v3.1.0 / 2019-09-20

add consistent panic error message
Expose the Message interface Validate method
return error if a custom type is enqueued
Handle pointer types in Enqueue()
message: update maxMessageBytes to 32KB

v3.0.1 / 2018-10-02

Migrate from Circle V1 format to Circle V2
Adds CLI for sending segment events
Vendor packages back-go and uuid instead of using gitsubmodules

v3.0.0 / 2016-06-02

3.0 is a significant rewrite with multiple breaking changes.
Quickstart.
Documentation.
GoDocs.
What's New in v3.

v2.1.0 / 2015-12-28

Add ability to set custom timestamps for messages.
Add ability to set a custom net/http client.
Add ability to set a custom logger.
Fix edge case when client would try to upload no messages.
Properly upload in-flight messages when client is asked to shutdown.
Add ability to set .integrations field on messages.
Fix resource leak with interval ticker after shutdown.
Add retries and back-off when uploading messages.
Add ability to set custom flush interval.

v2.0.0 / 2015-02-03

rewrite with breaking API changes

v1.2.0 / 2014-09-03

add public .Flush() method
rename .Stop() to .Close()

v1.1.0 / 2014-09-02

add client.Stop() to flash/wait. Closes #7

v1.0.0 / 2014-08-26

fix response close
change comments to be more go-like
change uuid libraries

0.1.2 / 2014-06-11

add runnable example
fix: close body

0.1.1 / 2014-05-31

refactor locking

0.1.0 / 2014-05-22

replace Debug option with debug package

0.0.2 / 2014-05-20

add .Start()
add mutexes
rename BufferSize to FlushAt and FlushInterval to FlushAfter
lower FlushInterval to 5 seconds
lower BufferSize to 20 to match other clients