diff --git a/cms/CHANGELOG.md b/cms/CHANGELOG.md
index e10452b8e..f1741b80e 100644
--- a/cms/CHANGELOG.md
+++ b/cms/CHANGELOG.md
@@ -4,6 +4,88 @@ All notable changes to this project will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## 0.3.0 (UNRELEASED)
+
+### Added
+- Implement `PemLabel` for `ContentInfo` ([#2353])
+- Callbacks in the SignerInfo builder ([#1991])
+- decode a `MessageDigest` from an `Attribute` ([#1992])
+- `DecodeValue` implementation for `Time` ([#1986])
+- types from RFC6031 - Symmetric Key Package Content ([#1952])
+- `MessageDigest` as a newtype around `OctetString` ([#1967])
+- ECC KeyAgreementRecipientInfo initial support ([#1579])
+- PasswordRecipientInfoBuilder for CMS ([#1273])
+- Support for `AsyncSigner` ([#1533])
+- implementation for `SignedDataBuilder` for `PSS` ([#1531])
+- Support for `KEMRecipientInfo` for RFC9629 ([#1485])
+
+### Changes
+- MSRV bumped to 1.85, Edition bumped to 2024 ([#1689])
+- Implement `core::error::Error` for `cms::builder::Error` ([#1429] & [#2394])
+- Bump `zeroize` to `1.8.1` ([#1419])
+- Fixup content-type comparison ([#1978])
+- Accept a reference in the `From<&Certificate> for SignerIdentifier` ([#1962] & [#1966])
+- Propagate std feature to `x509-cert` ([#1990])
+- Bump `pem-rfc7468` to `1.0.0` (#[2096])
+- Bump `rand` to `0.10` (#[2212])
+- Bump `der` to `0.8` (#[2234])
+- Bump `digest` to `0.11` (#[2237])
+- Bump `cipher` to `0.5` (#[2238])
+- Bump `sha2` to `0.11` (#[2273])
+- Bump `spki` to `0.8` (#[2277])
+- Bump `aes` to `0.9` (#[2281])
+- Bump `aes-kw` to `0.3` (#[2282])
+- Bump `cbc` to `0.2` (#[2282])
+- Bump `ctr` to `0.10` (#[2282])
+- Bump `des` to `0.9` (#[2282])
+- Bump `sha3` to `0.11` (#[2282])
+- Bump `pkcs5` to `0.8` (#[2301])
+- Bump `signature` to `3` (#[2326])
+- Bump `elliptic-curve` to `0.14.1` (#[2364])
+- Bump `ecdsa` to `0.17` (#[2371])
+- Bump `p256` to `0.14` (#[2371])
+- Bump `x509-cert` to `0.3` (#[2375])
+
+### Removed
+- `alloc` feature, `cms` has a hard dependency on `liballoc` ([#1566])
+- direct dependency on `std` ([#2395])
+- `pem` dependency ([#1565])
+
+[#1273]: https://github.com/RustCrypto/formats/pull/1273
+[#1419]: https://github.com/RustCrypto/formats/pull/1419
+[#1429]: https://github.com/RustCrypto/formats/pull/1429
+[#1485]: https://github.com/RustCrypto/formats/pull/1485
+[#1531]: https://github.com/RustCrypto/formats/pull/1531
+[#1533]: https://github.com/RustCrypto/formats/pull/1533
+[#1565]: https://github.com/RustCrypto/formats/pull/1565
+[#1566]: https://github.com/RustCrypto/formats/pull/1566
+[#1579]: https://github.com/RustCrypto/formats/pull/1579
+[#1689]: https://github.com/RustCrypto/formats/pull/1689
+[#1962]: https://github.com/RustCrypto/formats/pull/1962
+[#1966]: https://github.com/RustCrypto/formats/pull/1966
+[#1967]: https://github.com/RustCrypto/formats/pull/1967
+[#1978]: https://github.com/RustCrypto/formats/pull/1978
+[#1986]: https://github.com/RustCrypto/formats/pull/1986
+[#1990]: https://github.com/RustCrypto/formats/pull/1990
+[#1991]: https://github.com/RustCrypto/formats/pull/1991
+[#2096]: https://github.com/RustCrypto/formats/pull/2096
+[#2212]: https://github.com/RustCrypto/formats/pull/2212
+[#2234]: https://github.com/RustCrypto/formats/pull/2234
+[#2237]: https://github.com/RustCrypto/formats/pull/2237
+[#2238]: https://github.com/RustCrypto/formats/pull/2238
+[#2273]: https://github.com/RustCrypto/formats/pull/2273
+[#2277]: https://github.com/RustCrypto/formats/pull/2277
+[#2281]: https://github.com/RustCrypto/formats/pull/2281
+[#2282]: https://github.com/RustCrypto/formats/pull/2282
+[#2301]: https://github.com/RustCrypto/formats/pull/2301
+[#2326]: https://github.com/RustCrypto/formats/pull/2326
+[#2353]: https://github.com/RustCrypto/formats/pull/2353
+[#2364]: https://github.com/RustCrypto/formats/pull/2364
+[#2371]: https://github.com/RustCrypto/formats/pull/2371
+[#2375]: https://github.com/RustCrypto/formats/pull/2375
+[#2394]: https://github.com/RustCrypto/formats/pull/2394
+[#2395]: https://github.com/RustCrypto/formats/pull/2395
+
 ## 0.2.3 (2024-01-08)
 ### Added
 - RFC 5544 `TimeStampedData` implementation ([#1258])