream: properly handle client aborts during redispatch
      BUG/MINOR: poll: too large size allocation for FD events
      BUG/MINOR: config: don't emit a warning when global stats is incompletely 
      BUILD/MINOR: fix Lua build on Mac OS X (again)
      MINOR: log: stop emitting alerts when it's not possible to write on the 
      BUILD/BUG: enable -fno-strict-overflow by default
      BUG/MINOR: config: disable http-reuse on TCP proxies
      BUG/MINOR: ssl/lua: prevent lua from affecting automatic maxconn 
      BUG/MEDIUM: stream-int: don't immediately enable reading when the buffer 
was reportedly full
      BUG/MEDIUM: stats: don't ask for more data as long as we're responding
      BUG/MINOR: config: stick-table is not supported in defaults section
      BUG/MEDIUM: queue: prevent a backup server from draining the proxy's 
      BUG/MINOR: tools: fix set_net_port() / set_host_port() on IPv4
      BUG/MINOR: backend: don't use url_param_name as a hint for BE_LB_ALGO_PH
      BUG/MINOR: backend: balance uri specific options were lost across defaults
      BUG/MINOR: backend: BE_LB_LKUP_CHTREE is a value, not a bit
      BUG/MINOR: stream: don't close the front connection when facing a backend 
      BUG/MAJOR: config: verify that targets of track-sc and stick rules are 
      BUG/MINOR: config: make sure to count the error on incorrect 
track-sc/stick rules
      BUG/MAJOR: stream: avoid double free on unique_id
      BUG/MINOR: http/counters: fix missing increment of fe->srv_aborts
      BUG/MINOR: http-rules: mention "deny_status" for "deny" in the error 
      BUG/MEDIUM: http: also reject messages where "chunked" is missing from 
      BUG/MEDIUM: tcp-check: unbreak multiple connect rules again
      BUILD: makefile: work around an old bug in GNU make-3.80
      BUILD: makefile: use :space: instead of digits to count commits
      BUILD: makefile: do not rely on shell substitutions to determine git 
      BUG/MEDIUM: pattern: assign pattern IDs after checking the config validity
      BUG/MEDIUM: maps: only try to parse the default value when it's present
      BUG/MINOR: acl: properly detect pattern type SMP_T_ADDR
      BUG/MAJOR: map/acl: real fix segfault during show map/acl on CLI
      DOC: improve the wording in CONTRIBUTING about how to document a bug fix
      BUILD/MINOR: ssl: silence a build warning about const and 'cipher'
      BUG/MEDIUM: vars: make sure the scope is always valid when accessing vars
      BUG/MINOR: stick-table: fix an incorrect 32 to 64 bit key conversion

sada (1):
      BUG/MINOR: lua: Socket.send threw runtime error: 'close' needs 1 


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