- 2015.01.27Android version Layout SDK is additionally released.
- 2014.06.24iOS SDK for POS printer is updated. Supporting CT-S281BD.
- 2014.05.23Android/iOS SDK for POS printer is updated. Supporting Chinese printing etc.
- 2014.3.7 OPOS driver, POS for .NET driver, JavaPOS driver, CUPS driver for POS Printer are updated.
- 2013.12.26Citizen Printer Layout SDK for Windows is updated to 220.127.116.11
- 2013.09.30POS for . NET driver is updated from Ver. 18.104.22.168 to 22.214.171.124
- 2013.08.08Android/iOS SDK for POS printer is updated to support CT-S2000/4000
- 2013.07.29Windows Driver for POS printer is updated.
- 2013.06.06Android SDK for POS printer is updated to add function of auto Bluetooth connection.
- 2013.05.27OPOS driver is updated.
- 2013.05.22iOS SDK for POS Printers is updated.
- 2012.08.10OPOS driver is updated. Release note
- 2012.06.29CUPS drivers for barcode printers (ZPL emulation) are newly added. Installation package files for Linux and Mac OSX are available.
- 2012.06.12CUPS drivers for POS printers are updated from 1.0.3 to 1.1.0.
- 2012.06.08Utility software is updated from 2.1.1 to 2.2.0.
- 2012.06.08Command Reference is updated from 0.14 to 0.15.
- 2012.06.01V-COM driver is updated from 126.96.36.199-188.8.131.52 to 184.108.40.206-220.127.116.11.
- 2012.05.24POS for . NET driver is updated from Ver. 18.104.22.168 to 22.214.171.124
- 2012.05.15V-COM driver is updated.
- 2012.05.15Softwares for CMP-20/30 are able to download.
- 2012.04.13OPOS driver is updated from Ver. 126.96.36.199 to Ver. 188.8.131.52.
- 2012.03.26Java POS driver is updated from Ver. 184.108.40.206 to 220.127.116.11. CD-S500/501 are newly supported.
- 2012.03.13OPOS driver is updated from Ver. 18.104.22.168 to Ver. 22.214.171.124.
- 2012.01.05OPOS driver is updated from Ver. 126.96.36.199 to Ver. 188.8.131.52.