1.4.3

What's Changed

• Bump activesupport from 6.1.7 to 6.1.7.1 by @dependabot in #1126
• Support "rtmps" RTMPNWSocket without setPrameter option. by @shogo4405 in #1128
• Support VideoCode constantBitRate mode. by @shogo4405 in #1129
• fixed #1130 Single instance IOVideoUnit and IOAudioUnit. by @shogo4405 in #1136
• fixed #1103 Add audiosamplerate. by @shogo4405 in #1137
• Remove MP4 classes. by @shogo4405 in #1139

Full Changelog: 1.4.2...1.4.3