Pd version 0.55-1 is available from https://msp.ucsd.edu/software.htm
or (source only) via github: https://github.com/pure-data/pure-data

New stuff:

Shahrokh updated the "expr" family of objects and added string handling (yay!) There are several new functions to manipulate strings. Also, we got a new var() function that takes symbols and treats them as variables from a [value] object (I hope you like this one, it was my idea and request to be able to do something like that). Check the help file for all the new functions and fun.

bug fixes, notably a crasher bug when sending "open" to [readsf~] in verbose mode, but other improvements in thread safety mostly relevant to RISC architectures. The [readsf~]'s "open" method now also searches in the canvas environment. This means you can use paths added via [declare] (which wasn't possible before).

Numerous documentation improvements. If you haven't already, please check the Manual as we (me and @ben.wes did many recent changes in the previous release, but we had forgotten about one important intelligent patching feature though that now is also there (I forgot which one, haha).