In September IBM has released the new Informix Release 12.10xC9W1. The new release is a so called Post Interim Drop. PIDs are thoroughly tested, cumulative releases based off of the latest quality assured Fix Pack version. PID releases are versioned with a trailing ‘W’. Each subsequent PID builds on the one before until the codeline ultimately becomes the next commercial Fix Pack release. Therefore, if a defect fix is included in W1, it will be in all subsequent PID releases as well as the next Fix Pack unless the fix itself introduces problems. Please have a look at the fix list forInformix 12.10xC9W1: