| ⇢ | A | Encoding added | |
| ⇢ | A | Flags added | |
| A | ↛ | ExtendedHeader removed | |
| A | ↛ | Header removed |
| ⇢ | A | Metadata::fromResource() added | |
| ⇢ | A | Flags::isEnabled() added | |
| ⇢ | A | Metadata::createReadableStreamFromData() added | |
| ⇢ | A | Encoding::values() added | |
| ⇢ | A | Flags::__construct() added | |
| A | ↘ | B | TextInformationFrame::readInformation() got worse |
| F | ↗ | D | Metadata::read() improved |
| A | ↛ | Frame::setSize() removed | |
| A | ↛ | Frame::isFlagEnabled() removed | |
| A | ↛ | Frame::setFlags() removed | |
| A | ↛ | Header::__construct() removed | |
| A | ↛ | Header::setSize() removed | |
| A | ↛ | Header::isFlagEnabled() removed | |
| A | ↛ | Header::setFlags() removed | |
| A | ↛ | Metadata::__construct() removed | |
| A | ↛ | ExtendedHeader::__construct() removed | |
| A | ↛ | ExtendedHeader::setSize() removed | |
| ⋮ | view more | ||