# pion/webrtc v4.2.20

- Product: pion/webrtc (https://whatsnew.fyi/product/pion-webrtc)
- Vendor: pion
- Date: 2026-09-04
- Version: v4.2.20
- Original notes: https://github.com/pion/webrtc/releases/tag/v4.2.20
- Permalink: https://whatsnew.fyi/product/pion-webrtc/releases/v4.2.20

What's New is an index, not a publisher: every entry below links to the vendor's own release notes, which are the authoritative source. Entries are labelled where they are hand-curated sample data, pre-releases, or drawn from a secondary source such as a developer blog.

Reuse: the summaries, labels and curation here are © What's New. Quote freely with attribution and a link back; wholesale republication of the corpus is not permitted — terms: https://whatsnew.fyi/terms. The vendors' own release notes remain their publishers'.

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- **changed** — Update interceptor and drop transport/v3
- **changed** — Pass if remote is ICE through SetRemoteICELite
- **changed** — Update to stun/v4
- **changed** — Update pion/turn to v5.1.0
- **changed** — Update pion/ice to v4.4.1
- **changed** — Update pion/dtls to v3.1.8
- **fixed** — Fix data race in TrackRemote.read
- **added** — Add H265 FMTP matching
- **changed** — Update test ICE pwd for spec minimums

##### Changelog
* 01500046517c6321a15c9e23308d7b1cf3d4ab02 Update interceptor, drop transport/v3
* 2d681fc228f0fbc999d43db5738dbd98a59fa701 Pass if remote is ICE through SetRemoteICELite
* 40443d215aed684c28166d6832bef33fbafddf36 Update to stun/v4
* 0a9f86baf169324ef4f2ec4d8fdac962e24cd528 Update module github.com/pion/turn/v5 to v5.1.0 (#3516)
* 8c25dc09fa9e7c09aac4309ead88093d760432b0 Update module github.com/pion/ice/v4 to v4.4.1 (#3490)
* bb84f63fcbddf5dbfe2203f5132ee1b7d71d90aa Update test ICE pwd for spec minimums
* 6b5b4f1f05b9e7f279e3a7770f37b2444006874d Fix data race in TrackRemote.read
* 9cb015643ea40f1509f246c80902f6d4ccb0ff97 Add H265 FMTP matching
* 278b7f9c2a3ea59a788be3257734bdfd77081b0f Update module github.com/pion/dtls/v3 to v3.1.8 (#3511)
* 953062340403cefc62ce4703e192221487a5b6ea Update module github.com/pion/dtls/v3 to v3.1.6 (#3509)