** Emacs now supports Unicode Standard version 15.1.
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** The Network Security Manager now warns about 3DES by default.
This cypher is no longer recommended owing to a major vulnerability
disclosed in 2016, and its small 112 bit key size. Emacs now warns
about its use also when 'network-security-level' is set to 'medium'
(the default). See 'network-security-protocol-checks'.
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** The Network Security Manager now warns about <2048 bits in DH key exchange.
Emacs used to warn for Diffie-Hellman key exchanges with prime numbers
smaller than 1024 bits. Since more servers now support it, this