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[src/trunk]: src/external/mpl/bind/dist Import bind-9.16.20



details:   https://anonhg.NetBSD.org/src/rev/465b1231b17c
branches:  trunk
changeset: 1023008:465b1231b17c
user:      christos <christos%NetBSD.org@localhost>
date:      Thu Aug 19 11:45:12 2021 +0000

description:
Import bind-9.16.20

        --- 9.16.20 released ---

5689.   [security]      An assertion failure occurred when named attempted to
                        send a UDP packet that exceeded the MTU size, if
                        Response Rate Limiting (RRL) was enabled.
                        (CVE-2021-25218) [GL #2856]

5688.   [bug]           Zones using KASP and inline-signed zones failed to apply
                        changes from the unsigned zone to the signed zone under
                        certain circumstances. This has been fixed. [GL #2735]

5687.   [bug]           "rndc reload <zonename>" could trigger a redundant
                        reload for an inline-signed zone whose zone file was not
                        modified since the last "rndc reload". This has been
                        fixed. [GL #2855]

5686.   [func]          The number of internal data structures allocated for
                        each zone was reduced. [GL #2829]

5685.   [bug]           named failed to check the opcode of responses when
                        performing zone refreshes, stub zone updates, and UPDATE
                        forwarding. This has been fixed. [GL #2762]

5682.   [bug]           Some changes to "zone-statistics" settings were not
                        properly processed by "rndc reconfig". This has been
                        fixed. [GL #2820]

5681.   [func]          Relax the checks in the dns_zone_cdscheck() function to
                        allow CDS and CDNSKEY records in the zone that do not
                        match an existing DNSKEY record, as long as the
                        algorithm matches. This allows a clean rollover from one
                        provider to another in a multi-signer DNSSEC
                        configuration. [GL #2710]

5679.   [func]          Thread affinity is no longer set. [GL #2822]

5678.   [bug]           The "check DS" code failed to release all resources upon
                        named shutdown when a refresh was in progress. This has
                        been fixed. [GL #2811]

5672.   [bug]           Authentication of rndc messages could fail if a
                        "controls" statement was configured with multiple key
                        algorithms for the same listener. This has been fixed.
                        [GL #2756]

        --- 9.16.19 released ---

5671.   [bug]           A race condition could occur where two threads were
                        competing for the same set of key file locks, leading to
                        a deadlock. This has been fixed. [GL #2786]

5670.   [bug]           create_keydata() created an invalid placeholder keydata
                        record upon a refresh failure, which prevented the
                        database of managed keys from subsequently being read
                        back. This has been fixed. [GL #2686]

5669.   [func]          KASP support was extended with the "check DS" feature.
                        Zones with "dnssec-policy" and "parental-agents"
                        configured now check for DS presence and can perform
                        automatic KSK rollovers. [GL #1126]

5668.   [bug]           Rescheduling a setnsec3param() task when a zone failed
                        to load on startup caused a hang on shutdown. This has
                        been fixed. [GL #2791]

5667.   [bug]           The configuration-checking code failed to account for
                        the inheritance rules of the "dnssec-policy" option.
                        This has been fixed. [GL #2780]

5666.   [doc]           The safe "edns-udp-size" value was tweaked to match the
                        probing value from BIND 9.16 for better compatibility.
                        [GL #2183]

5665.   [bug]           If nsupdate sends an SOA request and receives a REFUSED
                        response, it now fails over to the next available
                        server. [GL #2758]

5664.   [func]          For UDP messages larger than the path MTU, named now
                        sends an empty response with the TC (TrunCated) bit set.
                        In addition, setting the DF (Don't Fragment) flag on
                        outgoing UDP sockets was re-enabled. [GL #2790]

5662.   [bug]           Views with recursion disabled are now configured with a
                        default cache size of 2 MB unless "max-cache-size" is
                        explicitly set. This prevents cache RBT hash tables from
                        being needlessly preallocated for such views. [GL #2777]

5661.   [bug]           Change 5644 inadvertently introduced a deadlock: when
                        locking the key file mutex for each zone structure in a
                        different view, the "in-view" logic was not considered.
                        This has been fixed. [GL #2783]

5658.   [bug]           Increasing "max-cache-size" for a running named instance
                        (using "rndc reconfig") did not cause the hash tables
                        used by cache databases to be grown accordingly. This
                        has been fixed. [GL #2770]

5655.   [bug]           Signed, insecure delegation responses prepared by named
                        either lacked the necessary NSEC records or contained
                        duplicate NSEC records when both wildcard expansion and
                        CNAME chaining were required to prepare the response.
                        This has been fixed. [GL #2759]

5653.   [bug]           A bug that caused the NSEC3 salt to be changed on every
                        restart for zones using KASP has been fixed. [GL #2725]

        --- 9.16.18 released ---

5660.   [bug]           The configuration-checking code failed to account for
                        the inheritance rules of the "key-directory" option.
                        [GL #2778]

5659.   [bug]           When preparing DNS responses, named could replace the
                        letters 'W' (uppercase) and 'w' (lowercase) with '\000'.
                        This has been fixed. [GL #2779]

        --- 9.16.17 released ---

5652.   [bug]           A copy-and-paste error in change 5584 caused the
                        IP_DONTFRAG socket option to be enabled instead of
                        disabled. This has been fixed. [GL #2746]

5651.   [func]          Refactor zone dumping to be processed asynchronously via
                        the uv_work_t thread pool API. [GL #2732]

5650.   [bug]           Prevent a crash that could occur if serve-stale was
                        enabled and a prefetch was triggered during a query
                        restart. [GL #2733]

5649.   [bug]           If a query was answered with stale data on a server with
                        DNS64 enabled, an assertion could occur if a non-stale
                        answer arrived afterward. [GL #2731]

5648.   [bug]           The calculation of the estimated IXFR transaction size
                        in dns_journal_iter_init() was invalid. [GL #2685]

5644.   [bug]           Fix a race condition in reading and writing key files
                        for zones using KASP and configured in multiple views.
                        [GL #1875]

5643.   [cleanup]       "make install" no longer creates an empty
                        ${localstatedir}/run directory. [GL #2709]

5642.   [bug]           Zones which are configured in multiple views with
                        different values set for "dnssec-policy" and with
                        identical values set for "key-directory" are now
                        detected and treated as a configuration error.
                        [GL #2463]

5641.   [bug]           Address a potential memory leak in
                        dst_key_fromnamedfile(). [GL #2689]

5639.   [bug]           Check that the first and last SOA record of an AXFR are
                        consistent. [GL #2528]

5638.   [bug]           Improvements related to network manager/task manager
                        integration:
                        - isc_managers_create() and isc_managers_destroy()
                          functions were added to handle setup and teardown of
                          netmgr, taskmgr, timermgr, and socketmgr, since these
                          require a precise order of operations now.
                        - Event queue processing is now quantized to prevent
                          infinite looping.
                        - The netmgr can now be paused from within a netmgr
                          thread.
                        - Deadlocks due to a conflict between netmgr's
                          pause/resume and listen/stoplistening operations were
                          fixed.
                        [GL #2654]

5633.   [doc]           The "inline-signing" option was incorrectly described as
                        being inherited from the "options"/"view" levels and was
                        incorrectly accepted at those levels without effect.
                        This has been fixed. [GL #2536]

5624.   [func]          Task manager events are now processed inside network
                        manager loops. The task manager no longer needs its own
                        set of worker threads, which improves resolver
                        performance. [GL #2638]

        --- 9.16.16 released ---

5637.   [func]          Change the default value of the "max-ixfr-ratio" option
                        to "unlimited". [GL #2671]

5636.   [bug]           named and named-checkconf did not report an error when
                        multiple zones with the "dnssec-policy" option set were
                        using the same zone file. This has been fixed.
                        [GL #2603]

5635.   [bug]           Journal compaction could fail when a journal with
                        invalid transaction headers was not detected at startup.
                        This has been fixed. [GL #2670]

5634.   [bug]           If "dnssec-policy" was active and a private key file was
                        temporarily offline during a rekey event, named could
                        incorrectly introduce replacement keys and break a
                        signed zone. This has been fixed. [GL #2596]

5633.   [doc]           The "inline-signing" option was incorrectly described as
                        being inherited from the "options"/"view" levels and was
                        incorrectly accepted at those levels without effect.
                        This has been fixed. [GL #2536]

5632.   [func]          Add a new built-in KASP, "insecure", which is used to
                        transition a zone from a signed to an unsigned state.
                        The existing built-in KASP "none" should no longer be
                        used to unsign a zone. [GL #2645]

5631.   [protocol]      Update the implementation of the ZONEMD RR type to match
                        RFC 8976. [GL #2658]

5630.   [func]          Treat DNSSEC responses containing NSEC3 records with
                        iteration counts greater than 150 as insecure.
                        [GL #2445]

5629.   [func]          Reduce the maximum supported number of NSEC3 iterations
                        that can be configured for a zone to 150. [GL #2642]

5627.   [bug]           RRSIG(SOA) RRsets placed anywhere other than at the zone
                        apex were triggering infinite resigning loops. This has
                        been fixed. [GL #2650]

5626.   [bug]           When generating zone signing keys, KASP now also checks
                        for key ID conflicts among newly created keys, rather
                        than just between new and existing ones. [GL #2628]

5625.   [bug]           A deadlock could occur when multiple "rndc addzone",
                        "rndc delzone", and/or "rndc modzone" commands were
                        invoked simultaneously for different zones. This has
                        been fixed. [GL #2626]

5622.   [cleanup]       The lib/samples/ directory has been removed, as export
                        versions of libraries are no longer maintained.
                        [GL !4835]

5619.   [protocol]      Implement draft-vandijk-dnsop-nsec-ttl, updating the
                        protocol such that NSEC(3) TTL values are set to the
                        minimum of the SOA MINIMUM value or the SOA TTL.
                        [GL #2347]

5618.   [bug]           Change 5149 introduced some inconsistencies in the way
                        record TTLs were presented in cache dumps. These
                        inconsistencies have been eliminated. [GL #389]
                        [GL #2289]

diffstat:

 external/mpl/bind/dist/CHANGES                                                                  |   246 +
 external/mpl/bind/dist/PLATFORMS                                                                |    14 +-
 external/mpl/bind/dist/PLATFORMS.md                                                             |    14 +-
 external/mpl/bind/dist/bin/named/named.conf.rst                                                 |   117 +-
 external/mpl/bind/dist/bin/rndc/rndc.rst                                                        |     2 +-
 external/mpl/bind/dist/bin/tests/system/Makefile.in                                             |    29 +-
 external/mpl/bind/dist/bin/tests/system/addzone/ns3/example.db                                  |     2 +
 external/mpl/bind/dist/bin/tests/system/addzone/tests_rndc_deadlock.py                          |    90 +
 external/mpl/bind/dist/bin/tests/system/autosign/tests.sh                                       |     2 +-
 external/mpl/bind/dist/bin/tests/system/cacheclean/ns1/named.args                               |     1 +
 external/mpl/bind/dist/bin/tests/system/cacheclean/ns2/named.args                               |     1 +
 external/mpl/bind/dist/bin/tests/system/chain/ans3/ans.pl                                       |    28 +
 external/mpl/bind/dist/bin/tests/system/chain/clean.sh                                          |     2 +-
 external/mpl/bind/dist/bin/tests/system/chain/ns1/root.db                                       |     4 +
 external/mpl/bind/dist/bin/tests/system/chain/ns2/generic.db                                    |     2 +
 external/mpl/bind/dist/bin/tests/system/chain/ns2/named.conf.in                                 |    20 +
 external/mpl/bind/dist/bin/tests/system/chain/ns2/sign.sh                                       |    35 +-
 external/mpl/bind/dist/bin/tests/system/chain/ns2/wildcard-secure.db                            |    27 +
 external/mpl/bind/dist/bin/tests/system/chain/ns2/wildcard.db                                   |    26 +
 external/mpl/bind/dist/bin/tests/system/chain/tests.sh                                          |   325 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-inline-options.conf                       |    22 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-inline-view.conf                          |    29 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp-define-default.conf                  |    21 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp-define-insecure.conf                 |    21 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp-define-none.conf                     |    21 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp-keydir1.conf                         |    48 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp-keydir2.conf                         |    46 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp-keydir3.conf                         |    53 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp-keydir4.conf                         |    50 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp-keydir5.conf                         |    50 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp-policy-undefined-inherited-view.conf |    23 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp-policy-undefined-inherited.conf      |    23 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp10.conf                               |    26 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp11.conf                               |    26 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp12.conf                               |    28 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp13.conf                               |    26 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp6.conf                                |    25 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp7.conf                                |    26 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp8.conf                                |    26 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-kasp9.conf                                |    26 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-parental-agents-def-options.conf          |    19 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-parental-agents-def-view.conf             |    18 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-parental-agents-def-view2.conf            |    20 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-parental-agents-def-zone.conf             |    16 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-parental-agents-dup.conf                  |    17 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-parental-agents-dupdef.conf               |    24 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-parental-agents-empty.conf                |    18 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-parental-agents-empty2.conf               |    16 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-parental-agents-mirror.conf               |    16 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-parental-agents-notfound.conf             |    20 +
 external/mpl/bind/dist/bin/tests/system/checkconf/bad-primaries-notfound.conf                   |    19 +
 external/mpl/bind/dist/bin/tests/system/checkconf/good-kasp.conf                                |     9 +-
 external/mpl/bind/dist/bin/tests/system/checkconf/good-key-directory.conf                       |    68 +
 external/mpl/bind/dist/bin/tests/system/checkconf/good.conf                                     |    60 +-
 external/mpl/bind/dist/bin/tests/system/checkconf/good.zonelist                                 |     8 +
 external/mpl/bind/dist/bin/tests/system/checkconf/kasp-bad-nsec3-iter.conf                      |     8 +-
 external/mpl/bind/dist/bin/tests/system/checkconf/tests.sh                                      |     6 +-
 external/mpl/bind/dist/bin/tests/system/checkds/README                                          |    19 +
 external/mpl/bind/dist/bin/tests/system/checkds/clean.sh                                        |    16 +-
 external/mpl/bind/dist/bin/tests/system/checkds/conftest.py                                     |    71 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns2/named.conf.in                               |    43 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns2/setup.sh                                    |    32 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns2/template.db.in                              |    36 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns4/named.conf.in                               |    39 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns5/named.conf.in                               |    43 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns5/setup.sh                                    |    24 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns5/template.db.in                              |    36 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns6/named.conf.in                               |    43 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns7/named.conf.in                               |    44 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns9/named.conf.in                               |   193 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns9/setup.sh                                    |    59 +
 external/mpl/bind/dist/bin/tests/system/checkds/ns9/template.db.in                              |    25 +
 external/mpl/bind/dist/bin/tests/system/checkds/prereq.sh                                       |    29 +
 external/mpl/bind/dist/bin/tests/system/checkds/tests-checkds.py                                |   374 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/clean.sh                                    |    13 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/dig.bat                                     |    32 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/dig.pl                                      |    39 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/dig.sh                                      |    22 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/missing.example.dnskey.db                   |     3 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/missing.example.ds.db                       |     2 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/none.example.dnskey.db                      |     3 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/ok.example.dnskey.db                        |     2 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/ok.example.ds.db                            |     2 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/prep.example.db                             |   121 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/prep.example.ds.db                          |     2 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/tests.sh                                    |   115 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/wrong.example.dnskey.db                     |     2 +
 external/mpl/bind/dist/bin/tests/system/checkdstool/wrong.example.ds.db                         |     2 +
 external/mpl/bind/dist/bin/tests/system/checkzone/zones/bad-cdnskey.db                          |     2 +-
 external/mpl/bind/dist/bin/tests/system/checkzone/zones/bad-cds.db                              |     4 +-
 external/mpl/bind/dist/bin/tests/system/conf.sh.common                                          |    24 +-
 external/mpl/bind/dist/bin/tests/system/conf.sh.in                                              |     7 +-
 external/mpl/bind/dist/bin/tests/system/conf.sh.win32                                           |     4 +-
 external/mpl/bind/dist/bin/tests/system/digdelv/clean.sh                                        |     1 +
 external/mpl/bind/dist/bin/tests/system/digdelv/tests.sh                                        |    21 +-
 external/mpl/bind/dist/bin/tests/system/dnssec/clean.sh                                         |     1 +
 external/mpl/bind/dist/bin/tests/system/dnssec/ns1/root.db.in                                   |     2 +
 external/mpl/bind/dist/bin/tests/system/dnssec/ns1/sign.sh                                      |     1 +
 external/mpl/bind/dist/bin/tests/system/dnssec/ns2/named.conf.in                                |     5 +
 external/mpl/bind/dist/bin/tests/system/dnssec/ns2/sign.sh                                      |    11 +
 external/mpl/bind/dist/bin/tests/system/dnssec/ns2/too-many-iterations.db.in                    |    25 +
 external/mpl/bind/dist/bin/tests/system/dnssec/ns3/named.conf.in                                |     6 +
 external/mpl/bind/dist/bin/tests/system/dnssec/ns4/named4.conf.in                               |     1 +
 external/mpl/bind/dist/bin/tests/system/dnssec/ns7/sign.sh                                      |    12 +-
 external/mpl/bind/dist/bin/tests/system/dnssec/signer/general/Kexample.com.+008+15002.key       |     5 +
 external/mpl/bind/dist/bin/tests/system/dnssec/signer/general/Kexample.com.+008+15002.private   |    13 +
 external/mpl/bind/dist/bin/tests/system/dnssec/signer/general/Kexample.com.+008+63613.key       |     5 +
 external/mpl/bind/dist/bin/tests/system/dnssec/signer/general/Kexample.com.+008+63613.private   |    13 +
 external/mpl/bind/dist/bin/tests/system/dnssec/signer/general/test9.zone                        |    17 +
 external/mpl/bind/dist/bin/tests/system/dnssec/tests.sh                                         |   140 +-
 external/mpl/bind/dist/bin/tests/system/genzone.sh                                              |    12 +-
 external/mpl/bind/dist/bin/tests/system/inline/ns3/include.db.in                                |     1 +
 external/mpl/bind/dist/bin/tests/system/inline/ns3/master7.db.in                                |    24 +
 external/mpl/bind/dist/bin/tests/system/inline/ns8/example.db.in                                |    24 +
 external/mpl/bind/dist/bin/tests/system/inline/ns8/example2.db.in                               |    24 +
 external/mpl/bind/dist/bin/tests/system/inline/ns8/example3.db.in                               |    24 +
 external/mpl/bind/dist/bin/tests/system/inline/ns8/named.conf.in                                |     7 +
 external/mpl/bind/dist/bin/tests/system/inline/ns8/sign.sh                                      |     7 +
 external/mpl/bind/dist/bin/tests/system/inline/setup.sh                                         |     1 +
 external/mpl/bind/dist/bin/tests/system/inline/tests.sh                                         |    98 +-
 external/mpl/bind/dist/bin/tests/system/ixfr/tests.sh                                           |    75 +-
 external/mpl/bind/dist/bin/tests/system/journal/clean.sh                                        |     2 +
 external/mpl/bind/dist/bin/tests/system/journal/ns2/managed-keys.bind.in                        |    14 +
 external/mpl/bind/dist/bin/tests/system/journal/ns2/managed-keys.bind.jnl.in                    |   Bin 
 external/mpl/bind/dist/bin/tests/system/journal/ns2/named.conf.in                               |    34 +
 external/mpl/bind/dist/bin/tests/system/journal/setup.sh                                        |     4 +
 external/mpl/bind/dist/bin/tests/system/journal/tests.sh                                        |    32 +
 external/mpl/bind/dist/bin/tests/system/kasp.sh                                                 |   253 +-
 external/mpl/bind/dist/bin/tests/system/kasp/ns3/named.conf.in                                  |    16 +
 external/mpl/bind/dist/bin/tests/system/kasp/ns3/setup.sh                                       |    44 +-
 external/mpl/bind/dist/bin/tests/system/kasp/ns4/named.conf.in                                  |    12 +
 external/mpl/bind/dist/bin/tests/system/kasp/ns6/example.db.in                                  |    24 +
 external/mpl/bind/dist/bin/tests/system/kasp/ns6/example2.db.in                                 |    24 +
 external/mpl/bind/dist/bin/tests/system/kasp/ns6/example3.db.in                                 |    24 +
 external/mpl/bind/dist/bin/tests/system/kasp/ns6/named.conf.in                                  |    18 +
 external/mpl/bind/dist/bin/tests/system/kasp/ns6/named2.conf.in                                 |    26 +-
 external/mpl/bind/dist/bin/tests/system/kasp/ns6/setup.sh                                       |    28 +-
 external/mpl/bind/dist/bin/tests/system/kasp/tests.sh                                           |   226 +-
 external/mpl/bind/dist/bin/tests/system/keymgr2kasp/ns3/setup.sh                                |    11 -
 external/mpl/bind/dist/bin/tests/system/keymgr2kasp/ns4/named.conf.in                           |     8 +-
 external/mpl/bind/dist/bin/tests/system/keymgr2kasp/ns4/named2.conf.in                          |    28 +-
 external/mpl/bind/dist/bin/tests/system/keymgr2kasp/ns4/setup.sh                                |    10 -
 external/mpl/bind/dist/bin/tests/system/keymgr2kasp/tests.sh                                    |     6 +-
 external/mpl/bind/dist/bin/tests/system/nsec3/ns3/named.conf.in                                 |     8 +
 external/mpl/bind/dist/bin/tests/system/nsec3/ns3/named2.conf.in                                |     8 +
 external/mpl/bind/dist/bin/tests/system/nsec3/ns3/nsec3-fails-to-load.kasp.db.in                |     8 +
 external/mpl/bind/dist/bin/tests/system/nsec3/ns3/setup.sh                                      |     2 +
 external/mpl/bind/dist/bin/tests/system/nsec3/tests.sh                                          |    57 +-
 external/mpl/bind/dist/bin/tests/system/nsupdate/clean.sh                                       |     2 +
 external/mpl/bind/dist/bin/tests/system/nsupdate/krb/setup.sh                                   |     2 +-
 external/mpl/bind/dist/bin/tests/system/nsupdate/ns10/named.conf.in                             |     2 +-
 external/mpl/bind/dist/bin/tests/system/nsupdate/ns3/multisigner.test.db.in                     |    12 +
 external/mpl/bind/dist/bin/tests/system/nsupdate/ns3/named.conf.in                              |     8 +
 external/mpl/bind/dist/bin/tests/system/nsupdate/ns3/sign.sh                                    |     3 +
 external/mpl/bind/dist/bin/tests/system/nsupdate/ns8/dns-other-than-KRB5_KTNAME.keytab          |   Bin 
 external/mpl/bind/dist/bin/tests/system/nsupdate/ns8/named.conf.in                              |     2 +-
 external/mpl/bind/dist/bin/tests/system/nsupdate/ns9/named.conf.in                              |     2 +-
 external/mpl/bind/dist/bin/tests/system/nsupdate/setup.sh                                       |    19 +-
 external/mpl/bind/dist/bin/tests/system/nsupdate/tests.sh                                       |   222 +-
 external/mpl/bind/dist/bin/tests/system/nsupdate/update_test.pl                                 |    11 +-
 external/mpl/bind/dist/bin/tests/system/resolve.c                                               |   498 ++
 external/mpl/bind/dist/bin/tests/system/rndc/setup.sh                                           |     9 +
 external/mpl/bind/dist/bin/tests/system/rndc/tests.sh                                           |    10 +
 external/mpl/bind/dist/bin/tests/system/run.sh                                                  |    98 +-
 external/mpl/bind/dist/bin/tests/system/serve-stale/ans2/ans.pl                                 |    47 +
 external/mpl/bind/dist/bin/tests/system/serve-stale/clean.sh                                    |     2 +-
 external/mpl/bind/dist/bin/tests/system/serve-stale/ns3/named1.conf.in                          |    37 +
 external/mpl/bind/dist/bin/tests/system/serve-stale/ns3/named8.conf.in                          |    44 +
 external/mpl/bind/dist/bin/tests/system/serve-stale/setup.sh                                    |     2 +-
 external/mpl/bind/dist/bin/tests/system/serve-stale/tests.sh                                    |   204 +-
 external/mpl/bind/dist/bin/tests/system/shutdown/clean.sh                                       |     1 -
 external/mpl/bind/dist/bin/tests/system/shutdown/tests-shutdown.py                              |   164 +-
 external/mpl/bind/dist/bin/tests/system/start.pl                                                |     4 +-
 external/mpl/bind/dist/bin/tests/system/statistics/clean.sh                                     |     2 +
 external/mpl/bind/dist/bin/tests/system/statistics/ns2/named2.conf.in                           |    48 +
 external/mpl/bind/dist/bin/tests/system/statistics/tests.sh                                     |    73 +-
 external/mpl/bind/dist/bin/tests/system/statschannel/clean.sh                                   |     2 +-
 external/mpl/bind/dist/bin/tests/system/statschannel/tests-json.py                              |     6 +-
 external/mpl/bind/dist/bin/tests/system/statschannel/tests-xml.py                               |     6 +-
 external/mpl/bind/dist/bin/tests/system/tcp/tests.sh                                            |     6 +
 external/mpl/bind/dist/bin/tests/system/timeouts/clean.sh                                       |     2 +-
 external/mpl/bind/dist/bin/tests/system/timeouts/ns1/named.args                                 |     1 +
 external/mpl/bind/dist/bin/tests/system/views/clean.sh                                          |     8 +-
 external/mpl/bind/dist/bin/tests/system/views/setup.sh                                          |    11 +-
 external/mpl/bind/dist/bin/tests/system/views/tests.sh                                          |   116 +-
 external/mpl/bind/dist/bin/tests/system/wildcard/tests.sh                                       |    35 +
 external/mpl/bind/dist/bin/tests/system/win32/resolve.vcxproj.filters.in                        |    22 +
 external/mpl/bind/dist/bin/tests/system/win32/resolve.vcxproj.in                                |   119 +
 external/mpl/bind/dist/bin/tests/system/win32/resolve.vcxproj.user                              |     3 +
 external/mpl/bind/dist/bin/tests/system/xfer/ans5/soamismatch                                   |    10 +
 external/mpl/bind/dist/bin/tests/system/xfer/dig1.good                                          |     3 +-
 external/mpl/bind/dist/bin/tests/system/xfer/dig2.good                                          |     3 +-
 external/mpl/bind/dist/bin/tests/system/xfer/tests.sh                                           |    19 +
 external/mpl/bind/dist/bin/tests/system/zero/ns2/named.args                                     |     1 +
 external/mpl/bind/dist/bin/tests/system/zero/ns3/named.args                                     |     1 +
 external/mpl/bind/dist/bin/tests/system/zero/ns4/named.args                                     |     1 +
 external/mpl/bind/dist/bin/tools/named-journalprint.rst                                         |     8 +-
 external/mpl/bind/dist/config.h.win32                                                           |    11 +-
 external/mpl/bind/dist/configure.ac                                                             |    56 +-
 external/mpl/bind/dist/contrib/kasp/kasp2policy.py                                              |     4 +-
 external/mpl/bind/dist/dangerfile.py                                                            |     7 +-
 external/mpl/bind/dist/doc/arm/advanced.rst                                                     |     6 +-
 external/mpl/bind/dist/doc/arm/catz.rst                                                         |    23 +-
 external/mpl/bind/dist/doc/arm/conf.py                                                          |    56 +
 external/mpl/bind/dist/doc/arm/dlz.rst                                                          |    10 +-
 external/mpl/bind/dist/doc/arm/dnssec.rst                                                       |     2 +-
 external/mpl/bind/dist/doc/arm/general.rst                                                      |     6 +-
 external/mpl/bind/dist/doc/arm/introduction.rst                                                 |    14 +-
 external/mpl/bind/dist/doc/arm/logging-categories.rst                                           |     4 +-
 external/mpl/bind/dist/doc/arm/managed-keys.rst                                                 |     2 +-
 external/mpl/bind/dist/doc/arm/notes.rst                                                        |    22 +-
 external/mpl/bind/dist/doc/arm/pkcs11.rst                                                       |     2 +-
 external/mpl/bind/dist/doc/arm/reference.rst                                                    |   270 +-
 external/mpl/bind/dist/doc/arm/requirements.rst                                                 |     2 +-
 external/mpl/bind/dist/doc/arm/requirements.txt                                                 |     2 +
 external/mpl/bind/dist/doc/arm/security.rst                                                     |     2 +-
 external/mpl/bind/dist/doc/dnssec-guide/recipes.rst                                             |    26 +-
 external/mpl/bind/dist/doc/dnssec-guide/signing.rst                                             |    35 +-
 external/mpl/bind/dist/doc/man/conf.py                                                          |     9 +-
 external/mpl/bind/dist/doc/man/named-journalprint.8in                                           |     8 +-
 external/mpl/bind/dist/doc/man/named.conf.5in                                                   |   121 +-
 external/mpl/bind/dist/doc/man/rndc.8in                                                         |     2 +-
 external/mpl/bind/dist/doc/misc/Makefile.in                                                     |     1 +
 external/mpl/bind/dist/doc/misc/master.zoneopt                                                  |     5 +-
 external/mpl/bind/dist/doc/misc/master.zoneopt.rst                                              |     6 +-
 external/mpl/bind/dist/doc/misc/mirror.zoneopt                                                  |     6 +-
 external/mpl/bind/dist/doc/misc/mirror.zoneopt.rst                                              |     7 +-
 external/mpl/bind/dist/doc/misc/options                                                         |   119 +-
 external/mpl/bind/dist/doc/misc/options.active                                                  |   119 +-
 external/mpl/bind/dist/doc/misc/options.grammar.rst                                             |    29 +-
 external/mpl/bind/dist/doc/misc/parentals.grammar.rst                                           |     7 +
 external/mpl/bind/dist/doc/misc/primaries.grammar.rst                                           |     7 +-
 external/mpl/bind/dist/doc/misc/redirect.zoneopt                                                |     4 +-
 external/mpl/bind/dist/doc/misc/redirect.zoneopt.rst                                            |     4 +-
 external/mpl/bind/dist/doc/misc/slave.zoneopt                                                   |     9 +-
 external/mpl/bind/dist/doc/misc/slave.zoneopt.rst                                               |    10 +-
 external/mpl/bind/dist/doc/misc/stub.zoneopt                                                    |     4 +-
 external/mpl/bind/dist/doc/misc/stub.zoneopt.rst                                                |     4 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.0.rst                                               |    38 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.1.rst                                               |     2 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.10.rst                                              |    12 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.11.rst                                              |    19 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.12.rst                                              |    26 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.13.rst                                              |    16 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.15.rst                                              |    28 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.16.rst                                              |    68 +
 external/mpl/bind/dist/doc/notes/notes-9.16.17.rst                                              |    59 +
 external/mpl/bind/dist/doc/notes/notes-9.16.18.rst                                              |    25 +
 external/mpl/bind/dist/doc/notes/notes-9.16.19.rst                                              |    60 +
 external/mpl/bind/dist/doc/notes/notes-9.16.2.rst                                               |    12 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.20.rst                                              |    49 +
 external/mpl/bind/dist/doc/notes/notes-9.16.3.rst                                               |    28 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.4.rst                                               |    35 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.5.rst                                               |    24 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.6.rst                                               |    27 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.7.rst                                               |    14 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.8.rst                                               |    14 +-
 external/mpl/bind/dist/doc/notes/notes-9.16.9.rst                                               |    12 +-
 external/mpl/bind/dist/lib/Makefile.in                                                          |     2 +-
 external/mpl/bind/dist/lib/dns/tests/Kyuafile                                                   |     1 +
 external/mpl/bind/dist/lib/dns/tests/Makefile.in                                                |     7 +
 external/mpl/bind/dist/lib/dns/tests/rbtdb_test.c                                               |   245 +
 external/mpl/bind/dist/lib/dns/win32/libdns.def.in                                              |    35 +-
 external/mpl/bind/dist/lib/isc/Makefile.in                                                      |    15 +-
 external/mpl/bind/dist/lib/isc/include/isc/Makefile.in                                          |     9 +-
 external/mpl/bind/dist/lib/isc/include/isc/barrier.h                                            |    39 +
 external/mpl/bind/dist/lib/isc/include/isc/managers.h                                           |    29 +
 external/mpl/bind/dist/lib/isc/include/isc/url.h                                                |    82 +
 external/mpl/bind/dist/lib/isc/managers.c                                                       |   102 +
 external/mpl/bind/dist/lib/isc/netmgr/Makefile.in                                               |     7 +-
 external/mpl/bind/dist/lib/isc/netmgr_p.h                                                       |    38 +
 external/mpl/bind/dist/lib/isc/tests/Kyuafile                                                   |     1 +
 external/mpl/bind/dist/lib/isc/tests/Makefile.in                                                |    48 +-
 external/mpl/bind/dist/lib/isc/tests/netmgr_test.c                                              |  2221 ++++++++++
 external/mpl/bind/dist/lib/isc/tls.c                                                            |   214 +-
 external/mpl/bind/dist/lib/isc/trampoline_p.h                                                   |    26 +-
 external/mpl/bind/dist/lib/isc/url.c                                                            |   671 +++
 external/mpl/bind/dist/lib/isc/win32/libisc.def.in                                              |    52 +-
 external/mpl/bind/dist/lib/isc/win32/libisc.vcxproj.filters.in                                  |    39 +-
 external/mpl/bind/dist/lib/isc/win32/libisc.vcxproj.in                                          |     7 +-
 external/mpl/bind/dist/ltmain.sh                                                                |   258 +-
 external/mpl/bind/dist/m4/libtool.m4                                                            |    68 +-
 external/mpl/bind/dist/srcid                                                                    |     2 +-
 external/mpl/bind/dist/tsan-suppressions.txt                                                    |     2 +
 external/mpl/bind/dist/util/check-make-install.in                                               |    26 +
 external/mpl/bind/dist/version                                                                  |     4 +-
 external/mpl/bind/dist/win32utils/Configure                                                     |    49 +-
 external/mpl/bind/dist/win32utils/bind9.sln.in                                                  |   100 +-
 288 files changed, 11219 insertions(+), 1697 deletions(-)

diffs (truncated from 18703 to 300 lines):

diff -r 747cf717b5a4 -r 465b1231b17c external/mpl/bind/dist/CHANGES
--- a/external/mpl/bind/dist/CHANGES    Thu Aug 19 11:04:21 2021 +0000
+++ b/external/mpl/bind/dist/CHANGES    Thu Aug 19 11:45:12 2021 +0000
@@ -1,3 +1,249 @@
+       --- 9.16.20 released ---
+
+5689.  [security]      An assertion failure occurred when named attempted to
+                       send a UDP packet that exceeded the MTU size, if
+                       Response Rate Limiting (RRL) was enabled.
+                       (CVE-2021-25218) [GL #2856]
+
+5688.  [bug]           Zones using KASP and inline-signed zones failed to apply
+                       changes from the unsigned zone to the signed zone under
+                       certain circumstances. This has been fixed. [GL #2735]
+
+5687.  [bug]           "rndc reload <zonename>" could trigger a redundant
+                       reload for an inline-signed zone whose zone file was not
+                       modified since the last "rndc reload". This has been
+                       fixed. [GL #2855]
+
+5686.  [func]          The number of internal data structures allocated for
+                       each zone was reduced. [GL #2829]
+
+5685.  [bug]           named failed to check the opcode of responses when
+                       performing zone refreshes, stub zone updates, and UPDATE
+                       forwarding. This has been fixed. [GL #2762]
+
+5682.  [bug]           Some changes to "zone-statistics" settings were not
+                       properly processed by "rndc reconfig". This has been
+                       fixed. [GL #2820]
+
+5681.  [func]          Relax the checks in the dns_zone_cdscheck() function to
+                       allow CDS and CDNSKEY records in the zone that do not
+                       match an existing DNSKEY record, as long as the
+                       algorithm matches. This allows a clean rollover from one
+                       provider to another in a multi-signer DNSSEC
+                       configuration. [GL #2710]
+
+5679.  [func]          Thread affinity is no longer set. [GL #2822]
+
+5678.  [bug]           The "check DS" code failed to release all resources upon
+                       named shutdown when a refresh was in progress. This has
+                       been fixed. [GL #2811]
+
+5672.  [bug]           Authentication of rndc messages could fail if a
+                       "controls" statement was configured with multiple key
+                       algorithms for the same listener. This has been fixed.
+                       [GL #2756]
+
+       --- 9.16.19 released ---
+
+5671.  [bug]           A race condition could occur where two threads were
+                       competing for the same set of key file locks, leading to
+                       a deadlock. This has been fixed. [GL #2786]
+
+5670.  [bug]           create_keydata() created an invalid placeholder keydata
+                       record upon a refresh failure, which prevented the
+                       database of managed keys from subsequently being read
+                       back. This has been fixed. [GL #2686]
+
+5669.  [func]          KASP support was extended with the "check DS" feature.
+                       Zones with "dnssec-policy" and "parental-agents"
+                       configured now check for DS presence and can perform
+                       automatic KSK rollovers. [GL #1126]
+
+5668.  [bug]           Rescheduling a setnsec3param() task when a zone failed
+                       to load on startup caused a hang on shutdown. This has
+                       been fixed. [GL #2791]
+
+5667.  [bug]           The configuration-checking code failed to account for
+                       the inheritance rules of the "dnssec-policy" option.
+                       This has been fixed. [GL #2780]
+
+5666.  [doc]           The safe "edns-udp-size" value was tweaked to match the
+                       probing value from BIND 9.16 for better compatibility.
+                       [GL #2183]
+
+5665.  [bug]           If nsupdate sends an SOA request and receives a REFUSED
+                       response, it now fails over to the next available
+                       server. [GL #2758]
+
+5664.  [func]          For UDP messages larger than the path MTU, named now
+                       sends an empty response with the TC (TrunCated) bit set.
+                       In addition, setting the DF (Don't Fragment) flag on
+                       outgoing UDP sockets was re-enabled. [GL #2790]
+
+5662.  [bug]           Views with recursion disabled are now configured with a
+                       default cache size of 2 MB unless "max-cache-size" is
+                       explicitly set. This prevents cache RBT hash tables from
+                       being needlessly preallocated for such views. [GL #2777]
+
+5661.  [bug]           Change 5644 inadvertently introduced a deadlock: when
+                       locking the key file mutex for each zone structure in a
+                       different view, the "in-view" logic was not considered.
+                       This has been fixed. [GL #2783]
+
+5658.  [bug]           Increasing "max-cache-size" for a running named instance
+                       (using "rndc reconfig") did not cause the hash tables
+                       used by cache databases to be grown accordingly. This
+                       has been fixed. [GL #2770]
+
+5655.  [bug]           Signed, insecure delegation responses prepared by named
+                       either lacked the necessary NSEC records or contained
+                       duplicate NSEC records when both wildcard expansion and
+                       CNAME chaining were required to prepare the response.
+                       This has been fixed. [GL #2759]
+
+5653.  [bug]           A bug that caused the NSEC3 salt to be changed on every
+                       restart for zones using KASP has been fixed. [GL #2725]
+
+       --- 9.16.18 released ---
+
+5660.  [bug]           The configuration-checking code failed to account for
+                       the inheritance rules of the "key-directory" option.
+                       [GL #2778]
+
+5659.  [bug]           When preparing DNS responses, named could replace the
+                       letters 'W' (uppercase) and 'w' (lowercase) with '\000'.
+                       This has been fixed. [GL #2779]
+
+       --- 9.16.17 released ---
+
+5652.  [bug]           A copy-and-paste error in change 5584 caused the
+                       IP_DONTFRAG socket option to be enabled instead of
+                       disabled. This has been fixed. [GL #2746]
+
+5651.  [func]          Refactor zone dumping to be processed asynchronously via
+                       the uv_work_t thread pool API. [GL #2732]
+
+5650.  [bug]           Prevent a crash that could occur if serve-stale was
+                       enabled and a prefetch was triggered during a query
+                       restart. [GL #2733]
+
+5649.  [bug]           If a query was answered with stale data on a server with
+                       DNS64 enabled, an assertion could occur if a non-stale
+                       answer arrived afterward. [GL #2731]
+
+5648.  [bug]           The calculation of the estimated IXFR transaction size
+                       in dns_journal_iter_init() was invalid. [GL #2685]
+
+5644.  [bug]           Fix a race condition in reading and writing key files
+                       for zones using KASP and configured in multiple views.
+                       [GL #1875]
+
+5643.  [cleanup]       "make install" no longer creates an empty
+                       ${localstatedir}/run directory. [GL #2709]
+
+5642.  [bug]           Zones which are configured in multiple views with
+                       different values set for "dnssec-policy" and with
+                       identical values set for "key-directory" are now
+                       detected and treated as a configuration error.
+                       [GL #2463]
+
+5641.  [bug]           Address a potential memory leak in
+                       dst_key_fromnamedfile(). [GL #2689]
+
+5639.  [bug]           Check that the first and last SOA record of an AXFR are
+                       consistent. [GL #2528]
+
+5638.  [bug]           Improvements related to network manager/task manager
+                       integration:
+                       - isc_managers_create() and isc_managers_destroy()
+                         functions were added to handle setup and teardown of
+                         netmgr, taskmgr, timermgr, and socketmgr, since these
+                         require a precise order of operations now.
+                       - Event queue processing is now quantized to prevent
+                         infinite looping.
+                       - The netmgr can now be paused from within a netmgr
+                         thread.
+                       - Deadlocks due to a conflict between netmgr's
+                         pause/resume and listen/stoplistening operations were
+                         fixed.
+                       [GL #2654]
+
+5633.  [doc]           The "inline-signing" option was incorrectly described as
+                       being inherited from the "options"/"view" levels and was
+                       incorrectly accepted at those levels without effect.
+                       This has been fixed. [GL #2536]
+
+5624.  [func]          Task manager events are now processed inside network
+                       manager loops. The task manager no longer needs its own
+                       set of worker threads, which improves resolver
+                       performance. [GL #2638]
+
+       --- 9.16.16 released ---
+
+5637.  [func]          Change the default value of the "max-ixfr-ratio" option
+                       to "unlimited". [GL #2671]
+
+5636.  [bug]           named and named-checkconf did not report an error when
+                       multiple zones with the "dnssec-policy" option set were
+                       using the same zone file. This has been fixed.
+                       [GL #2603]
+
+5635.  [bug]           Journal compaction could fail when a journal with
+                       invalid transaction headers was not detected at startup.
+                       This has been fixed. [GL #2670]
+
+5634.  [bug]           If "dnssec-policy" was active and a private key file was
+                       temporarily offline during a rekey event, named could
+                       incorrectly introduce replacement keys and break a
+                       signed zone. This has been fixed. [GL #2596]
+
+5633.  [doc]           The "inline-signing" option was incorrectly described as
+                       being inherited from the "options"/"view" levels and was
+                       incorrectly accepted at those levels without effect.
+                       This has been fixed. [GL #2536]
+
+5632.  [func]          Add a new built-in KASP, "insecure", which is used to
+                       transition a zone from a signed to an unsigned state.
+                       The existing built-in KASP "none" should no longer be
+                       used to unsign a zone. [GL #2645]
+
+5631.  [protocol]      Update the implementation of the ZONEMD RR type to match
+                       RFC 8976. [GL #2658]
+
+5630.  [func]          Treat DNSSEC responses containing NSEC3 records with
+                       iteration counts greater than 150 as insecure.
+                       [GL #2445]
+
+5629.  [func]          Reduce the maximum supported number of NSEC3 iterations
+                       that can be configured for a zone to 150. [GL #2642]
+
+5627.  [bug]           RRSIG(SOA) RRsets placed anywhere other than at the zone
+                       apex were triggering infinite resigning loops. This has
+                       been fixed. [GL #2650]
+
+5626.  [bug]           When generating zone signing keys, KASP now also checks
+                       for key ID conflicts among newly created keys, rather
+                       than just between new and existing ones. [GL #2628]
+
+5625.  [bug]           A deadlock could occur when multiple "rndc addzone",
+                       "rndc delzone", and/or "rndc modzone" commands were
+                       invoked simultaneously for different zones. This has
+                       been fixed. [GL #2626]
+
+5622.  [cleanup]       The lib/samples/ directory has been removed, as export
+                       versions of libraries are no longer maintained.
+                       [GL !4835]
+
+5619.  [protocol]      Implement draft-vandijk-dnsop-nsec-ttl, updating the
+                       protocol such that NSEC(3) TTL values are set to the
+                       minimum of the SOA MINIMUM value or the SOA TTL.
+                       [GL #2347]
+
+5618.  [bug]           Change 5149 introduced some inconsistencies in the way
+                       record TTLs were presented in cache dumps. These
+                       inconsistencies have been eliminated. [GL #389]
+                       [GL #2289]
+
        --- 9.16.15 released ---
 
 5621.  [bug]           Due to a backporting mistake in change 5609, named
diff -r 747cf717b5a4 -r 465b1231b17c external/mpl/bind/dist/PLATFORMS
--- a/external/mpl/bind/dist/PLATFORMS  Thu Aug 19 11:04:21 2021 +0000
+++ b/external/mpl/bind/dist/PLATFORMS  Thu Aug 19 11:45:12 2021 +0000
@@ -38,12 +38,12 @@
 following systems:
 
   * Debian 9, 10
-  * Ubuntu LTS 16.04, 20.04
-  * Fedora 33
+  * Ubuntu LTS 18.04, 20.04
+  * Fedora 34
   * Red Hat Enterprise Linux / CentOS 7, 8
-  * FreeBSD 11.4, 12.2
-  * OpenBSD 6.8
-  * Alpine Linux 3.13
+  * FreeBSD 11.4, 12.2, 13.0
+  * OpenBSD 6.9
+  * Alpine Linux 3.14
 
 The amd64, i386, armhf and arm64 CPU architectures are all fully
 supported.
@@ -62,7 +62,7 @@
   * Solaris 11
   * NetBSD
   * Other Linux distributions still supported by their vendors, such as:
-      + Ubuntu 19.04+
+      + Ubuntu 20.10+
       + Gentoo
       + Arch Linux
   * OpenWRT/LEDE 17.01+
@@ -79,7 +79,7 @@
 platforms.
 
   * Platforms past or close to their respective EOL dates, such as:
-      + Ubuntu 14.04, 18.10
+      + Ubuntu 14.04, 16.04 (Ubuntu ESM releases are not supported)
       + CentOS 6
       + Debian Jessie
       + FreeBSD 10.x
diff -r 747cf717b5a4 -r 465b1231b17c external/mpl/bind/dist/PLATFORMS.md
--- a/external/mpl/bind/dist/PLATFORMS.md       Thu Aug 19 11:04:21 2021 +0000
+++ b/external/mpl/bind/dist/PLATFORMS.md       Thu Aug 19 11:45:12 2021 +0000
@@ -46,12 +46,12 @@
 following systems:
 
 * Debian 9, 10
-* Ubuntu LTS 16.04, 20.04



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