color. Using Multi-Stream Transport (MST), a DisplayPort port can drive two 4K UHD () displays at 60Hz, or up to four WQXGA () displays at 60Hz with 24bit/px RGB color. The new standard includes mandatory Dual-mode for DVI and HDMI adapters, implementing the HDMI2.0 standard and HDCP2.2 content protection. The Thunderbolt 3 connection standard was originally to include DisplayPort1.3 capability, but the final release ended up with only version 1.2. The VESA's Adaptive Sync feature in DisplayPort version 1.3 remains an optional part of the specification. 1.4 DisplayPort version 1.4 was published 1 March 2016. No new transmission modes are defined, so HBR3 (32.4Gbit/s) as introduced in version 1.3 still remains as the highest available mode. DisplayPort1.4 adds support for Display Stream Compression 1.2 (DSC), Forward Error Correction, HDR10 metadata defined in CTA-861.3, including static and dynamic metadata and the Rec. 2020 color space, for HDMI interoperability, and extends the maximum number of inline audio channels to 32. 1.4a DisplayPort version 1.4a was published in April 2018. VESA made no official press release for this version. It updated DisplayPort's DSC implementation from DSC 1.2 to 1.2a. 2.0 On 26 June 2019, VESA formally released the DisplayPort 2.0 standard. VESA stated that version 2.0 is the first major update to the DisplayPort standard since March 2016, and provides up to a ≈3× improvement in data rate (from 25.92 to 77.37Gbit/s) compared to the previous version of DisplayPort (1.4a), as well as new capabilities to address the future performance requirements of traditional displays. These include beyond 8K resolutions, higher refresh rates and high dynamic range (HDR) support at higher resolutions, improved support for multiple display configurations, as well as improved user experience with augmented/virtual reality (AR/VR) displays, including support for 4K-and-beyond VR resolutions. Products incorporating DisplayPort 2.0 are not projected by VESA to appear on the market until later in 2021. According to a roadmap published by VESA in September 2016, a new version of DisplayPort was intended to be launched in "early 2017". It would have improved the link rate from 8.1 to 10.0Gbit/s, a 23% increase. This would have increased the total bandwidth from 32.4Gbit/s to 40.0Gbit/s. However, no new version was released in 2017, likely delayed to make further improvements after the HDMI Forum announced in January 2017 that their next standard (HDMI2.1) would offer up to 48Gbit/s of bandwidth. According to a press release on 3 January 2018,