the release of MKVToolNix v6.8.0 after a patch from DivX was merged. A draft document has been submitted to the Internet Engineering Task Force which describes a method to add HEVC support to the Real-time Transport Protocol. Using HEVC's intra frame encoding, a still-image coded format called Better Portable Graphics (BPG) has been proposed by the programmer Fabrice Bellard. It is essentially a wrapper for images coded using the HEVC Main 4:4:4 16 Still Picture profile with up to 14 bits per sample, although it uses an abbreviated header syntax and adds explicit support for Exif, ICC profiles, and XMP metadata. Patent license terms License terms and fees for HEVC patents, compared with its main competitors: Provision for costless software As with its predecessor AVC, software distributors that implement HEVC in products must pay a price per distributed copy. While this licensing model is unproblematic for paid software, it is an obstacle to most free and open-source software, which is meant to be freely distributable. In the opinion of MulticoreWare, the developer of x265, enabling royalty-free software encoders and decoders is in the interest of accelerating HEVC adoption. HEVC Advance made an exception that specifically waives the royalties on software-only implementations (both decoders and encoders) when not bundled with hardware. However, the exempted software is not free from the licensing obligations of other patent holders (e.g. members of the MPEG LA pool). While the obstacle to free software is no concern in for example TV broadcast networks, this problem, combined with the prospect of future collective lock-in to the format, makes several organizations like Mozilla (see OpenH264) and the Free Software Foundation Europe wary of royalty-bearing formats for internet use. Competing formats intended for internet use (VP9 and AV1) are intended to steer clear of these concerns by being royalty free (provided there are no third-party claims of patent rights). : Regardless of how the software is licensed from the software authors (see software licensing), if what it does is patented, its use remains bound by the patent holders' rights unless the use of the patents has been authorized by a license. Versatile Video Coding In October 2015, MPEG and VCEG formed Joint Video Exploration Team (JVET) to evaluate available compression technologies and study the requirements for a next-generation video compression standard. The new algorithm should have 30–50% better compression rate for the same perceptual quality, with support for lossless