- Update to 21.3.8.1:
- Changes for 21.3.8.1:
 * http://erlang.org/download/OTP-21.3.8.1.README
 * erts: Fixed a buffer overflow when binary_to_existing_atom/2
   and list_to_existing_atom/2 was used with the latin1
   encoding. 
 * ssl: Correct solution for retaining tcp flow control
   OTP-15802 (ERL-934) as to not break ssl:recv as
   reported in (ERL-938)
 * tools: cover would fail to start if two processes tried to
   start it at the exact same time.
- Update to 21.3.8:
- Changes for 21.3.8:
 * http://erlang.org/download/OTP-21.3.8.README
 * common_test: The test result when a hook function fails is in
   general the same as if the function that the hook is
   associated with fails. For example, if
   post_init_per_testcase fails the result is that the
   test case is skipped, as is the case when
   init_per_testcase fails.This, however, was earlier not
   true for timetrap timeouts or other error situations
   where the process running the hook function was killed.
   This is now corrected, so the error handling should be
   the same no matter how the hook function fails.
   Related Id(s): ERIERL-334
 * common_test: In some rare cases, when two common_test nodes used the
   same log directory, a timing problem could occur which
   caused common_test to crash because it's log cache file
   was unexpectedly empty. This is now corrected.
   Related Id(s): ERIERL-342
 * common_test: Two new common_test hook functions are introduced:
   post_groups/2, which is called after Suite:groups/0
   post_all/3, which is called after Suite:all/0
   A new term, {testcase,TestCase,RepeatProperties} is now
   also allowed in the return from all/0. This can be used
   for repeating a single test case a specific number of
   times, or until it fails or succeeds once.
 * eldap, public_key, ssl:  Back port of bug fix ERL-893 from OTP-22 and document
   enhancements that will solve dialyzer warnings for
   users of the ssl application.
   This change also affects public_key, eldap (and inet doc).
   Related Id(s): ERL-893, ERL-929, PR-2215
 * erl_interface: erl_interface/ei refused to use node names with an
   alive name (the part of the node name preceding the @
   sign) longer than 63 characters and a host name longer
   than 64 characters. The total amount of characters
   allowed in a node name (alivename@hostname) was thus
   limited to 128 characters. These limits applied both to
   the own node name as well as node names of other nodes.
   Ordinary Erlang nodes limit the node name length to 256
   characters, which meant that you could not communicate
   with certain Erlang nodes due to their node name used.
   erl_interface/ei now allow the total amount of
   characters in a node name to be up to 256 characters.
   These characters may be distributed between alive name
   and host name in whatever way needed. That is, the
   maximum amount of characters in the alive name may be
   254 and the maximum amount of characters in the host
   name may be 254, but in total the node name must not
   exceed 256 characters.
 * erts:  Fixed more bugs in process_info(reductions) causing it
   to sometimes behave non-monotonic. That is, a
   subsequent call toward the same process could return a
   lower reduction value.
   Related Id(s): ERIERL-337, OTP-15709
 * ssl:  Missing check of size of user_data_buffer made internal
   socket behave as an active socket instead of active N.
   This could cause memory problems.
 * eldap, public_key, ssl: Back port of bug fix ERL-893 from OTP-22 and document
   enhancements that will solve dialyzer warnings for
   users of the ssl application.
   This change also affects public_key, eldap (and inet doc).
 * stdlib: A bug in gen_statem has been fixed where the internal
   timeout message could arrive as an info to the callback
   module during high load due to incorrect use of
   asynchronous timer cancel.
 

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