diff --git a/CHANGELOG.md b/CHANGELOG.md
index fd33099958..c56e7df395 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,10 +1,76 @@
-The changelog format is bound to change as we figure out a way to autogenerate it.
+# Changelog
+All notable changes to this project will be documented in this file.
 
-## version 0.9.1 (released 2018-03-05)
+The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/).
 
+_At the moment, the project does __not__ adhere to [Semantic Versioning](http://semver.org/spec/v2.0.0.html). That is expected to change with version 1.0._
+
+
+## [0.10.0] - unreleased
+
+### Added
+- Lisk support #197
+- Stellar support #167, #268
+- Wanchain support #230
+- support for "auto lock delay" feature
+- `TrezorClient` takes an additional argument `state` that allows reusing the previously entered passphrase #241
+- USB transports mention udev rules in exception messages #245
+- `log.enable_debug_output` function turns on wire logging, instead of having to use `TrezorClientVerbose`
+- BIP32 paths now support `123h` in addition to `123'` to indicate hardening
+- trezorctl: `-p` now supports prefix search for device path #226
+- trezorctl: smarter handling of firmware updates #242, #269
+
+### Changed
+- reorganized transports and moved into their own `transport` submodule
+- protobuf messages and coins info is now regenerated at build time from the `trezor-common` repository #248
+- renamed `ed25519raw` to `_ed25519` to indicate its privateness
+- renamed `ed25519cosi` to `cosi` and expanded its API
+- protobuf messages are now logged through Python's `logging` facility instead of custom printing through `VerboseWireMixin`
+- `client.format_protobuf` is moved to `protobuf.format_message`
+- `tools.Hash` is renamed to `tools.btc_hash`
+- `coins` module `coins_txapi` is renamed to `tx_api`.  
+  `coins_slip44` is renamed to `slip44`.
+- build: stricter flake8 checks
+- build: split requirements to separate files
+- tests: unified finding test device, while respecting `TREZOR_PATH` env variable.
+- tests: auto-skip appropriately marked tests based on Trezor device version
+- tests: only show wire output when run with `-v`
+- tests: allow running `xfail`ed tests selectively based on `pytest.ini`
+- docs: updated README with clearer install instructions #185
+- docs: switched changelog to Keep a Changelog format #94
+
+### Deprecated
+- `ckd_public` is only maintained in `tests.support` submodule and considered private
+- `TrezorClient.expand_path` is moved to plain function `tools.parse_path`
+- `TrezorDevice` is deprecated in favor of `transport.enumerate_devices` and `transport.get_transport`
+- XPUB-related handling in `tools` is slated for removal
+
+### Removed
+- most Python 2 compatibility constructs are gone #229
+- `TrezorClientVerbose` and `VerboseWireMixin` is removed
+- specific `tx_api.TxApi*` classes removed in favor of `coins.tx_api`
+- `client.PRIME_DERIVATION_FLAG` is removed in favor of `tools.HARDENED_FLAG` and `tools.H_()`
+- hard dependency on Ethereum libraries and HIDAPI is changed into extras that need to be
+  specified explicitly. Require `trezor[hidapi]` or `trezor[ethereum]` to get them.
+
+### Fixed
+- WebUSB enumeration returning bad devices on Windows 10 #223
+- `sign_tx` operation sending empty address string #237
+- Wrongly formatted Ethereum signatures #236
+- protobuf layer would wrongly encode signed integers #249, #250
+- protobuf pretty-printing broken on Python 3.4 #256
+- trezorctl: Matrix recovery on Windows wouldn't allow backspace #207
+- aes_encfs_getpass.py: fixed Python 3 bug #169
+
+
+## [0.9.1] - 2018-03-05
+
+### Added
 - proper support for Trezor model T
-- gradually dropping Python 2 compatibility (pypi package will now be marked as Python 3 only)
 - support for Monacoin
 - improvements to `trezorctl`:
   - add pretty-printing of features and protobuf debug dumps (fixes #199)
   - support `TREZOR_PATH` environment variable to preselect a Trezor device.
+
+### Removed
+- gradually dropping Python 2 compatibility (pypi package will now be marked as Python 3 only)