Erlang/OTP17.1 is a service release on the 17 track with mostly bug fixes, but is does contain a number of new features and characteristics improvements as well.

Some highlights of the release are:

• crypto: Add aes_cfb8 cypher to crypto:block_encrypt and block_decrypt.
• diameter: Add result code counters for CEA, DWA, and DPA.
• erts: The following built in functions in the erlang and binary modules now bump an appropriate amount of reductions and yield when out of reductions: binary_to_list/1, binary_to_list/3, bitstring_to_list/1, list_to_binary/1, iolist_to_binary/1, list_to_bitstring/1, binary:list_to_bin/1
• hipe: Handle Maps instructions get_map_elements, put_map_assoc, put_map_exact in the HiPE native code compiler.
• mnesia: The time for inserting locks for a transaction with large number of locks is reduced significantly.
• ssh: Option max_sessions added to ssh:daemon/{2,3}.
• stdlib: Add maps:get/3 to maps module. The function will return the supplied default value if the key does not exist in the map.

Many thanks to 24 different contributors in this release

You can find more info and download the release at the download page.