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A new release of RcppRedis arrived on CRAN today. And just like for the previous release, Russell Pierce contributed a lot of changes via several pull requests which make for more robust operations. In addition, we have started to add support for MessagePack by relying on our recently-announced RcppMsgPack package.

#### Changes in version 0.1.7 (2016-04-27)

• Added support for timeout constructor argument (PR #14 by Russell Pierce)

• Added new commands exists, ltrim, expire and pexpire along with unit tests (PR #16 by Russell Pierce)

• Return NULL for empty keys in serialized get for consistency with lpop and rpop (also PR #16 by Russell Pierce)

• Minor corrections to get code and hget and hset documentation (also PR #16 by Russell Pierce)

• Error conditions are now properly forwarded as R errors (PR #22 by Russell Pierce)

• Results from Redis commands are now checked for NULL (PR #23 by Russell Pierce)

• MessagePack encoding can now be used which requires MessagePackage headers of version 1.0 or later; the (optional) RcppMsgPack package can be used.

Courtesy of CRANberries, there is also a diffstat report for the most recent release. More information is on the RcppRedis page.

This post by Dirk Eddelbuettel originated on his Thinking inside the box blog. Please report excessive re-aggregation in third-party for-profit settings.