CHANGELOG: use unicode arrow to indicate updated versions (#144)

Author: jakevdp

CHANGELOG.md

@@ -1,52 +1,48 @@
 # Change log
 
-## v2025.1.9
-(*) = updated since previous release
+↗️ = updated since previous release
 
+## v2025.1.9
 - `jax-ai-stack` packages:
-  - (*) `jax==0.4.38`
+  - `jax==0.4.38` ↗️
   - `flax==0.10.2`
   - `ml_dtypes==0.4.0`
   - `optax==0.2.4`
-  - (*) `orbax-checkpoint==0.11.0`
+  - `orbax-checkpoint==0.11.0` ↗️
   - `orbax-export==0.0.6`
 - `jax-ai-stack[tfds]` packages:
   - `tensorflow==2.18.0`
   - `tensorflow_datasets==4.9.7`
 - `jax-ai-stack[grain]` packages:
-  - (*) `grain==0.2.2`
+  - `grain==0.2.2` ↗️
 
 ## v2024.12.10
-(*) = updated since previous release
-
 - `jax-ai-stack` packages:
-  - (*) `jax==0.4.37`
-  - (*) `flax==0.10.2`
+  - `jax==0.4.37` ↗️
+  - `flax==0.10.2` ↗️
   - `ml_dtypes==0.4.0`
-  - (*) `optax==0.2.4`
-  - (*) `orbax-checkpoint==0.10.2`
-  - (*) `orbax-export==0.0.6`
+  - `optax==0.2.4` ↗️
+  - `orbax-checkpoint==0.10.2` ↗️
+  - `orbax-export==0.0.6` ↗️
 - `jax-ai-stack[tfds]` packages:
   - `tensorflow==2.18.0`
-  - (*) `tensorflow_datasets==4.9.7`
+  - `tensorflow_datasets==4.9.7` ↗️
 - `jax-ai-stack[grain]` packages:
   - `grain==0.2.2`
 
 ## v2024.11.1
-(*) = updated since previous release
-
 - `jax-ai-stack` packages:
-  - (*) `jax==0.4.35`
-  - (*) `flax==0.10.0`
+  - `jax==0.4.35` ↗️
+  - `flax==0.10.0` ↗️
   - `ml_dtypes==0.4.0`
   - `optax==0.2.3`
-  - (*) `orbax-checkpoint==0.7.0`
+  - `orbax-checkpoint==0.7.0` ↗️
   - `orbax-export==0.0.5`
 - `jax-ai-stack[tfds]` packages:
-  - (*) `tensorflow==2.18.0`
+  - `tensorflow==2.18.0` ↗️
   - `tensorflow_datasets==4.9.6`
 - `jax-ai-stack[grain]` packages:
-  - (*) `grain==0.2.2`
+  - `grain==0.2.2` ↗️
 
 ## v2024.10.1
 - `jax-ai-stack` packages: