diff --git a/CHANGELOG.md b/CHANGELOG.md
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@@ -1,7 +1,83 @@
 # Changelog
 
-## Version 0.1
+## Version 1.2.2
 
-- Feature A added
-- FIX: nasty bug #1729 fixed
-- add your changes here!
+### What's Changed
+
+#### New Features
+* Enable support for *internally parallelized evaluation of the loss function using multi-rank workers* by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/110
+* Provide example script for how to use Propulate with multi-rank workers for HPO / NAS of distributed data-parallel neural networks in `PyTorch` by @coquelin77 in https://github.com/Helmholtz-AI-Energy/propulate/pull/124
+* Introduce *CMA-ES* propagator by @DonnyDevV in https://github.com/Helmholtz-AI-Energy/propulate/pull/91
+* Introduce *particle swarm optimization* propagator by @Morridin in https://github.com/Helmholtz-AI-Energy/propulate/pull/78
+* Introduce *Nelder-Mead* propagator by @oskar-taubert in https://github.com/Helmholtz-AI-Energy/propulate/pull/125
+* Introduce *surrogate models* for early stopping of unpromising individuals by @vtotiv in https://github.com/Helmholtz-AI-Energy/propulate/pull/112
+* Provide improved example script for how to use Propulate for HPO / NAS of neural networks in `PyTorch` (see `torch_example.py`) by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/106
+
+#### Maintenance
+* Introduce integration tests by @oskar-taubert in https://github.com/Helmholtz-AI-Energy/propulate/pull/98 and https://github.com/Helmholtz-AI-Energy/propulate/pull/99 and https://github.com/Helmholtz-AI-Energy/propulate/pull/116 and https://github.com/Helmholtz-AI-Energy/propulate/pull/140 and @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/122
+* Enable functional pre-commit hooks by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/114
+* Improve tutorials and documentation by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/138
+
+
+### New Contributors
+* @DonnyDevV made their first contribution in https://github.com/Helmholtz-AI-Energy/propulate/pull/91
+* @Morridin made their first contribution in https://github.com/Helmholtz-AI-Energy/propulate/pull/78
+* @vtotiv made their first contribution in https://github.com/Helmholtz-AI-Energy/propulate/pull/112
+
+**Full Changelog**: https://github.com/Helmholtz-AI-Energy/propulate/compare/v1.0.1...v1.2.2
+
+## Version 1.1.0
+
+### What's Changed
+
+#### New Features
+* Provide automatically built `Sphinx` _documentation including installation instructions, theoretical background, tutorials, and API references_ at https://propulate.readthedocs.io/ by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/71
+* Add comprehensive tutorials
+  * Add example script for how to use Propulate for HPO / NAS of neural networks in `PyTorch` by @oskar-taubert in https://github.com/Helmholtz-AI-Energy/propulate/pull/75
+  * Iss12 - Add simple example script without islands by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/54
+  * Include benchmark functions from Propulate publication by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/69
+* Introduce _separate logging_ for `Propulate` optimizer, enabling using a separate logger within the loss function for, e.g., NAS by @coquelin77 in https://github.com/Helmholtz-AI-Energy/propulate/pull/73
+* Introduce _clean and more intuitive checkpointing_
+  * Iss44 - Create checkpoint path in `Pollinator` if not exists by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/51
+* Add _contribution guidelines_ by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/79
+* Add _typehints_ and clean and consistent _docstrings_ by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/64
+* Iss40 - Boundary-inclusive sampling for ordinal parameters by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/52
+* Iss46 - Introduce evaluation time as `Individual` attribute #46 by @SMEISEN in https://github.com/Helmholtz-AI-Energy/propulate/pull/47
+
+#### Maintenance
+* More cleaned-up, structured, and refactored code, including consistent docstrings, type hints, and meaningful names for classes and variables
+  * Introduce `Propulator` base class by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/74
+  * Iss39 - Remove inter-island communicator by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/53
+
+### New Contributors
+* @SMEISEN made their first contribution in https://github.com/Helmholtz-AI-Energy/propulate/pull/47
+
+**Full Changelog**: https://github.com/Helmholtz-AI-Energy/propulate/compare/1.0.1...v1.1.0
+
+## Version 1.0.1
+
+### What's Changed
+* Create first functional release by @oskar-taubert in https://github.com/Helmholtz-AI-Energy/propulate/pull/43 and https://github.com/Helmholtz-AI-Energy/propulate/pull/42
+
+**Full Changelog**: https://github.com/Helmholtz-AI-Energy/propulate/compare/1.0.0...1.0.1
+
+## Version 1.0.0
+### What's Changed
+#### New Features
+* Provide new `lightning` example for HPO / NAS of neural networks in `PyTorch` by @oskar-taubert in https://github.com/Helmholtz-AI-Energy/propulate/pull/25
+
+#### Maintenance
+* Rename `SelectBest`/`SelectWorst` to `SelectMin`/`SelectMax` by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/27
+* Rename wrapper to `islands` by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/29
+* Create user-provided checkpoint folder if not exists by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/33
+
+#### Bug fixes
+* Fix `rng.sample()` call for Python 3.11 by @elcorto in https://github.com/Helmholtz-AI-Energy/propulate/pull/15
+* Iss34 - Fix default propagator for ordinal-only HPO by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/37
+* Iss38 - Fix continuing from checkpoint by @mcw92 in https://github.com/Helmholtz-AI-Energy/propulate/pull/41
+* Fix checkpoint path by @oskar-taubert in https://github.com/Helmholtz-AI-Energy/propulate/pull/26
+
+### New Contributors
+* @elcorto made their first contribution in https://github.com/Helmholtz-AI-Energy/propulate/pull/15
+
+**Full Changelog**: https://github.com/Helmholtz-AI-Energy/propulate/commits/1.0.0