Version 0.2.4

• Document NFS limitation (#19, @r2evans).
• Move CI to GitHub Actions.
• Change open argument of file() to "r+" (#20).

Version 0.2.3

• Set a default for use_lock_file in the constructor.

Version 0.2.2

• Skip some tests on CRAN to avoid parallel socket brittleness.

Version 0.2.1

• Add R6 docstrings.
• Add a use_lock_file argument to allow users to disable the lock file (#18).

Version 0.2.0

• Add the import() method.
• Bugfix: make pop(0) and list(0) return no messages.

Version 0.1.6

• Fix indexing issue when pushing message of length 0 (#15, @daroczig).

Version 0.1.5

• Allow txtqs to be created in subdirectories.

Version 0.1.4

• Speed up push() by avoiding data.frame(), write.table(), namespaced function calls, and superfluous file connections.
• Remove dependency on fs.
• Add $validate() to check if the files are corrupted. Does not check the whole database file.

Version 0.1.3

• Increase the precision of time stamps (to the microsecond) and store them as characters (more compact).

Version 0.1.2

• Improved read performance for long messages.

Version 0.1.1

• Store the POSIXct Sys.time() stamp of when each message is pushed.

Version 0.1.0

• Add a new $clean() method to remove pushed messages from the database file.
• Add a new $reset() method to remove all messages from the database file, pushed or not.
• Add new $establish() and $txtq_establish() methods to do the most important work initailizing the queue.
• Ensure all public/API methods are one-liners that call private methods.

Version 0.0.4

• Initial release