Erlang/OTP 27.1 Release

September 18, 2024 · by Björn Gustavsson

OTP 27.1 #

Erlang/OTP 27.1 is the first maintenance patch package for OTP 27, with mostly bug fixes as well as improvements.

Highlights #

  • The zip module has been updated with support for:

    • zip64 archives - Archives larger than 4GB or with more than 2^32 entries.
    • extended timestamps - Higher resolution and in UTC.
    • UID/GID - Save and extract the original UID/GID.
    • Fixes so that permission mode attributes are correctly read and set for files in archives.
    • zip:list_dir/2 now also returns directories, not only files. (You can disable this behaviour by using the option skip_directories).

  • All releases now have .zip versions of the Windows installer that can be used to install Erlang/OTP on Windows when you do not have administrator priviliges. You can download it from erlang.org/downloads or from https://github.com/erlang/otp/releases.

    Various bugs in the original implementation have also been fixed, such as:

    • Correctly encoding and decoding the DOS timestamps for entries within an archive (that is the non-extended timestamp).
    • Fixed DOS timestamps to be set to localtime instead of UTC (use extended timestamps for UTC timestamps).
    • Used the unix file attributes read from disk when creating archives instead of setting everything to 644.

Potential incompatibilities: #

  • Progress reports for a dynamically started supervisor will now be logged at debug level.

For details about bugfixes and potential incompatibilities see the Erlang 27.1 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