diff --git a/CHANGELOG.md b/CHANGELOG.md
index dd67b54347..2b16f4c19f 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,7 +1,19 @@
 # Changelog
 
 ## Current develop
-- [[PR269]](https://github.com/lanl/singularity-eos/pull/269) Add SAP Polynomial EoS
+
+### Fixed (Repair bugs, etc)
+
+### Added (new features/APIs/variables/...)
+
+### Changed (changing behavior/API/variables/...)
+
+### Infrastructure (changes irrelevant to downstream codes)
+
+### Removed (removing behavior/API/varaibles/...)
+
+## Release 1.8.0
+Date: 11/28/2023
 
 ### Fixed (Repair bugs, etc)
 - [[PR278]](https://github.com/lanl/singularity-eos/pull/278) Fixed EOSPAC unit conversion errors for scalar lookups
@@ -25,6 +37,7 @@
 - [[PR308]](https://github.com/lanl/singularity-eos/pull/308) spack builds +fortran now compile via correct blocking out of interfaces via preprocessor ifdef
 
 ### Added (new features/APIs/variables/...)
+- [[PR269]](https://github.com/lanl/singularity-eos/pull/269) Add SAP Polynomial EoS
 - [[PR278]](https://github.com/lanl/singularity-eos/pull/278) Added EOSPAC option functionality in class constructor
 - [[PR278]](https://github.com/lanl/singularity-eos/pull/278) Added a new function for returning the minimum energy as a function of density for an EOS (only EOSPAC at the moment)
 - [[PR278]](https://github.com/lanl/singularity-eos/pull/278) Added a new Fortran API for simple pressure and bulk moduli lookups
diff --git a/CMakeLists.txt b/CMakeLists.txt
index dcfe06fcdc..3f01efcaee 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -24,7 +24,7 @@ endif()
 # declare the project name
 project(
   singularity-eos
-  VERSION 1.7.0
+  VERSION 1.8.0
   LANGUAGES NONE)
 
 list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")
diff --git a/spack-repo/packages/singularity-eos/package.py b/spack-repo/packages/singularity-eos/package.py
index 156891bb5b..3c7a82c098 100644
--- a/spack-repo/packages/singularity-eos/package.py
+++ b/spack-repo/packages/singularity-eos/package.py
@@ -20,9 +20,10 @@ class SingularityEos(CMakePackage, CudaPackage):
 
     # allow `main` version for development
     version("main", branch="main")
+    version("1.8.0", sha256="1f1ec496f714aa23cc7003c88a85bd10d0e53e37659ba7310541248e48a66558")
     version("1.7.0", sha256="ce0825db2e9d079503e98cecf1c565352be696109042b3a0941762b35f36dc49")
-    version("1.6.2", sha256="9c85fca679139a40cc9c72fcaeeca78a407cc1ca184734785236042de364b942")
-    version("1.6.1", sha256="c6d92dfecf9689ffe2df615791c039f7e527e9f47799a862e26fa4e3420fe5d7")
+    version("1.6.2", sha256="9c85fca679139a40cc9c72fcaeeca78a407cc1ca184734785236042de364b942", deprecated=True)
+    version("1.6.1", sha256="c6d92dfecf9689ffe2df615791c039f7e527e9f47799a862e26fa4e3420fe5d7", deprecated=True)
 
     # build with kokkos, kokkos-kernels for offloading support
     variant("kokkos", default=False, description="Enable kokkos")