diff --git a/core/nwb.behavior.yaml b/core/nwb.behavior.yaml
index 1a951b2..b81db23 100644
--- a/core/nwb.behavior.yaml
+++ b/core/nwb.behavior.yaml
@@ -66,7 +66,7 @@ groups:
 - neurodata_type_def: BehavioralEvents
   neurodata_type_inc: NWBDataInterface
   default_name: BehavioralEvents
-  doc: TimeSeries for storing behavioral events. See description of <a href="#BehavioralEpochs">BehavioralEpochs</a>
+  doc: TimeSeries for storing behavioral events. See description of BehavioralEpochs
     for more details.
   groups:
   - neurodata_type_inc: TimeSeries
@@ -76,7 +76,7 @@ groups:
 - neurodata_type_def: BehavioralTimeSeries
   neurodata_type_inc: NWBDataInterface
   default_name: BehavioralTimeSeries
-  doc: TimeSeries for storing Behavoioral time series data. See description of <a href="#BehavioralEpochs">BehavioralEpochs</a>
+  doc: TimeSeries for storing behavioral time series data. See description of BehavioralEpochs
     for more details.
   groups:
   - neurodata_type_inc: TimeSeries
diff --git a/core/nwb.file.yaml b/core/nwb.file.yaml
index e9d146e..8a882cd 100644
--- a/core/nwb.file.yaml
+++ b/core/nwb.file.yaml
@@ -7,7 +7,7 @@ groups:
   attributes:
   - name: nwb_version
     dtype: text
-    value: "2.8.0"
+    value: "2.9.0-alpha"
     doc: File version string. Use semantic versioning, e.g. 1.2.1. This will be the
       name of the format with trailing major, minor and patch numbers.
   datasets:
diff --git a/core/nwb.namespace.yaml b/core/nwb.namespace.yaml
index dd967ef..d249e30 100644
--- a/core/nwb.namespace.yaml
+++ b/core/nwb.namespace.yaml
@@ -57,4 +57,4 @@ namespaces:
   - doc: This source module contains neurodata_type for retinotopy data.
     source: nwb.retinotopy.yaml
     title: Retinotopy
-  version: "2.8.0"
+  version: "2.9.0-alpha"
diff --git a/docs/format/source/conf.py b/docs/format/source/conf.py
index 0a2f836..30cb4f9 100644
--- a/docs/format/source/conf.py
+++ b/docs/format/source/conf.py
@@ -83,9 +83,9 @@ def setup(app):
 # built documents.
 #
 # The short X.Y version.
-version = '2.8.0'
+version = '2.9.0'
 # The full version, including alpha/beta/rc tags.
-release = '2.8.0'
+release = '2.9.0-alpha'
 
 # The language for content autogenerated by Sphinx. Refer to documentation
 # for a list of supported languages.
diff --git a/docs/format/source/format_release_notes.rst b/docs/format/source/format_release_notes.rst
index 4fafbd9..a8eb3fc 100644
--- a/docs/format/source/format_release_notes.rst
+++ b/docs/format/source/format_release_notes.rst
@@ -3,6 +3,13 @@
 Release Notes
 =============
 
+2.9.0 (Upcoming)
+----------------
+
+Minor changes
+^^^^^^^^^^^^^
+- Fixed typo and removed HTML tag from doc of behavioral neurodata types. (#600)
+
 2.8.0 (November 24, 2024)
 -------------------------