Since when did the SR22 include a glass cockpit

Context: SR22s and SR20s built before 2003 were equipped with traditional analog instruments and a 10" Multi-function display. In February 2003, Cirrus began offering SR22s with the Avidyne Entegra primary flight display, making the plane the first of its kind to come with a glass cockpit. Later that year, this instrumentation became standard equipment on all SR-series aircraft and sparked a major transition in general aviation, whereby over 90% of all new light aircraft by the year 2006 were equipped with glass cockpits. Retrofits are available for the older SR aircraft that replace the analog instrument panels with one that includes a PFD, a new MFD and the installation of back-up mechanical instruments.

On 22 May 2008, Cirrus revealed the "Cirrus Perspective" glass cockpit. Both cockpits were available for a while and after 2008 the SR22 was sold with only the Perspective panel.

In 2009, the third-generation Cirrus SR22 GTS came equipped with a new enhanced vision system, a sophisticated dual-wavelength instrument that offers both infrared and synthetic vision.

At the 2010 EAA AirVenture, Cirrus announced its plans to certify Garmin's ESP system on the Cirrus SR22. It included advanced flight envelope protection that could stabilize the aircraft with the push of a button, to avoid spiral from developing.

The Cirrus Perspective-Plus avionics flight deck was introduced in 2017, with a faster processing speed, animated datalink weather, payload management, visual approach capabilities, wireless database uploads, glass back-up instruments, and more.

In 2020, the Perspective-Plus flight deck included a new stabilized approach advisory system which provides alerts to the pilot of unstable conditions during approach.

Answer: Since February 2003 Cirrus started to offer a glass panel for the SR22. First the Avidyne Entegra was offered to customers. Also retrofits became available for older SR versions. In May 2008, Cirrus revealed the "Cirrus Perspective" glass cockpit, which was based on instruments created by Garmin.

Until today, Cirrus is including Garmin glass cockpits in it's aircrafts.