diff --git a/CHANGES.rst b/CHANGES.rst
index e8f47b591f..05c8bd5b86 100644
--- a/CHANGES.rst
+++ b/CHANGES.rst
@@ -1,4 +1,4 @@
-3.9 (unreleased)
+3.9 (2024-04-05)
 ================
 
 New Features
@@ -54,12 +54,6 @@ Imviz
 - Enabling any matched zoom tool in a viewer disables other matched zoom tools in other viewers
   to avoid recursion. [#2764]
 
-Mosviz
-^^^^^^
-
-Specviz
-^^^^^^^
-
 Specviz2d
 ^^^^^^^^^
 
@@ -101,18 +95,13 @@ Imviz
 
 - Single-pixel tool is no longer available. To mark a single-pixel area, use Markers plugin. [#2710]
 
-Mosviz
-^^^^^^
-
-Specviz
-^^^^^^^
-
-Specviz2d
-^^^^^^^^^
-
 Bug Fixes
 ---------
 
+- Fix redshifted line lists that were displaying at rest wavelengths, by assuming a global redshift. [#2726]
+
+- Order of RGB preset colors now matches for less than and greater than 5 layers. [#2731]
+
 Cubeviz
 ^^^^^^^
 
@@ -123,8 +112,7 @@ Imviz
 
 - Apertures that are selected and later modified to be invalid properly show a warning. [#2684]
 
-Mosviz
-^^^^^^
+- Histogram in Plot Options no longer stalls for a very large image. [#2735]
 
 Specviz
 ^^^^^^^
@@ -133,39 +121,6 @@ Specviz
   display label for the y axis in spectral viewer. Previously it was hard coded
   to always display ``flux density`` no matter the input unit. [#2703]
 
-Specviz2d
-^^^^^^^^^
-
-Other Changes and Additions
----------------------------
-
-3.8.3 (unreleased)
-==================
-
-Bug Fixes
----------
-
-- Fix redshifted line lists that were displaying at rest wavelengths, by assuming a global redshift. [#2726]
-
-- Order of RGB preset colors now matches for less than and greater than 5 layers. [#2731]
-
-Cubeviz
-^^^^^^^
-
-Imviz
-^^^^^
-
-- Histogram in Plot Options no longer stalls for a very large image. [#2735]
-
-Mosviz
-^^^^^^
-
-Specviz
-^^^^^^^
-
-Specviz2d
-^^^^^^^^^
-
 3.8.2 (2024-02-23)
 ==================
 
@@ -216,16 +171,11 @@ Imviz
 
 - Fixes viewer keys in ``viz.viewers`` for additionally created viewers. [#2624]
 
-Mosviz
-^^^^^^
-
 Specviz
 ^^^^^^^
 
 -  Fixed parser bug where an HDUList would load as SpectrumList, even though it was a Spectrum1D. [#2576]
 
-Specviz2d
-^^^^^^^^^
 
 3.8 (2023-11-29)
 ================
diff --git a/CITATION.cff b/CITATION.cff
index 6a15a26cb6..6df2208105 100644
--- a/CITATION.cff
+++ b/CITATION.cff
@@ -73,9 +73,9 @@ authors:
 - family-names: "Volfman"
   given-names: "Sabrina"
 title: "Jdaviz"
-version: 3.8.0
+version: 3.9.0
 doi: https://doi.org/10.5281/zenodo.5513927
-date-released: 2023-11-29
+date-released: 2024-04-05
 url: "https://github.com/spacetelescope/jdaviz"
 
 # see a full list of contributors here: https://github.com/spacetelescope/jdaviz/graphs/contributors