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|
Patch Package: OTP 23.2
Git Tag: OTP-23.2
Date: 2020-12-16
Trouble Report Id: OTP-15126, OTP-16267, OTP-16277, OTP-16445,
OTP-16460, OTP-16529, OTP-16649, OTP-16762,
OTP-16799, OTP-16819, OTP-16849, OTP-16859,
OTP-16863, OTP-16864, OTP-16869, OTP-16873,
OTP-16888, OTP-16889, OTP-16893, OTP-16894,
OTP-16899, OTP-16900, OTP-16908, OTP-16920,
OTP-16921, OTP-16922, OTP-16923, OTP-16932,
OTP-16941, OTP-16948, OTP-16954, OTP-16956,
OTP-16976, OTP-16983, OTP-16989, OTP-16990,
OTP-17008, OTP-17012, OTP-17013, OTP-17018,
OTP-17019, OTP-17022, OTP-17025, OTP-17029,
OTP-17030, OTP-17033, OTP-17034, OTP-17038,
OTP-17039, OTP-17045, OTP-17046, OTP-17047,
OTP-17054, OTP-17055, OTP-17056, OTP-17058,
OTP-17060, OTP-17061, OTP-17065, OTP-17066,
OTP-17067, OTP-17068, OTP-17069, OTP-17070,
OTP-17072
Seq num: ERIERL-477, ERIERL-492, ERIERL-544,
ERIERL-547, ERIERL-571, ERL-1223, ERL-1337,
ERL-1339, ERL-1341, ERL-1352, ERL-1375,
ERL-1386, ERL-1400, ERL-1405, ERL-1407,
ERL-1409, ERL-1412, ERL-1417, ERL-1424,
ERL-1426, ERL-1427, ERL-1440, ERL-330
System: OTP
Release: 23
Application: common_test-1.19.1, compiler-7.6.6,
crypto-4.8.1, dialyzer-4.3, erl_docgen-1.0.2,
erts-11.1.4, inets-7.3.1, kernel-7.2,
megaco-3.19.4, mnesia-4.18.1,
public_key-1.9.2, snmp-5.7, ssh-4.10.6,
ssl-10.2, stdlib-3.14, syntax_tools-2.4,
tools-3.4.2, wx-1.9.2, xmerl-1.3.26
Predecessor: OTP 23.1.5
Check out the git tag OTP-23.2, and build a full OTP system including
documentation. Apply one or more applications from this build as
patches to your installation using the 'otp_patch_apply' tool. For
information on install requirements, see descriptions for each
application version below.
---------------------------------------------------------------------
--- HIGHLIGHTS ------------------------------------------------------
---------------------------------------------------------------------
OTP-16277 Application(s): ssl
Handle extraneous certs in certificate chains as well
as chains that are incomplete but can be reconstructed
or unordered chains. The cert and certfile options will
now accept a list of certificates so that the user may
specify the chain explicitly.
Also, the default value of the depth option has been
increased to allow longer chains by default.
OTP-16445 Application(s): ssl
Related Id(s): PR-2823
This change implements optional NSS-style keylog in
ssl:connection_information/2 for debugging purposes.
The keylog contains various TLS secrets that can be
loaded in Wireshark to decrypt TLS packets.
OTP-16893 Application(s): ssl
Add explicit session reuse option to TLS clients for
pre TLS-1.3 sessions. Also, add documentation to Users
Guide for such sessions.
OTP-17022 Application(s): snmp
Related Id(s): ERIERL-492
It is now possible to configure the agent in such a way
that the order of outgoing notifications are processed
in order in the agent. What happens after the
notification message has left the agent (been sent) is
of course still out of our control.
OTP-17025 Application(s): crypto
Related Id(s): ERL-1400, PR-2877
Fixed performance loss in HMAC when using older OpenSSL
due to mutex issues.
A workaround is implemented to allow fallback from
using the EVP API for HMAC operations. On some
architectures this may improve the performance,
especially with old OpenSSL versions. This fallback to
low-level functions is always enabled for openssl
versions before 1.0.2.
OTP-17029 Application(s): crypto
It is now possible to build with crypto and openssl
gprof-enabled and statically link them into the VM.
---------------------------------------------------------------------
--- POTENTIAL INCOMPATIBILITIES -------------------------------------
---------------------------------------------------------------------
OTP-16460 Application(s): stdlib
Improved the API and documentation of the uri_string
module.
Added a new chapter to the Users Guide about Uniform
Resource Identifiers and their handling with the new
API.
Added two new API functions:
uri_string:allowed_characters/0 and
uri_string:percent_decode/1.
This change has been marked as potentially incompatible
as uri_string:normalize/2 used to decode
percent-encoded character triplets that corresponded to
characters not in the reserved set. After this change,
uri_string:normalize/2 will only decode those
percent-encoded triplets that correspond to characters
in the unreserved set (ALPHA / DIGIT / "-" / "." / "_"
/ "~").
---------------------------------------------------------------------
--- OTP-23.2 --------------------------------------------------------
---------------------------------------------------------------------
--- Fixed Bugs and Malfunctions ---
OTP-17008 Application(s): otp
Related Id(s): ERL-1407
Erlang/OTP would not build on macOS 11.0.1.
--- Improvements and New Features ---
OTP-17067 Application(s): erts, otp
Related Id(s): PR-2907
Add manifest to all executables and dynamic libraries.
---------------------------------------------------------------------
--- common_test-1.19.1 ----------------------------------------------
---------------------------------------------------------------------
The common_test-1.19.1 application can be applied independently of
other applications on a full OTP 23 installation.
--- Improvements and New Features ---
OTP-17070 Application(s): common_test
Add behaviour for test suites
Full runtime dependencies of common_test-1.19.1: compiler-6.0,
crypto-3.6, debugger-4.1, erts-7.0, ftp-1.0.0, inets-6.0, kernel-4.0,
observer-2.1, runtime_tools-1.8.16, sasl-2.4.2, snmp-5.1.2, ssh-4.0,
stdlib-3.5, syntax_tools-1.7, tools-2.8, xmerl-1.3.8
---------------------------------------------------------------------
--- compiler-7.6.6 --------------------------------------------------
---------------------------------------------------------------------
The compiler-7.6.6 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-16932 Application(s): compiler
Several minor compiler bugs have been fixed:
Constructing a binary with a list as a size of a binary
segment could generate a BEAM file that could not be
loaded.
When matching a binary segment of type float and
ignoring the matched out value, the match would always
succeed, even if the size was invalid or the value of
the float was NaN or some other non-numeric float
value.
Attempting to construct an invalid external fun (e.g.
fun m:f:bad) is supposed to raise a 'badarg' exception,
but if the value was never used, no exception would be
raised.
OTP-17039 Application(s): compiler
Related Id(s): ERL-1426
Fixed multiple bugs in the validator that could cause
it to reject valid code.
OTP-17045 Application(s): compiler
Related Id(s): ERL-1427
The compiler could crash when a binary comprehension
had a generator that depended on another generator.
OTP-17072 Application(s): compiler
Related Id(s): ERL-1440
Fixed a bug in the type optimization pass that could
yield incorrect values or cause the wrong clauses to be
executed.
Full runtime dependencies of compiler-7.6.6: crypto-3.6, erts-11.0,
hipe-3.12, kernel-7.0, stdlib-3.13
---------------------------------------------------------------------
--- crypto-4.8.1 ----------------------------------------------------
---------------------------------------------------------------------
The crypto-4.8.1 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-16819 Application(s): crypto
Related Id(s): PR-2720
Build the supported curves cache in the NIF when crypto
is loaded, no matter how it is loaded.
This prevents a possible problem with different
processes starting the crypto application concurrently.
OTP-17029 Application(s): crypto
*** HIGHLIGHT ***
It is now possible to build with crypto and openssl
gprof-enabled and statically link them into the VM.
--- Improvements and New Features ---
OTP-17025 Application(s): crypto
Related Id(s): ERL-1400, PR-2877
*** HIGHLIGHT ***
Fixed performance loss in HMAC when using older OpenSSL
due to mutex issues.
A workaround is implemented to allow fallback from
using the EVP API for HMAC operations. On some
architectures this may improve the performance,
especially with old OpenSSL versions. This fallback to
low-level functions is always enabled for openssl
versions before 1.0.2.
Full runtime dependencies of crypto-4.8.1: erts-9.0, kernel-5.3,
stdlib-3.4
---------------------------------------------------------------------
--- dialyzer-4.3 ----------------------------------------------------
---------------------------------------------------------------------
The dialyzer-4.3 application can be applied independently of other
applications on a full OTP 23 installation.
--- Improvements and New Features ---
OTP-17068 Application(s): dialyzer
Related Id(s): ERL-1223
Clarify warning option -Wunmatched_returns in
dialyzer(3).
Full runtime dependencies of dialyzer-4.3: compiler-7.0, erts-9.0,
hipe-3.16.1, kernel-5.3, stdlib-3.4, syntax_tools-2.0, wx-1.2
---------------------------------------------------------------------
--- erl_docgen-1.0.2 ------------------------------------------------
---------------------------------------------------------------------
The erl_docgen-1.0.2 application can be applied independently of
other applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-17013 Application(s): erl_docgen
Fix links in titles to github and anchors to work.
OTP-17065 Application(s): erl_docgen
Related Id(s): ERL-1386
Fix some typing errors on variable names in
documentation examples.
Full runtime dependencies of erl_docgen-1.0.2: edoc-0.7.13, erts-9.0,
stdlib-3.4, xmerl-1.3.7
---------------------------------------------------------------------
--- erts-11.1.4 -----------------------------------------------------
---------------------------------------------------------------------
The erts-11.1.4 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-16859 Application(s): erts
Fixed bug which could cause VM crash when a NIF is
loaded at the same time as the Erlang implementation of
the NIF is called. Bug exists since OTP 23.0.
OTP-16863 Application(s): erts
Related Id(s): ERL-1352
Fixed enif_make_map_* functions in debug build when
given environment from enif_alloc_env.
OTP-16864 Application(s): erts
Fixed broken configuration option --disable-pie.
OTP-16869 Application(s): erts
Related Id(s): ERL-1337
Fixed rare distribution bug in race between received
signal (link/monitor/spawn_request/spawn_reply) and
disconnection. Symptom: VM crash. Since: OTP 21.0.
OTP-16888 Application(s): erts
Fixed a performance issue when extremely many items
were stored in the process dictionary. (Fixing this bug
also eliminates a compiler warning emitted by the
latest version of Clang.)
OTP-16894 Application(s): erts
Remove -ftree-copyrename from flags passed to compiler
when building erts. The flag is not used by modern
gcc's and is not supported by clang.
OTP-16899 Application(s): erts
Modules using complicated nested binary comprehensions
could fail to load.
OTP-16948 Application(s): erts
Related Id(s): PR-2792
Fixed a race in file:read_file/1 were an incomplete
file could be returned if another OS process swapped
the file out while reading.
OTP-17030 Application(s): erts
The call list_to_integer("10", true) would return 4
instead of raising an exception. Certain other atoms
would also be interpreted as a number base.
OTP-17055 Application(s): erts
Related Id(s): ERL-1417
On macOS 11 (Big Sur), erl would not start if the
maximum number of file descriptors were unlimited
(ulimit -n unlimited).
--- Improvements and New Features ---
OTP-17067 Application(s): erts, otp
Related Id(s): PR-2907
Add manifest to all executables and dynamic libraries.
Full runtime dependencies of erts-11.1.4: kernel-7.0, sasl-3.3,
stdlib-3.13
---------------------------------------------------------------------
--- inets-7.3.1 -----------------------------------------------------
---------------------------------------------------------------------
The inets-7.3.1 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-16873 Application(s): inets
Related Id(s): ERL-330
Fix an issue about HTML-escaped filename in inets.
Full runtime dependencies of inets-7.3.1: erts-6.0, kernel-3.0,
mnesia-4.12, runtime_tools-1.8.14, ssl-5.3.4, stdlib-3.5
---------------------------------------------------------------------
--- kernel-7.2 ------------------------------------------------------
---------------------------------------------------------------------
The kernel-7.2 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-16976 Application(s): kernel
Related Id(s): PR-2807
The apply call's in logger.hrl are now called with
erlang prefix to avoid clashed with local apply/3
functions.
OTP-17034 Application(s): kernel
Related Id(s): PR-2866
Fix memory leak in pg.
OTP-17038 Application(s): kernel
Fix crash in logger_proxy due to stray gen_server:call
replies not being handled. The stray replies come when
logger is under heavy load and the flow control
mechanism is reaching its limit.
OTP-17054 Application(s): kernel
Related Id(s): ERL-1424
Fixed a bug in erl_epmd:names() that caused it to
return the illegal return value noport instead of
{error, Reason} where Reason is the actual error
reason. This bug also propagated to net_adm:names().
This bug was introduced in kernel version 7.1 (OTP
23.1).
--- Improvements and New Features ---
OTP-16954 Application(s): kernel
Related Id(s): ERIERL-544
Add export of some resolver documented types.
OTP-16956 Application(s): kernel
Related Id(s): ERIERL-547
Add configurable retry timeout for resolver lookups.
OTP-17058 Application(s): kernel
Related Id(s): PR-2887
gen_server:multi_call() has been optimized in the
special case of only calling the local node with
timeout set to infinity.
Full runtime dependencies of kernel-7.2: erts-11.0, sasl-3.0,
stdlib-3.13
---------------------------------------------------------------------
--- megaco-3.19.4 ---------------------------------------------------
---------------------------------------------------------------------
The megaco-3.19.4 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-17012 Application(s): megaco
Related Id(s): ERL-1405
Empty statistics descriptor (now) allowed in both
encode and decode for version 3.
Full runtime dependencies of megaco-3.19.4: asn1-3.0, debugger-4.0,
erts-7.0, et-1.5, kernel-3.0, runtime_tools-1.8.14, stdlib-2.5
---------------------------------------------------------------------
--- mnesia-4.18.1 ---------------------------------------------------
---------------------------------------------------------------------
The mnesia-4.18.1 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-17066 Application(s): mnesia
Related Id(s): PR-2889
Avoid potential performance issue, if the input queue
to mnesia_tm is long.
Full runtime dependencies of mnesia-4.18.1: erts-9.0, kernel-5.3,
stdlib-3.4
---------------------------------------------------------------------
--- public_key-1.9.2 ------------------------------------------------
---------------------------------------------------------------------
The public_key-1.9.2 application can be applied independently of
other applications on a full OTP 23 installation.
--- Improvements and New Features ---
OTP-17069 Application(s): public_key
Corrected dialyzer spec for pkix_path_validation/3
Full runtime dependencies of public_key-1.9.2: asn1-3.0, crypto-3.8,
erts-6.0, kernel-3.0, stdlib-3.5
---------------------------------------------------------------------
--- snmp-5.7 --------------------------------------------------------
---------------------------------------------------------------------
The snmp-5.7 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-16920 Application(s): snmp
Related Id(s): OTP-16649
If an attempt was made to send a v1 trap on a IPv6
transport this could cause a master agent crash (if the
agent was *not* multi-threaded).
OTP-17056 Application(s): snmp
Related Id(s): OTP-17049
The deprecation info for a couple of the deprecated MIB
compiler functions where incorrect. Referred to
functions in the 'snmpa' module instead of 'snmpc'.
--- Improvements and New Features ---
OTP-16649 Application(s): snmp
Make it possible for the agent to configure separate
transports (sockets) for request-responder and
trap-sender.
OTP-16989 Application(s): snmp
Related Id(s): ERIERL-544
The mib server cache handling has been improved. First,
the default gclimit has been changed from 100 to
infinity (to ensure the size is as small as possible).
Also, the method of removing old elements has been
optimized.
OTP-17022 Application(s): snmp
Related Id(s): ERIERL-492
*** HIGHLIGHT ***
It is now possible to configure the agent in such a way
that the order of outgoing notifications are processed
in order in the agent. What happens after the
notification message has left the agent (been sent) is
of course still out of our control.
OTP-17033 Application(s): snmp
Improve handling of the udp_error message. Basically an
improved error/warning message.
Full runtime dependencies of snmp-5.7: crypto-3.3, erts-6.0,
kernel-3.0, mnesia-4.12, runtime_tools-1.8.14, stdlib-2.5
---------------------------------------------------------------------
--- ssh-4.10.6 ------------------------------------------------------
---------------------------------------------------------------------
The ssh-4.10.6 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-16799 Application(s): ssh
Fixed problems in the ssh cli/shell handling. Most
important are:
1) the ssh:shell function did sometimes cause the input
to be echoed twice,
2) the ssh:shell function didn't transfer the LANG and
LC_ALL shell variables to the connected server which
sometimes made Unicode handling erroneous,
3) Unicode was not always transferred correctly to and
from the peer.
OTP-16900 Application(s): ssh
The SSH protocol message SSH_MSG_DISCONNECT was
sometimes sent instead of SSH_MSG_CHANNEL_FAILURE
OTP-16908 Application(s): ssh
Related Id(s): PR-2753
The ssh_cli module now always sends the exit-status to
connected clients so they can use that to check for
successful command execution.
--- Improvements and New Features ---
OTP-16889 Application(s): ssh
A new option pk_check_user enables checking of the
client's user name in the server when doing public key
authentication.
Full runtime dependencies of ssh-4.10.6: crypto-4.6.4, erts-9.0,
kernel-5.3, public_key-1.6.1, stdlib-3.4.1
---------------------------------------------------------------------
--- ssl-10.2 --------------------------------------------------------
---------------------------------------------------------------------
The ssl-10.2 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-15126 Application(s): ssl
Related Id(s): ERL-1375
SSL's Erlang Distribution Protocol modules
inet_tls_dist and inet6_tls_dist lacked a callback
function, so the start flag "-dist_listen false" did
not work, which has now been fixed.
OTP-16267 Application(s): ssl
Related Id(s): ERIERL-477, ERIERL-571
Correct OpenSSL names for newer cipher suites using DHE
in their name that accidentally got the wrong value
when fixing other older names using EDH instead.
OTP-16849 Application(s): ssl
Related Id(s): ERL-1339
This change improves the handling of DTLS listening
dockets, making it possible to open multiple listeners
on the same port with different IP addresses.
OTP-16921 Application(s): ssl
Fix a bug that causes cross-build failure.
This change excludes the ssl.d dependency file from the
source tarballs.
OTP-16923 Application(s): ssl
Related Id(s): ERL-1341, PR-2786
This change fixes ssl:peername/1 when called on a DTLS
client socket.
OTP-17018 Application(s): ssl
Related Id(s): ERL-1409
Retain emulation of active once on a closed socket to
behave as before 23.1
OTP-17019 Application(s): ssl
Related Id(s): ERL-1412
Corrected server session cache entry deletion pre
TLS-1.3. May increase session reuse.
--- Improvements and New Features ---
OTP-16277 Application(s): ssl
*** HIGHLIGHT ***
Handle extraneous certs in certificate chains as well
as chains that are incomplete but can be reconstructed
or unordered chains. The cert and certfile options will
now accept a list of certificates so that the user may
specify the chain explicitly.
Also, the default value of the depth option has been
increased to allow longer chains by default.
OTP-16445 Application(s): ssl
Related Id(s): PR-2823
*** HIGHLIGHT ***
This change implements optional NSS-style keylog in
ssl:connection_information/2 for debugging purposes.
The keylog contains various TLS secrets that can be
loaded in Wireshark to decrypt TLS packets.
OTP-16529 Application(s): ssl
Use new gen_statem feature of changing callback mode to
improve code maintainability.
OTP-16762 Application(s): ssl
The handling of Service Name Indication has been
aligned with RFC8446.
OTP-16893 Application(s): ssl
*** HIGHLIGHT ***
Add explicit session reuse option to TLS clients for
pre TLS-1.3 sessions. Also, add documentation to Users
Guide for such sessions.
Full runtime dependencies of ssl-10.2: crypto-4.2, erts-10.0,
inets-5.10.7, kernel-6.0, public_key-1.8, stdlib-3.12
---------------------------------------------------------------------
--- stdlib-3.14 -----------------------------------------------------
---------------------------------------------------------------------
The stdlib-3.14 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-16941 Application(s): stdlib
This change fixes the handling of deep lists in the
path component when using uri_string:recompose/1.
OTP-17047 Application(s): stdlib
Fix shell_docs to clear shell decorations
(bold/underline) when paginating output.
Fix various small renderings issues when integrating
shell_docs with edoc.
--- Improvements and New Features ---
OTP-16460 Application(s): stdlib
*** POTENTIAL INCOMPATIBILITY ***
Improved the API and documentation of the uri_string
module.
Added a new chapter to the Users Guide about Uniform
Resource Identifiers and their handling with the new
API.
Added two new API functions:
uri_string:allowed_characters/0 and
uri_string:percent_decode/1.
This change has been marked as potentially incompatible
as uri_string:normalize/2 used to decode
percent-encoded character triplets that corresponded to
characters not in the reserved set. After this change,
uri_string:normalize/2 will only decode those
percent-encoded triplets that correspond to characters
in the unreserved set (ALPHA / DIGIT / "-" / "." / "_"
/ "~").
OTP-16990 Application(s): stdlib
The shell_docs module has been expanded with the
possibility to configure unicode, ansi and column size
for the rendered text.
Full runtime dependencies of stdlib-3.14: compiler-5.0, crypto-3.3,
erts-11.0, kernel-7.0, sasl-3.0
---------------------------------------------------------------------
--- syntax_tools-2.4 ------------------------------------------------
---------------------------------------------------------------------
The syntax_tools-2.4 application can be applied independently of
other applications on a full OTP 23 installation.
--- Improvements and New Features ---
OTP-17046 Application(s): syntax_tools
In the syntax_tools application, the igor module and
all functions in erl_tidy except file/2 have been
deprecated.
Full runtime dependencies of syntax_tools-2.4: compiler-7.0,
erts-9.0, kernel-5.0, stdlib-3.4
---------------------------------------------------------------------
--- tools-3.4.2 -----------------------------------------------------
---------------------------------------------------------------------
The tools-3.4.2 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-16922 Application(s): tools
Related Id(s): PR-2752
Correct the Xref analysis exports_not_used to not
report internally generated behaviour_info/1.
Full runtime dependencies of tools-3.4.2: compiler-5.0, erts-11.0,
erts-9.1, kernel-5.4, runtime_tools-1.8.14, stdlib-3.4
---------------------------------------------------------------------
--- wx-1.9.2 --------------------------------------------------------
---------------------------------------------------------------------
The wx-1.9.2 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-16983 Application(s): wx
Related Id(s): PR-2743
Add popup menu callback to wxTaskBarIcon:new/1.
Full runtime dependencies of wx-1.9.2: erts-6.0, kernel-3.0,
stdlib-2.0
---------------------------------------------------------------------
--- xmerl-1.3.26 ----------------------------------------------------
---------------------------------------------------------------------
The xmerl-1.3.26 application can be applied independently of other
applications on a full OTP 23 installation.
--- Fixed Bugs and Malfunctions ---
OTP-17060 Application(s): xmerl
Corrected namespace and expanded name in the old dom
backend example module.
OTP-17061 Application(s): xmerl
Corrected a bug that in some cases didn't allow
unresolved references when skip_external_dtd option
used.
Full runtime dependencies of xmerl-1.3.26: erts-6.0, kernel-3.0,
stdlib-2.5
---------------------------------------------------------------------
---------------------------------------------------------------------
---------------------------------------------------------------------
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