Erlang/OTP 28.1 is the first maintenance patch package for OTP 28, with mostly bug fixes as well as improvements.

Potential incompatibilities: #

• The internal inet_dns_tsig and inet_res modules have been fixed to TSIG verify the correct timestamp. In the process two undocumented error code atoms have been corrected to notauth and notzone to adhere to the DNS RFCs. Code that relied on the previous incorrect values may have to be corrected.

HIGHLIGHTS #

• A User’s Guide to dbg is now available in the documentation.
• Support for quantum crypto signature algorithm ML-DSA and key exchange algorithm ML-KEM (ssl, public_key and crypto if built and linked with OpenSSL 3.5).

For details about bugfixes and potential incompatibilities see the Erlang 28.1 README

The Erlang/OTP source can also be found at GitHub on the official Erlang repository, https://github.com/erlang/otp

Download links for this and previous versions are found here:

• https://www.erlang.org/downloads