[ANN] netsnmp 0.6.0 released

netsnmp 0.6.0 has been released.

This gem provides:

   - Implementation in ruby of the SNMP Protocol for v3, v2c and v1 (most
   notable the rfc3414 and 3826).
   - SNMPv3 USM supporting MD5/SHA/SHA256 auth and DES/AES128 privacy
   crypto algorithms.
   - Client/Manager API with simple interface for get, genext, set and walk.
   - Support for concurrency and evented I/O.
   - Ruby >= 2.1 support (modern)
   - Pure Ruby (no FFI)
   - Easy PDU debugging

### 0.6.0

#### Features

`netsnmp` supports SHA256 as an authentication protocol. You can pass
`:sha256` to the `:auth_protocol` argument, as an alternative too `:sha` or
`:md5`. (#29)

### 0.5.0

#### Improvements

* Using the `sendmsg` and `recvmsg` family of socket APIs, which allow for
connectionless-oriented communication, and do not require the response
packets coming from the same host:port pair (which some old SNMP agents do).

#### Bugfixes

* Fixed corruption of authenticated PDUs when performing auth param
substitution in the payload, which was reported as causing decryption error
report PDUs being sent back.