update changelog

Author: raydouglass

CHANGELOG.md

@@ -1,6 +1,27 @@
-# cuCIM 21.08.00 (Date TBD)
+# cuCIM 21.08.00 (4 Aug 2021)
 
-Please see https://github.com/rapidsai/cucim/releases/tag/v21.08.00a for the latest changes to this development branch.
+## 🐛 Bug Fixes
+
+- Remove int-type bug on Windows in skimage.measure.label ([#72](https://github.com/rapidsai/cucim/pull/72)) [@grlee77](https://github.com/grlee77)
+- Fix missing array interface for associated_image() ([#65](https://github.com/rapidsai/cucim/pull/65)) [@gigony](https://github.com/gigony)
+- Handle zero-padding version string ([#59](https://github.com/rapidsai/cucim/pull/59)) [@gigony](https://github.com/gigony)
+- Remove invalid conda environment activation ([#58](https://github.com/rapidsai/cucim/pull/58)) [@ajschmidt8](https://github.com/ajschmidt8)
+
+## 📖 Documentation
+
+- Fix a typo in cache document ([#66](https://github.com/rapidsai/cucim/pull/66)) [@gigony](https://github.com/gigony)
+
+## 🚀 New Features
+
+- Pin `isort` hook to 5.6.4 ([#73](https://github.com/rapidsai/cucim/pull/73)) [@charlesbluca](https://github.com/charlesbluca)
+- Add skimage.morphology.thin ([#27](https://github.com/rapidsai/cucim/pull/27)) [@grlee77](https://github.com/grlee77)
+
+## 🛠️ Improvements
+
+- Add SciPy 2021 to README ([#79](https://github.com/rapidsai/cucim/pull/79)) [@jakirkham](https://github.com/jakirkham)
+- Use more descriptive ElementwiseKernel names in cucim.skimage ([#75](https://github.com/rapidsai/cucim/pull/75)) [@grlee77](https://github.com/grlee77)
+- Add initial Python unit/performance tests for TIFF loader module ([#62](https://github.com/rapidsai/cucim/pull/62)) [@gigony](https://github.com/gigony)
+- Fix `21.08` forward-merge conflicts ([#57](https://github.com/rapidsai/cucim/pull/57)) [@ajschmidt8](https://github.com/ajschmidt8)
 
 # cuCIM 21.06.00 (9 Jun 2021)