diff --git a/CHANGELOG.md b/CHANGELOG.md
index 165517b0e14..966b2da7d0d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -45,13 +45,20 @@
 
 # `libp2p` facade crate
 
-# 0.50.0 - [unreleased]
+# 0.50.0
+
+This is a large release. After > 4 years, rust-libp2p ships with an [(alpha) QUIC
+implementation](transports/quic/CHANGELOG.md#070-alpha). The [necessary TLS logic is extracted into
+its own crate](transports/tls/CHANGELOG.md#010-alpha), and can thus be used detached from QUIC, e.g.
+on top of TCP as an alternative to Noise. In addition to these two transports, this release adds
+a third, namely [WebRTC (browser-to-server)](transports/webrtc/CHANGELOG.md#040-alpha). But that is
+definitely not it. See below for the many other changes packed into this release.
 
 - Introduce [`libp2p-tls` `v0.1.0-alpha`](transports/tls/CHANGELOG.md#010-alpha). See [PR 2945].
 - Introduce [`libp2p-quic` `v0.7.0-alpha`](transports/quic/CHANGELOG.md#070-alpha). See [PR 2289].
+- Introduce [`libp2p-webrtc` `v0.4.0-alpha`](transports/webrtc/CHANGELOG.md#040-alpha). See [PR 2289].
 - Remove deprecated features: `tcp-tokio`, `mdns-tokio`, `dns-tokio`, `tcp-async-io`, `mdns-async-io`, `dns-async-std`.
   See [PR 3001].
-- Introduce [`libp2p-tls` `v0.1.0`](transports/tls/CHANGELOG.md#010). See [PR 2945].
 - Remove `NetworkBehaviour` macro export from root crate in favor of re-exported macro from `libp2p::swarm`.
   Change your import from `libp2p::NetworkBehaviour` to `libp2p::swarm::NetworkBehaviour`. See [PR 3055].
 - Feature-gate `NetworkBehaviour` macro behind `macros` feature flag. See [PR 3055].
@@ -100,7 +107,7 @@
   - `tcp-async-io` in favor of `tcp` + `async-std`
   - `mdns-async-io` in favor of `mdns` + `async-std`
   - `dns-async-std` in favor of `dns` + `async-std`
-  
+
   See [PR 2962].
 
 - Update individual crates.
diff --git a/Cargo.toml b/Cargo.toml
index 3e31931a4b1..22011f7d382 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -123,7 +123,7 @@ libp2p-mdns = { version = "0.42.0", path = "protocols/mdns", optional = true }
 libp2p-quic = { version = "0.7.0-alpha", path = "transports/quic", optional = true }
 libp2p-tcp = { version = "0.38.0", path = "transports/tcp", optional = true }
 libp2p-tls = { version = "0.1.0-alpha", path = "transports/tls", optional = true }
-libp2p-webrtc = { version = "0.1.0-alpha", path = "transports/webrtc", optional = true }
+libp2p-webrtc = { version = "0.4.0-alpha", path = "transports/webrtc", optional = true }
 libp2p-websocket = { version = "0.40.0", path = "transports/websocket", optional = true }
 
 [target.'cfg(not(target_os = "unknown"))'.dependencies]
diff --git a/core/CHANGELOG.md b/core/CHANGELOG.md
index 4cc0f2ffe0b..a7e24f5d616 100644
--- a/core/CHANGELOG.md
+++ b/core/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.38.0 [unreleased]
+# 0.38.0
 
 - Remove deprecated functions `StreamMuxerExt::next_{inbound,outbound}`. See [PR 3031].
 
diff --git a/misc/metrics/CHANGELOG.md b/misc/metrics/CHANGELOG.md
index 31beaa1227c..50ada3fe51a 100644
--- a/misc/metrics/CHANGELOG.md
+++ b/misc/metrics/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.11.0 [unreleased]
+# 0.11.0
 
 - Update to `libp2p-dcutr` `v0.8.0`.
 
diff --git a/misc/prost-codec/CHANGELOG.md b/misc/prost-codec/CHANGELOG.md
index ae3f7e10183..f21b9d5bc2f 100644
--- a/misc/prost-codec/CHANGELOG.md
+++ b/misc/prost-codec/CHANGELOG.md
@@ -1,5 +1,4 @@
-
-# 0.3.0 [unreleased]
+# 0.3.0
 
 - Implement `From` trait for `std::io::Error`. See [PR 2622].
 - Don't leak `prost` dependency in `Error` type. See [PR 3058].
diff --git a/muxers/mplex/CHANGELOG.md b/muxers/mplex/CHANGELOG.md
index c575b0ca8db..561453b7122 100644
--- a/muxers/mplex/CHANGELOG.md
+++ b/muxers/mplex/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.38.0 [unreleased]
+# 0.38.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/muxers/yamux/CHANGELOG.md b/muxers/yamux/CHANGELOG.md
index 3d5aff9893f..1b8e881cd06 100644
--- a/muxers/yamux/CHANGELOG.md
+++ b/muxers/yamux/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.42.0 [unreleased]
+# 0.42.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/protocols/autonat/CHANGELOG.md b/protocols/autonat/CHANGELOG.md
index d98a65cb9b7..930b873e8db 100644
--- a/protocols/autonat/CHANGELOG.md
+++ b/protocols/autonat/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.9.0 [unreleased]
+# 0.9.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/protocols/dcutr/CHANGELOG.md b/protocols/dcutr/CHANGELOG.md
index 009427116b5..ab4e266c305 100644
--- a/protocols/dcutr/CHANGELOG.md
+++ b/protocols/dcutr/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.8.0 [unreleased]
+# 0.8.0
 
 - Update to `prost-codec` `v0.3.0`.
 
diff --git a/protocols/floodsub/CHANGELOG.md b/protocols/floodsub/CHANGELOG.md
index 6465f82e297..a9414988bd9 100644
--- a/protocols/floodsub/CHANGELOG.md
+++ b/protocols/floodsub/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.41.0 [unreleased]
+# 0.41.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/protocols/gossipsub/CHANGELOG.md b/protocols/gossipsub/CHANGELOG.md
index a9edf7d2224..b2777bad987 100644
--- a/protocols/gossipsub/CHANGELOG.md
+++ b/protocols/gossipsub/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.43.0 [unreleased]
+# 0.43.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/protocols/identify/CHANGELOG.md b/protocols/identify/CHANGELOG.md
index 23be5807c08..fa1d6dc4f6a 100644
--- a/protocols/identify/CHANGELOG.md
+++ b/protocols/identify/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.41.0 [unreleased]
+# 0.41.0
 
 - Change default `cache_size` of `Config` to 100. See [PR 2995].
 
diff --git a/protocols/kad/CHANGELOG.md b/protocols/kad/CHANGELOG.md
index 4d90652aa87..842550618c1 100644
--- a/protocols/kad/CHANGELOG.md
+++ b/protocols/kad/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.42.0 [unreleased]
+# 0.42.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/protocols/mdns/CHANGELOG.md b/protocols/mdns/CHANGELOG.md
index 1f757ada825..3b0aeeffa3d 100644
--- a/protocols/mdns/CHANGELOG.md
+++ b/protocols/mdns/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.42.0 [unreleased]
+# 0.42.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/protocols/ping/CHANGELOG.md b/protocols/ping/CHANGELOG.md
index f1742af7e45..f3dca60cc92 100644
--- a/protocols/ping/CHANGELOG.md
+++ b/protocols/ping/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.41.0 [unreleased]
+# 0.41.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/protocols/relay/CHANGELOG.md b/protocols/relay/CHANGELOG.md
index 1805cc59851..8e46448590c 100644
--- a/protocols/relay/CHANGELOG.md
+++ b/protocols/relay/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.14.0 [unreleased]
+# 0.14.0
 
 - Update to `prost-codec` `v0.3.0`.
 
diff --git a/protocols/rendezvous/CHANGELOG.md b/protocols/rendezvous/CHANGELOG.md
index c48dfd7cd93..603d024f548 100644
--- a/protocols/rendezvous/CHANGELOG.md
+++ b/protocols/rendezvous/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.11.0 [unreleased]
+# 0.11.0
 
 - De- and encode protobuf messages using `prost-codec`. See [PR 3058].
 
diff --git a/protocols/request-response/CHANGELOG.md b/protocols/request-response/CHANGELOG.md
index 247e8ec8bde..a97d2400f07 100644
--- a/protocols/request-response/CHANGELOG.md
+++ b/protocols/request-response/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.23.0 [unreleased]
+# 0.23.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/swarm-derive/CHANGELOG.md b/swarm-derive/CHANGELOG.md
index 75a31df4d69..1567ed39406 100644
--- a/swarm-derive/CHANGELOG.md
+++ b/swarm-derive/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.30.2 - [unreleased]
+# 0.30.2
 
 - Replace `NetworkBehaviour` Derive macro deprecated `inject_*` method implementations
   with the new `on_swarm_event` and `on_connection_handler_event`.
diff --git a/swarm/CHANGELOG.md b/swarm/CHANGELOG.md
index 54b7a5d7c47..546ae75f7a6 100644
--- a/swarm/CHANGELOG.md
+++ b/swarm/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.41.0 [unreleased]
+# 0.41.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/transports/deflate/CHANGELOG.md b/transports/deflate/CHANGELOG.md
index a08fd655130..ff405b88187 100644
--- a/transports/deflate/CHANGELOG.md
+++ b/transports/deflate/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.38.0 [unreleased]
+# 0.38.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/transports/dns/CHANGELOG.md b/transports/dns/CHANGELOG.md
index d64e2cbff5d..8f1a2828734 100644
--- a/transports/dns/CHANGELOG.md
+++ b/transports/dns/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.38.0 [unreleased]
+# 0.38.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/transports/noise/CHANGELOG.md b/transports/noise/CHANGELOG.md
index 15b72e332af..7bbab360faa 100644
--- a/transports/noise/CHANGELOG.md
+++ b/transports/noise/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.41.0 [unreleased]
+# 0.41.0
 
 - Remove `prost::Error` from public API. See [PR 3058].
 
diff --git a/transports/plaintext/CHANGELOG.md b/transports/plaintext/CHANGELOG.md
index 41be38378ec..2b77e7ea849 100644
--- a/transports/plaintext/CHANGELOG.md
+++ b/transports/plaintext/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.38.0 [unreleased]
+# 0.38.0
 
 - Add more specific error reporting and remove `prost::Error` from public API. See [PR 3058].
 
diff --git a/transports/quic/CHANGELOG.md b/transports/quic/CHANGELOG.md
index b334c71ecac..ed710a9af6a 100644
--- a/transports/quic/CHANGELOG.md
+++ b/transports/quic/CHANGELOG.md
@@ -1,3 +1,3 @@
-# 0.7.0-alpha [unreleased]
+# 0.7.0-alpha
 
 - Initial alpha release.
diff --git a/transports/tcp/CHANGELOG.md b/transports/tcp/CHANGELOG.md
index b996413f831..5bc47853039 100644
--- a/transports/tcp/CHANGELOG.md
+++ b/transports/tcp/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.38.0 [unreleased]
+# 0.38.0
 
 - Update to `if-watch`  `v3.0.0` and pass through `tokio` and `async-io` features. See [PR 3101].
 
diff --git a/transports/tls/CHANGELOG.md b/transports/tls/CHANGELOG.md
index 9a05756f769..69afd5204dd 100644
--- a/transports/tls/CHANGELOG.md
+++ b/transports/tls/CHANGELOG.md
@@ -1,3 +1,3 @@
-# 0.1.0 [unreleased]
+# 0.1.0
 
 Initial release.
diff --git a/transports/uds/CHANGELOG.md b/transports/uds/CHANGELOG.md
index b19c220a1a5..672d7b1adf5 100644
--- a/transports/uds/CHANGELOG.md
+++ b/transports/uds/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.37.0 [unreleased]
+# 0.37.0
 
 - Update `rust-version` to reflect the actual MSRV: 1.60.0. See [PR 3090].
 
diff --git a/transports/wasm-ext/CHANGELOG.md b/transports/wasm-ext/CHANGELOG.md
index 828705141c9..958cb51121f 100644
--- a/transports/wasm-ext/CHANGELOG.md
+++ b/transports/wasm-ext/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.38.0 [unreleased]
+# 0.38.0
 
 - Update to `libp2p-core` `v0.38.0`.
 
diff --git a/transports/webrtc/CHANGELOG.md b/transports/webrtc/CHANGELOG.md
new file mode 100644
index 00000000000..85f9147a778
--- /dev/null
+++ b/transports/webrtc/CHANGELOG.md
@@ -0,0 +1,3 @@
+# 0.4.0-alpha
+
+- Initial alpha release.
\ No newline at end of file
diff --git a/transports/webrtc/Cargo.toml b/transports/webrtc/Cargo.toml
index f77c66bb447..9e869c19816 100644
--- a/transports/webrtc/Cargo.toml
+++ b/transports/webrtc/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "libp2p-webrtc"
-version = "0.1.0-alpha"
+version = "0.4.0-alpha"
 authors = ["Parity Technologies <admin@parity.io>"]
 description = "WebRTC transport for libp2p"
 repository = "https://github.com/libp2p/rust-libp2p"
diff --git a/transports/websocket/CHANGELOG.md b/transports/websocket/CHANGELOG.md
index 3b8f024af78..092ea653e59 100644
--- a/transports/websocket/CHANGELOG.md
+++ b/transports/websocket/CHANGELOG.md
@@ -1,4 +1,4 @@
-# 0.40.0 [unreleased]
+# 0.40.0
 
 - Update to `libp2p-core` `v0.38.0`.