diff --git a/CHANGELOG.md b/CHANGELOG.md
index 775960f7e..3c48440d2 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -22,7 +22,8 @@ Classify the change according to the following categories:
     ### Fixed
     ### Deprecated
     ### Removed
-## Develop 2024-02-21
+
+## v0.42.0
 ### Changed
 - In `core/pv.jl` a change was made to make sure we are using the same assumptions as PVWatts guidelines, the default `tilt` angle for a fixed array should be 20 degrees, irrespective of it being a rooftop `(1)` or ground-mounted (open-rack)`(2)` system. By default the `tilt` will be set to 20 degrees for ground-mount and rooftop, and 0 degrees for axis-tracking (`array_type = (3) or (4)`)
 
diff --git a/Project.toml b/Project.toml
index cc194352a..567972048 100644
--- a/Project.toml
+++ b/Project.toml
@@ -1,7 +1,7 @@
 name = "REopt"
 uuid = "d36ad4e8-d74a-4f7a-ace1-eaea049febf6"
 authors = ["Nick Laws", "Hallie Dunham <hallie.dunham@nrel.gov>", "Bill Becker <william.becker@nrel.gov>", "Bhavesh Rathod <bhavesh.rathod@nrel.gov>", "Alex Zolan <alexander.aolan@nrel.gov>", "Amanda Farthing <amanda.farthing@nrel.gov>"]
-version = "0.41.0"
+version = "0.42.0"
 
 [deps]
 ArchGDAL = "c9ce4bd3-c3d5-55b8-8973-c0e20141b8c3"