This release:

• includes the first released version of zeptoIPv6 as a loadable extra
• abstracts the common interfaces away from zeptoIPv4 (formerly just zeptoIP) and zeptoIPv6
• adds an optional ENC28J60 10 Mbit Ethernet driver for use with zeptoIP
• adds extra locking to the FAT32 implementation, so multiple different files and directories may be safely accessed in different tasks without requiring extra locking on the part of the user (note that individual file and directory objects do not have locks of their own, so the user will need to provide locks if they intend on individual file and directory objects being shared by multiple tasks)

Note that with extra work and care zeptoIPv4 and zeptoIPv6 may be potentially used simultaneously with a single hardware network interface (e.g. CYW43439, ENC28J60), but this is not supported out of the box, and may be prohibitive from a memory usage perspective without manually reducing buffer sizes for endpoints.