Bump for b4 release

Author: michaelosthege

RELEASE-NOTES.md

@@ -7,8 +7,8 @@ Instead update the vNext section until 4.0.0 is out.
 ⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠⚠
 -->
 
-## PyMC vNext (4.0.0b1 → 4.0.0b2 → 4.0.0b3 → 4.0.0b4 → 4.0.0)
-⚠ The changes below are the delta between the upcoming releases `v3.11.5` →...→ `v4.0.0`.
+## PyMC vNext (4.0.0b1 → ... → 4.0.0b4 → 4.0.0)
+⚠ The changes below are the delta between the releases `v3.11.5` →...→ `v4.0.0`.
 
 ### Not-yet working features
 We plan to get these working again, but at this point their inner workings have not been refactored.

pymc/__init__.py

@@ -13,7 +13,7 @@
 #   limitations under the License.
 
 # pylint: disable=wildcard-import
-__version__ = "4.0.0b3"
+__version__ = "4.0.0b4"
 
 import logging
 import multiprocessing as mp